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1031 lines
47 KiB
1031 lines
47 KiB
15 years ago
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// Copyright (c) 2004-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2 as published by
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// the Free Software Foundation
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//
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// There are special exceptions to the terms and conditions of the GPL
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// as it is applied to this software. View the full text of the
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// exception in file EXCEPTIONS in the directory of this software
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// distribution.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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using System;
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using System.Data;
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using System.Data.Common;
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using System.Globalization;
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using System.IO;
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using System.Reflection;
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using System.Text;
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using MySql.Data.Common;
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using MySql.Data.Types;
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using System.Collections.Specialized;
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using System.Collections;
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using System.Text.RegularExpressions;
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using MySql.Data.MySqlClient.Properties;
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namespace MySql.Data.MySqlClient
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{
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internal class SchemaProvider
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{
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protected MySqlConnection connection;
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public static string MetaCollection = "MetaDataCollections";
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public SchemaProvider(MySqlConnection connectionToUse)
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{
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connection = connectionToUse;
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}
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public virtual DataTable GetSchema(string collection, String[] restrictions)
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{
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if (connection.State != ConnectionState.Open)
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throw new MySqlException("GetSchema can only be called on an open connection.");
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collection = collection.ToUpper(CultureInfo.InvariantCulture);
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DataTable dt = GetSchemaInternal(collection, restrictions);
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if (dt == null)
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throw new MySqlException("Invalid collection name");
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return dt;
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}
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public virtual DataTable GetDatabases(string[] restrictions)
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{
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Regex regex = null;
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int caseSetting = Int32.Parse(connection.driver.Property("lower_case_table_names"));
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string sql = "SHOW DATABASES";
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// if lower_case_table_names is zero, then case lookup should be sensitive
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// so we can use LIKE to do the matching.
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if (caseSetting == 0)
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{
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if (restrictions != null && restrictions.Length >= 1)
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sql = sql + " LIKE '" + restrictions[0] + "'";
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}
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else if (restrictions != null && restrictions.Length >= 1 && restrictions[0] != null)
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regex = new Regex(restrictions[0], RegexOptions.IgnoreCase);
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MySqlDataAdapter da = new MySqlDataAdapter(sql, connection);
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DataTable dt = new DataTable();
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da.Fill(dt);
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DataTable table = new DataTable("Databases");
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table.Columns.Add("CATALOG_NAME", typeof (string));
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table.Columns.Add("SCHEMA_NAME", typeof (string));
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foreach (DataRow row in dt.Rows)
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{
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if (caseSetting != 0 && regex != null &&
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!regex.Match(row[0].ToString()).Success) continue;
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DataRow newRow = table.NewRow();
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newRow[1] = row[0];
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table.Rows.Add(newRow);
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}
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return table;
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}
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public virtual DataTable GetTables(string[] restrictions)
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{
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DataTable dt = new DataTable("Tables");
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dt.Columns.Add("TABLE_CATALOG", typeof (string));
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dt.Columns.Add("TABLE_SCHEMA", typeof (string));
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dt.Columns.Add("TABLE_NAME", typeof (string));
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dt.Columns.Add("TABLE_TYPE", typeof (string));
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dt.Columns.Add("ENGINE", typeof (string));
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dt.Columns.Add("VERSION", typeof (ulong));
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dt.Columns.Add("ROW_FORMAT", typeof (string));
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dt.Columns.Add("TABLE_ROWS", typeof (ulong));
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dt.Columns.Add("AVG_ROW_LENGTH", typeof (ulong));
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dt.Columns.Add("DATA_LENGTH", typeof (ulong));
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dt.Columns.Add("MAX_DATA_LENGTH", typeof (ulong));
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dt.Columns.Add("INDEX_LENGTH", typeof (ulong));
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dt.Columns.Add("DATA_FREE", typeof (ulong));
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dt.Columns.Add("AUTO_INCREMENT", typeof (ulong));
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dt.Columns.Add("CREATE_TIME", typeof (DateTime));
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dt.Columns.Add("UPDATE_TIME", typeof (DateTime));
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dt.Columns.Add("CHECK_TIME", typeof (DateTime));
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dt.Columns.Add("TABLE_COLLATION", typeof (string));
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dt.Columns.Add("CHECKSUM", typeof (ulong));
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dt.Columns.Add("CREATE_OPTIONS", typeof (string));
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dt.Columns.Add("TABLE_COMMENT", typeof (string));
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// we have to new up a new restriction array here since
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// GetDatabases takes the database in the first slot
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string[] dbRestriction = new string[4];
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if (restrictions != null && restrictions.Length >= 2)
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dbRestriction[0] = restrictions[1];
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DataTable databases = GetDatabases(dbRestriction);
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if (restrictions != null)
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Array.Copy(restrictions, dbRestriction,
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Math.Min(dbRestriction.Length, restrictions.Length));
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foreach (DataRow db in databases.Rows)
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{
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dbRestriction[1] = db["SCHEMA_NAME"].ToString();
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FindTables(dt, dbRestriction);
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}
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return dt;
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}
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public virtual DataTable GetColumns(string[] restrictions)
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{
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DataTable dt = new DataTable("Columns");
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dt.Columns.Add("TABLE_CATALOG", typeof (string));
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dt.Columns.Add("TABLE_SCHEMA", typeof (string));
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dt.Columns.Add("TABLE_NAME", typeof (string));
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dt.Columns.Add("COLUMN_NAME", typeof (string));
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dt.Columns.Add("ORDINAL_POSITION", typeof (ulong));
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dt.Columns.Add("COLUMN_DEFAULT", typeof (string));
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dt.Columns.Add("IS_NULLABLE", typeof (string));
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dt.Columns.Add("DATA_TYPE", typeof (string));
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dt.Columns.Add("CHARACTER_MAXIMUM_LENGTH", typeof (ulong));
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dt.Columns.Add("CHARACTER_OCTET_LENGTH", typeof (ulong));
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dt.Columns.Add("NUMERIC_PRECISION", typeof (ulong));
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dt.Columns.Add("NUMERIC_SCALE", typeof (ulong));
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dt.Columns.Add("CHARACTER_SET_NAME", typeof (string));
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dt.Columns.Add("COLLATION_NAME", typeof (string));
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dt.Columns.Add("COLUMN_TYPE", typeof (string));
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dt.Columns.Add("COLUMN_KEY", typeof (string));
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dt.Columns.Add("EXTRA", typeof (string));
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dt.Columns.Add("PRIVILEGES", typeof (string));
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dt.Columns.Add("COLUMN_COMMENT", typeof (string));
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// we don't allow restricting on table type here
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string columnName = null;
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if (restrictions != null && restrictions.Length == 4)
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{
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columnName = restrictions[3];
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restrictions[3] = null;
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}
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DataTable tables = GetTables(restrictions);
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foreach (DataRow row in tables.Rows)
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LoadTableColumns(dt, row["TABLE_SCHEMA"].ToString(),
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row["TABLE_NAME"].ToString(), columnName);
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return dt;
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}
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private void LoadTableColumns(DataTable dt, string schema,
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string tableName, string columnRestriction)
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{
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string sql = String.Format("SHOW FULL COLUMNS FROM `{0}`.`{1}`",
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schema, tableName);
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MySqlCommand cmd = new MySqlCommand(sql, connection);
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int pos = 1;
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using (MySqlDataReader reader = cmd.ExecuteReader())
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{
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while (reader.Read())
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{
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string colName = reader.GetString(0);
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if (columnRestriction != null && colName != columnRestriction)
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continue;
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DataRow row = dt.NewRow();
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row["TABLE_CATALOG"] = DBNull.Value;
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row["TABLE_SCHEMA"] = schema;
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row["TABLE_NAME"] = tableName;
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row["COLUMN_NAME"] = colName;
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row["ORDINAL_POSITION"] = pos++;
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row["COLUMN_DEFAULT"] = reader.GetValue(5);
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row["IS_NULLABLE"] = reader.GetString(3);
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row["DATA_TYPE"] = reader.GetString(1);
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row["CHARACTER_MAXIMUM_LENGTH"] = DBNull.Value;
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row["CHARACTER_OCTET_LENGTH"] = DBNull.Value;
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row["NUMERIC_PRECISION"] = DBNull.Value;
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row["NUMERIC_SCALE"] = DBNull.Value;
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row["CHARACTER_SET_NAME"] = reader.GetValue(2);
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row["COLLATION_NAME"] = row["CHARACTER_SET_NAME"];
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row["COLUMN_TYPE"] = reader.GetString(1);
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row["COLUMN_KEY"] = reader.GetString(4);
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row["EXTRA"] = reader.GetString(6);
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row["PRIVILEGES"] = reader.GetString(7);
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row["COLUMN_COMMENT"] = reader.GetString(8);
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ParseColumnRow(row);
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dt.Rows.Add(row);
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}
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}
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}
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private static void ParseColumnRow(DataRow row)
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{
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// first parse the character set name
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string charset = row["CHARACTER_SET_NAME"].ToString();
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int index = charset.IndexOf('_');
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if (index != -1)
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row["CHARACTER_SET_NAME"] = charset.Substring(0, index);
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// now parse the data type
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string dataType = row["DATA_TYPE"].ToString();
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index = dataType.IndexOf('(');
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if (index == -1)
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return;
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row["DATA_TYPE"] = dataType.Substring(0, index);
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int stop = dataType.IndexOf(')', index);
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string dataLen = dataType.Substring(index + 1, stop - (index + 1));
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string lowerType = row["DATA_TYPE"].ToString().ToLower();
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if (lowerType == "char" || lowerType == "varchar")
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row["CHARACTER_MAXIMUM_LENGTH"] = dataLen;
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else if (lowerType == "real" || lowerType == "decimal")
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{
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string[] lenparts = dataLen.Split(new char[] {','});
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row["NUMERIC_PRECISION"] = lenparts[0];
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if (lenparts.Length == 2)
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row["NUMERIC_SCALE"] = lenparts[1];
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}
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}
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public virtual DataTable GetIndexes(string[] restrictions)
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{
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DataTable dt = new DataTable("Indexes");
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dt.Columns.Add("INDEX_CATALOG", typeof (string));
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dt.Columns.Add("INDEX_SCHEMA", typeof (string));
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dt.Columns.Add("INDEX_NAME", typeof (string));
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dt.Columns.Add("TABLE_NAME", typeof (string));
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dt.Columns.Add("UNIQUE", typeof (bool));
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dt.Columns.Add("PRIMARY", typeof (bool));
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dt.Columns.Add("TYPE", typeof(string));
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dt.Columns.Add("COMMENT", typeof(string));
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// Get the list of tables first
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int max = restrictions == null ? 4 : restrictions.Length;
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string[] tableRestrictions = new string[Math.Max(max, 4)];
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if (restrictions != null)
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restrictions.CopyTo(tableRestrictions, 0);
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tableRestrictions[3] = "BASE TABLE";
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DataTable tables = GetTables(tableRestrictions);
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foreach (DataRow table in tables.Rows)
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{
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string sql = String.Format("SHOW INDEX FROM `{0}`.`{1}`",
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MySqlHelper.DoubleQuoteString((string)table["TABLE_SCHEMA"]),
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MySqlHelper.DoubleQuoteString((string)table["TABLE_NAME"]));
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MySqlDataAdapter da = new MySqlDataAdapter(sql, connection);
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DataTable indexes = new DataTable();
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da.Fill(indexes);
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foreach (DataRow index in indexes.Rows)
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{
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long seq_index = (long) index["SEQ_IN_INDEX"];
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if (seq_index != 1) continue;
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if (restrictions != null && restrictions.Length == 4 &&
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restrictions[3] != null &&
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!index["KEY_NAME"].Equals(restrictions[3])) continue;
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DataRow row = dt.NewRow();
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row["INDEX_CATALOG"] = null;
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row["INDEX_SCHEMA"] = table["TABLE_SCHEMA"];
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row["INDEX_NAME"] = index["KEY_NAME"];
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row["TABLE_NAME"] = index["TABLE"];
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row["UNIQUE"] = (long) index["NON_UNIQUE"] == 0;
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row["PRIMARY"] = index["KEY_NAME"].Equals("PRIMARY");
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row["TYPE"] = index["INDEX_TYPE"];
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row["COMMENT"] = index["COMMENT"];
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dt.Rows.Add(row);
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||
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}
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||
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}
|
||
|
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return dt;
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||
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}
|
||
|
|
|
||
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public virtual DataTable GetIndexColumns(string[] restrictions)
|
||
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{
|
||
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DataTable dt = new DataTable("IndexColumns");
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dt.Columns.Add("INDEX_CATALOG", typeof (string));
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dt.Columns.Add("INDEX_SCHEMA", typeof (string));
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dt.Columns.Add("INDEX_NAME", typeof (string));
|
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dt.Columns.Add("TABLE_NAME", typeof (string));
|
||
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dt.Columns.Add("COLUMN_NAME", typeof (string));
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dt.Columns.Add("ORDINAL_POSITION", typeof (int));
|
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dt.Columns.Add("SORT_ORDER", typeof(string));
|
||
|
|
|
||
|
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int max = restrictions == null ? 4 : restrictions.Length;
|
||
|
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string[] tableRestrictions = new string[Math.Max(max, 4)];
|
||
|
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if (restrictions != null)
|
||
|
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restrictions.CopyTo(tableRestrictions, 0);
|
||
|
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tableRestrictions[3] = "BASE TABLE";
|
||
|
|
DataTable tables = GetTables(tableRestrictions);
|
||
|
|
|
||
|
|
foreach (DataRow table in tables.Rows)
|
||
|
|
{
|
||
|
|
string sql = String.Format("SHOW INDEX FROM `{0}`.`{1}`",
|
||
|
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table["TABLE_SCHEMA"], table["TABLE_NAME"]);
|
||
|
|
MySqlCommand cmd = new MySqlCommand(sql, connection);
|
||
|
|
using (MySqlDataReader reader = cmd.ExecuteReader())
|
||
|
|
{
|
||
|
|
while (reader.Read())
|
||
|
|
{
|
||
|
|
string key_name = GetString(reader, reader.GetOrdinal("KEY_NAME"));
|
||
|
|
string col_name = GetString(reader, reader.GetOrdinal("COLUMN_NAME"));
|
||
|
|
|
||
|
|
if (restrictions != null)
|
||
|
|
{
|
||
|
|
if (restrictions.Length >= 4 && restrictions[3] != null &&
|
||
|
|
key_name != restrictions[3]) continue;
|
||
|
|
if (restrictions.Length >= 5 && restrictions[4] != null &&
|
||
|
|
col_name != restrictions[4]) continue;
|
||
|
|
}
|
||
|
|
DataRow row = dt.NewRow();
|
||
|
|
row["INDEX_CATALOG"] = null;
|
||
|
|
row["INDEX_SCHEMA"] = table["TABLE_SCHEMA"];
|
||
|
|
row["INDEX_NAME"] = key_name;
|
||
|
|
row["TABLE_NAME"] = GetString(reader, reader.GetOrdinal("TABLE"));
|
||
|
|
row["COLUMN_NAME"] = col_name;
|
||
|
|
row["ORDINAL_POSITION"] = reader.GetValue(reader.GetOrdinal("SEQ_IN_INDEX"));
|
||
|
|
row["SORT_ORDER"] = reader.GetString("COLLATION");
|
||
|
|
dt.Rows.Add(row);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual DataTable GetForeignKeys(string[] restrictions)
|
||
|
|
{
|
||
|
|
DataTable dt = new DataTable("Foreign Keys");
|
||
|
|
dt.Columns.Add("CONSTRAINT_CATALOG", typeof (string));
|
||
|
|
dt.Columns.Add("CONSTRAINT_SCHEMA", typeof (string));
|
||
|
|
dt.Columns.Add("CONSTRAINT_NAME", typeof (string));
|
||
|
|
dt.Columns.Add("TABLE_CATALOG", typeof(string));
|
||
|
|
dt.Columns.Add("TABLE_SCHEMA", typeof (string));
|
||
|
|
dt.Columns.Add("TABLE_NAME", typeof (string));
|
||
|
|
dt.Columns.Add("MATCH_OPTION", typeof(string));
|
||
|
|
dt.Columns.Add("UPDATE_RULE", typeof(string));
|
||
|
|
dt.Columns.Add("DELETE_RULE", typeof(string));
|
||
|
|
dt.Columns.Add("REFERENCED_TABLE_CATALOG", typeof (string));
|
||
|
|
dt.Columns.Add("REFERENCED_TABLE_SCHEMA", typeof (string));
|
||
|
|
dt.Columns.Add("REFERENCED_TABLE_NAME", typeof (string));
|
||
|
|
|
||
|
|
// first we use our restrictions to get a list of tables that should be
|
||
|
|
// consulted. We save the keyname restriction since GetTables doesn't
|
||
|
|
// understand that.
|
||
|
|
string keyName = null;
|
||
|
|
if (restrictions != null && restrictions.Length >= 4)
|
||
|
|
{
|
||
|
|
keyName = restrictions[3];
|
||
|
|
restrictions[3] = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
DataTable tables = GetTables(restrictions);
|
||
|
|
|
||
|
|
// now for each table retrieved, we call our helper function to
|
||
|
|
// parse it's foreign keys
|
||
|
|
foreach (DataRow table in tables.Rows)
|
||
|
|
GetForeignKeysOnTable(dt, table, keyName, false);
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual DataTable GetForeignKeyColumns(string[] restrictions)
|
||
|
|
{
|
||
|
|
DataTable dt = new DataTable("Foreign Keys");
|
||
|
|
dt.Columns.Add("CONSTRAINT_CATALOG", typeof(string));
|
||
|
|
dt.Columns.Add("CONSTRAINT_SCHEMA", typeof(string));
|
||
|
|
dt.Columns.Add("CONSTRAINT_NAME", typeof(string));
|
||
|
|
dt.Columns.Add("TABLE_CATALOG", typeof(string));
|
||
|
|
dt.Columns.Add("TABLE_SCHEMA", typeof(string));
|
||
|
|
dt.Columns.Add("TABLE_NAME", typeof(string));
|
||
|
|
dt.Columns.Add("COLUMN_NAME", typeof(string));
|
||
|
|
dt.Columns.Add("ORDINAL_POSITION", typeof(int));
|
||
|
|
dt.Columns.Add("REFERENCED_TABLE_CATALOG", typeof(string));
|
||
|
|
dt.Columns.Add("REFERENCED_TABLE_SCHEMA", typeof(string));
|
||
|
|
dt.Columns.Add("REFERENCED_TABLE_NAME", typeof(string));
|
||
|
|
dt.Columns.Add("REFERENCED_COLUMN_NAME", typeof(string));
|
||
|
|
|
||
|
|
// first we use our restrictions to get a list of tables that should be
|
||
|
|
// consulted. We save the keyname restriction since GetTables doesn't
|
||
|
|
// understand that.
|
||
|
|
string keyName = null;
|
||
|
|
if (restrictions != null && restrictions.Length >= 4)
|
||
|
|
{
|
||
|
|
keyName = restrictions[3];
|
||
|
|
restrictions[3] = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
DataTable tables = GetTables(restrictions);
|
||
|
|
|
||
|
|
// now for each table retrieved, we call our helper function to
|
||
|
|
// parse it's foreign keys
|
||
|
|
foreach (DataRow table in tables.Rows)
|
||
|
|
GetForeignKeysOnTable(dt, table, keyName, true);
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
private string GetSqlMode()
|
||
|
|
{
|
||
|
|
MySqlCommand cmd = new MySqlCommand("SELECT @@SQL_MODE", connection);
|
||
|
|
return cmd.ExecuteScalar().ToString();
|
||
|
|
}
|
||
|
|
|
||
|
|
#region Foreign Key routines
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// GetForeignKeysOnTable retrieves the foreign keys on the given table.
|
||
|
|
/// Since MySQL supports foreign keys on versions prior to 5.0, we can't use
|
||
|
|
/// information schema. MySQL also does not include any type of SHOW command
|
||
|
|
/// for foreign keys so we have to resort to use SHOW CREATE TABLE and parsing
|
||
|
|
/// the output.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="fkTable">The table to store the key info in.</param>
|
||
|
|
/// <param name="tableToParse">The table to get the foeign key info for.</param>
|
||
|
|
/// <param name="filterName">Only get foreign keys that match this name.</param>
|
||
|
|
/// <param name="includeColumns">Should column information be included in the table.</param>
|
||
|
|
private void GetForeignKeysOnTable(DataTable fkTable, DataRow tableToParse,
|
||
|
|
string filterName, bool includeColumns)
|
||
|
|
{
|
||
|
|
string sqlMode = GetSqlMode();
|
||
|
|
|
||
|
|
if (filterName != null)
|
||
|
|
filterName = filterName.ToLower(CultureInfo.InvariantCulture);
|
||
|
|
|
||
|
|
string sql = string.Format("SHOW CREATE TABLE `{0}`.`{1}`",
|
||
|
|
tableToParse["TABLE_SCHEMA"], tableToParse["TABLE_NAME"]);
|
||
|
|
string lowerBody = null, body = null;
|
||
|
|
MySqlCommand cmd = new MySqlCommand(sql, connection);
|
||
|
|
using (MySqlDataReader reader = cmd.ExecuteReader())
|
||
|
|
{
|
||
|
|
reader.Read();
|
||
|
|
body = reader.GetString(1);
|
||
|
|
lowerBody = body.ToLower(CultureInfo.InvariantCulture);
|
||
|
|
}
|
||
|
|
|
||
|
|
MySqlTokenizer tokenizer = new MySqlTokenizer(lowerBody);
|
||
|
|
tokenizer.AnsiQuotes = sqlMode.IndexOf("ANSI_QUOTES") != -1;
|
||
|
|
tokenizer.BackslashEscapes = sqlMode.IndexOf("NO_BACKSLASH_ESCAPES") != -1;
|
||
|
|
|
||
|
|
while (true)
|
||
|
|
{
|
||
|
|
string token = tokenizer.NextToken();
|
||
|
|
// look for a starting contraint
|
||
|
|
while (token != null && (token != "constraint" || tokenizer.Quoted))
|
||
|
|
token = tokenizer.NextToken();
|
||
|
|
if (token == null) break;
|
||
|
|
|
||
|
|
ParseConstraint(fkTable, tableToParse, tokenizer, includeColumns);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private static void ParseConstraint(DataTable fkTable, DataRow table,
|
||
|
|
MySqlTokenizer tokenizer, bool includeColumns)
|
||
|
|
{
|
||
|
|
string name = tokenizer.NextToken();
|
||
|
|
DataRow row = fkTable.NewRow();
|
||
|
|
|
||
|
|
// make sure this constraint is a FK
|
||
|
|
string token = tokenizer.NextToken();
|
||
|
|
if (token != "foreign" || tokenizer.Quoted)
|
||
|
|
return;
|
||
|
|
tokenizer.NextToken(); // read off the 'KEY' symbol
|
||
|
|
tokenizer.NextToken(); // read off the '(' symbol
|
||
|
|
|
||
|
|
row["CONSTRAINT_CATALOG"] = table["TABLE_CATALOG"];
|
||
|
|
row["CONSTRAINT_SCHEMA"] = table["TABLE_SCHEMA"];
|
||
|
|
row["TABLE_CATALOG"] = table["TABLE_CATALOG"];
|
||
|
|
row["TABLE_SCHEMA"] = table["TABLE_SCHEMA"];
|
||
|
|
row["TABLE_NAME"] = table["TABLE_NAME"];
|
||
|
|
row["REFERENCED_TABLE_CATALOG"] = null;
|
||
|
|
row["CONSTRAINT_NAME"] = name.Trim(new char[] { '\'', '`' });
|
||
|
|
|
||
|
|
ArrayList srcColumns = includeColumns ? ParseColumns(tokenizer) : null;
|
||
|
|
|
||
|
|
// now look for the references section
|
||
|
|
while (token != "references" || tokenizer.Quoted)
|
||
|
|
token = tokenizer.NextToken();
|
||
|
|
string target1 = tokenizer.NextToken();
|
||
|
|
string target2 = tokenizer.NextToken();
|
||
|
|
if (target2.StartsWith("."))
|
||
|
|
{
|
||
|
|
row["REFERENCED_TABLE_SCHEMA"] = target1;
|
||
|
|
row["REFERENCED_TABLE_NAME"] = target2.Substring(1).Trim(new char[] { '\'', '`' });
|
||
|
|
tokenizer.NextToken(); // read off the '('
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
row["REFERENCED_TABLE_SCHEMA"] = table["TABLE_SCHEMA"];
|
||
|
|
row["REFERENCED_TABLE_NAME"] = target1.Substring(1).Trim(new char[] { '\'', '`' }); ;
|
||
|
|
}
|
||
|
|
|
||
|
|
// if we are supposed to include columns, read the target columns
|
||
|
|
ArrayList targetColumns = includeColumns ? ParseColumns(tokenizer) : null;
|
||
|
|
|
||
|
|
if (includeColumns)
|
||
|
|
ProcessColumns(fkTable, row, srcColumns, targetColumns);
|
||
|
|
else
|
||
|
|
fkTable.Rows.Add(row);
|
||
|
|
}
|
||
|
|
|
||
|
|
private static ArrayList ParseColumns(MySqlTokenizer tokenizer)
|
||
|
|
{
|
||
|
|
ArrayList sc = new ArrayList();
|
||
|
|
string token = tokenizer.NextToken();
|
||
|
|
while (token != ")")
|
||
|
|
{
|
||
|
|
if (token != ",")
|
||
|
|
sc.Add(token);
|
||
|
|
token = tokenizer.NextToken();
|
||
|
|
}
|
||
|
|
return sc;
|
||
|
|
}
|
||
|
|
|
||
|
|
private static void ProcessColumns(DataTable fkTable, DataRow row,
|
||
|
|
ArrayList srcColumns, ArrayList targetColumns)
|
||
|
|
{
|
||
|
|
for (int i = 0; i < srcColumns.Count; i++)
|
||
|
|
{
|
||
|
|
DataRow newRow = fkTable.NewRow();
|
||
|
|
newRow.ItemArray = row.ItemArray;
|
||
|
|
newRow["COLUMN_NAME"] = (string)srcColumns[i];
|
||
|
|
newRow["ORDINAL_POSITION"] = i;
|
||
|
|
newRow["REFERENCED_COLUMN_NAME"] = (string)targetColumns[i];
|
||
|
|
fkTable.Rows.Add(newRow);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endregion
|
||
|
|
|
||
|
|
public virtual DataTable GetUsers(string[] restrictions)
|
||
|
|
{
|
||
|
|
StringBuilder sb = new StringBuilder("SELECT Host, User FROM mysql.user");
|
||
|
|
if (restrictions != null && restrictions.Length > 0)
|
||
|
|
sb.AppendFormat(CultureInfo.InvariantCulture, " WHERE User LIKE '{0}'", restrictions[0]);
|
||
|
|
|
||
|
|
MySqlDataAdapter da = new MySqlDataAdapter(sb.ToString(), connection);
|
||
|
|
DataTable dt = new DataTable();
|
||
|
|
da.Fill(dt);
|
||
|
|
dt.TableName = "Users";
|
||
|
|
dt.Columns[0].ColumnName = "HOST";
|
||
|
|
dt.Columns[1].ColumnName = "USERNAME";
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual DataTable GetProcedures(string[] restrictions)
|
||
|
|
{
|
||
|
|
DataTable dt = new DataTable("Procedures");
|
||
|
|
dt.Columns.Add(new DataColumn("SPECIFIC_NAME", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("ROUTINE_CATALOG", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("ROUTINE_SCHEMA", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("ROUTINE_NAME", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("ROUTINE_TYPE", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("DTD_IDENTIFIER", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("ROUTINE_BODY", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("ROUTINE_DEFINITION", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("EXTERNAL_NAME", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("EXTERNAL_LANGUAGE", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("PARAMETER_STYLE", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("IS_DETERMINISTIC", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("SQL_DATA_ACCESS", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("SQL_PATH", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("SECURITY_TYPE", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("CREATED", typeof(DateTime)));
|
||
|
|
dt.Columns.Add(new DataColumn("LAST_ALTERED", typeof(DateTime)));
|
||
|
|
dt.Columns.Add(new DataColumn("SQL_MODE", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("ROUTINE_COMMENT", typeof(string)));
|
||
|
|
dt.Columns.Add(new DataColumn("DEFINER", typeof(string)));
|
||
|
|
|
||
|
|
StringBuilder sql = new StringBuilder("SELECT * FROM mysql.proc WHERE 1=1");
|
||
|
|
if (restrictions != null)
|
||
|
|
{
|
||
|
|
if (restrictions.Length >= 2 && restrictions[1] != null)
|
||
|
|
sql.AppendFormat(CultureInfo.InvariantCulture,
|
||
|
|
" AND db LIKE '{0}'", restrictions[1]);
|
||
|
|
if (restrictions.Length >= 3 && restrictions[2] != null)
|
||
|
|
sql.AppendFormat(CultureInfo.InvariantCulture,
|
||
|
|
" AND name LIKE '{0}'", restrictions[2]);
|
||
|
|
if (restrictions.Length >= 4 && restrictions[3] != null)
|
||
|
|
sql.AppendFormat(CultureInfo.InvariantCulture,
|
||
|
|
" AND type LIKE '{0}'", restrictions[3]);
|
||
|
|
}
|
||
|
|
|
||
|
|
MySqlCommand cmd = new MySqlCommand(sql.ToString(), connection);
|
||
|
|
using (MySqlDataReader reader = cmd.ExecuteReader())
|
||
|
|
{
|
||
|
|
while (reader.Read())
|
||
|
|
{
|
||
|
|
DataRow row = dt.NewRow();
|
||
|
|
row["SPECIFIC_NAME"] = reader.GetString("specific_name");
|
||
|
|
row["ROUTINE_CATALOG"] = DBNull.Value;
|
||
|
|
row["ROUTINE_SCHEMA"] = reader.GetString("db");
|
||
|
|
row["ROUTINE_NAME"] = reader.GetString("name");
|
||
|
|
string routineType = reader.GetString("type");
|
||
|
|
row["ROUTINE_TYPE"] = routineType;
|
||
|
|
row["DTD_IDENTIFIER"] = routineType.ToLower(CultureInfo.InvariantCulture) == "function" ?
|
||
|
|
(object)reader.GetString("returns") : DBNull.Value;
|
||
|
|
row["ROUTINE_BODY"] = "SQL";
|
||
|
|
row["ROUTINE_DEFINITION"] = reader.GetString("body");
|
||
|
|
row["EXTERNAL_NAME"] = DBNull.Value;
|
||
|
|
row["EXTERNAL_LANGUAGE"] = DBNull.Value;
|
||
|
|
row["PARAMETER_STYLE"] = "SQL";
|
||
|
|
row["IS_DETERMINISTIC"] = reader.GetString("is_deterministic");
|
||
|
|
row["SQL_DATA_ACCESS"] = reader.GetString("sql_data_access");
|
||
|
|
row["SQL_PATH"] = DBNull.Value;
|
||
|
|
row["SECURITY_TYPE"] = reader.GetString("security_type");
|
||
|
|
row["CREATED"] = reader.GetDateTime("created");
|
||
|
|
row["LAST_ALTERED"] = reader.GetDateTime("modified");
|
||
|
|
row["SQL_MODE"] = reader.GetString("sql_mode");
|
||
|
|
row["ROUTINE_COMMENT"] = reader.GetString("comment");
|
||
|
|
row["DEFINER"] = reader.GetString("definer");
|
||
|
|
dt.Rows.Add(row);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected virtual DataTable GetCollections()
|
||
|
|
{
|
||
|
|
object[][] collections = new object[][]
|
||
|
|
{
|
||
|
|
new object[] {"MetaDataCollections", 0, 0},
|
||
|
|
new object[] {"DataSourceInformation", 0, 0},
|
||
|
|
new object[] {"DataTypes", 0, 0},
|
||
|
|
new object[] {"Restrictions", 0, 0},
|
||
|
|
new object[] {"ReservedWords", 0, 0},
|
||
|
|
new object[] {"Databases", 1, 1},
|
||
|
|
new object[] {"Tables", 4, 2},
|
||
|
|
new object[] {"Columns", 4, 4},
|
||
|
|
new object[] {"Users", 1, 1},
|
||
|
|
new object[] {"Foreign Keys", 4, 3},
|
||
|
|
new object[] {"IndexColumns", 5, 4},
|
||
|
|
new object[] {"Indexes", 4, 3},
|
||
|
|
new object[] {"Foreign Key Columns", 4, 3},
|
||
|
|
new object[] {"UDF", 1, 1}
|
||
|
|
};
|
||
|
|
|
||
|
|
DataTable dt = new DataTable("MetaDataCollections");
|
||
|
|
dt.Columns.Add(new DataColumn("CollectionName", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("NumberOfRestrictions", typeof(int)));
|
||
|
|
dt.Columns.Add(new DataColumn("NumberOfIdentifierParts", typeof (int)));
|
||
|
|
|
||
|
|
FillTable(dt, collections);
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
private DataTable GetDataSourceInformation()
|
||
|
|
{
|
||
|
|
#if CF
|
||
|
|
throw new NotSupportedException();
|
||
|
|
#else
|
||
|
|
DataTable dt = new DataTable("DataSourceInformation");
|
||
|
|
dt.Columns.Add("CompositeIdentifierSeparatorPattern", typeof (string));
|
||
|
|
dt.Columns.Add("DataSourceProductName", typeof (string));
|
||
|
|
dt.Columns.Add("DataSourceProductVersion", typeof (string));
|
||
|
|
dt.Columns.Add("DataSourceProductVersionNormalized", typeof (string));
|
||
|
|
dt.Columns.Add("GroupByBehavior", typeof (GroupByBehavior));
|
||
|
|
dt.Columns.Add("IdentifierPattern", typeof (string));
|
||
|
|
dt.Columns.Add("IdentifierCase", typeof (IdentifierCase));
|
||
|
|
dt.Columns.Add("OrderByColumnsInSelect", typeof (bool));
|
||
|
|
dt.Columns.Add("ParameterMarkerFormat", typeof (string));
|
||
|
|
dt.Columns.Add("ParameterMarkerPattern", typeof (string));
|
||
|
|
dt.Columns.Add("ParameterNameMaxLength", typeof (int));
|
||
|
|
dt.Columns.Add("ParameterNamePattern", typeof (string));
|
||
|
|
dt.Columns.Add("QuotedIdentifierPattern", typeof (string));
|
||
|
|
dt.Columns.Add("QuotedIdentifierCase", typeof (IdentifierCase));
|
||
|
|
dt.Columns.Add("StatementSeparatorPattern", typeof (string));
|
||
|
|
dt.Columns.Add("StringLiteralPattern", typeof (string));
|
||
|
|
dt.Columns.Add("SupportedJoinOperators", typeof (SupportedJoinOperators));
|
||
|
|
|
||
|
|
DBVersion v = connection.driver.Version;
|
||
|
|
string ver = String.Format("{0:0}.{1:0}.{2:0}",
|
||
|
|
v.Major, v.Minor, v.Build);
|
||
|
|
|
||
|
|
DataRow row = dt.NewRow();
|
||
|
|
row["CompositeIdentifierSeparatorPattern"] = "\\.";
|
||
|
|
row["DataSourceProductName"] = "MySQL";
|
||
|
|
row["DataSourceProductVersion"] = connection.ServerVersion;
|
||
|
|
row["DataSourceProductVersionNormalized"] = ver;
|
||
|
|
row["GroupByBehavior"] = GroupByBehavior.Unrelated;
|
||
|
|
row["IdentifierPattern"] =
|
||
|
|
@"(^\`\p{Lo}\p{Lu}\p{Ll}_@#][\p{Lo}\p{Lu}\p{Ll}\p{Nd}@$#_]*$)|(^\`[^\`\0]|\`\`+\`$)|(^\"" + [^\""\0]|\""\""+\""$)";
|
||
|
|
row["IdentifierCase"] = IdentifierCase.Insensitive;
|
||
|
|
row["OrderByColumnsInSelect"] = false;
|
||
|
|
row["ParameterMarkerFormat"] = "{0}";
|
||
|
|
row["ParameterMarkerPattern"] = "(@[A-Za-z0-9_$#]*)";
|
||
|
|
row["ParameterNameMaxLength"] = 128;
|
||
|
|
row["ParameterNamePattern"] =
|
||
|
|
@"^[\p{Lo}\p{Lu}\p{Ll}\p{Lm}_@#][\p{Lo}\p{Lu}\p{Ll}\p{Lm}\p{Nd}\uff3f_@#\$]*(?=\s+|$)";
|
||
|
|
row["QuotedIdentifierPattern"] = @"(([^\`]|\`\`)*)";
|
||
|
|
row["QuotedIdentifierCase"] = IdentifierCase.Sensitive;
|
||
|
|
row["StatementSeparatorPattern"] = ";";
|
||
|
|
row["StringLiteralPattern"] = "'(([^']|'')*)'";
|
||
|
|
row["SupportedJoinOperators"] = 15;
|
||
|
|
dt.Rows.Add(row);
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
private static DataTable GetDataTypes()
|
||
|
|
{
|
||
|
|
DataTable dt = new DataTable("DataTypes");
|
||
|
|
dt.Columns.Add(new DataColumn("TypeName", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("ProviderDbType", typeof (int)));
|
||
|
|
dt.Columns.Add(new DataColumn("ColumnSize", typeof (long)));
|
||
|
|
dt.Columns.Add(new DataColumn("CreateFormat", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("CreateParameters", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("DataType", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsAutoincrementable", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsBestMatch", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsCaseSensitive", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsFixedLength", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsFixedPrecisionScale", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsLong", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsNullable", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsSearchable", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsSearchableWithLike", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsUnsigned", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("MaximumScale", typeof (short)));
|
||
|
|
dt.Columns.Add(new DataColumn("MinimumScale", typeof (short)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsConcurrencyType", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("IsLiteralSupported", typeof (bool)));
|
||
|
|
dt.Columns.Add(new DataColumn("LiteralPrefix", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("LiteralSuffix", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("NativeDataType", typeof (string)));
|
||
|
|
|
||
|
|
// have each one of the types contribute to the datatypes collection
|
||
|
|
MySqlBit.SetDSInfo(dt);
|
||
|
|
MySqlBinary.SetDSInfo(dt);
|
||
|
|
MySqlDateTime.SetDSInfo(dt);
|
||
|
|
MySqlTimeSpan.SetDSInfo(dt);
|
||
|
|
MySqlString.SetDSInfo(dt);
|
||
|
|
MySqlDouble.SetDSInfo(dt);
|
||
|
|
MySqlSingle.SetDSInfo(dt);
|
||
|
|
MySqlByte.SetDSInfo(dt);
|
||
|
|
MySqlInt16.SetDSInfo(dt);
|
||
|
|
MySqlInt32.SetDSInfo(dt);
|
||
|
|
MySqlInt64.SetDSInfo(dt);
|
||
|
|
MySqlDecimal.SetDSInfo(dt);
|
||
|
|
MySqlUByte.SetDSInfo(dt);
|
||
|
|
MySqlUInt16.SetDSInfo(dt);
|
||
|
|
MySqlUInt32.SetDSInfo(dt);
|
||
|
|
MySqlUInt64.SetDSInfo(dt);
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected virtual DataTable GetRestrictions()
|
||
|
|
{
|
||
|
|
object[][] restrictions = new object[][]
|
||
|
|
{
|
||
|
|
new object[] {"Users", "Name", "", 0},
|
||
|
|
new object[] {"Databases", "Name", "", 0},
|
||
|
|
new object[] {"Tables", "Database", "", 0},
|
||
|
|
new object[] {"Tables", "Schema", "", 1},
|
||
|
|
new object[] {"Tables", "Table", "", 2},
|
||
|
|
new object[] {"Tables", "TableType", "", 3},
|
||
|
|
new object[] {"Columns", "Database", "", 0},
|
||
|
|
new object[] {"Columns", "Schema", "", 1},
|
||
|
|
new object[] {"Columns", "Table", "", 2},
|
||
|
|
new object[] {"Columns", "Column", "", 3},
|
||
|
|
new object[] {"Indexes", "Database", "", 0},
|
||
|
|
new object[] {"Indexes", "Schema", "", 1},
|
||
|
|
new object[] {"Indexes", "Table", "", 2},
|
||
|
|
new object[] {"Indexes", "Name", "", 3},
|
||
|
|
new object[] {"IndexColumns", "Database", "", 0},
|
||
|
|
new object[] {"IndexColumns", "Schema", "", 1},
|
||
|
|
new object[] {"IndexColumns", "Table", "", 2},
|
||
|
|
new object[] {"IndexColumns", "ConstraintName", "", 3},
|
||
|
|
new object[] {"IndexColumns", "Column", "", 4},
|
||
|
|
new object[] {"Foreign Keys", "Database", "", 0},
|
||
|
|
new object[] {"Foreign Keys", "Schema", "", 1},
|
||
|
|
new object[] {"Foreign Keys", "Table", "", 2},
|
||
|
|
new object[] {"Foreign Keys", "Constraint Name", "", 3},
|
||
|
|
new object[] {"Foreign Key Columns", "Catalog", "", 0},
|
||
|
|
new object[] {"Foreign Key Columns", "Schema", "", 1},
|
||
|
|
new object[] {"Foreign Key Columns", "Table", "", 2},
|
||
|
|
new object[] {"Foreign Key Columns", "Constraint Name", "", 3},
|
||
|
|
new object[] {"UDF", "Name", "", 0}
|
||
|
|
};
|
||
|
|
|
||
|
|
DataTable dt = new DataTable("Restrictions");
|
||
|
|
dt.Columns.Add(new DataColumn("CollectionName", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("RestrictionName", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("RestrictionDefault", typeof (string)));
|
||
|
|
dt.Columns.Add(new DataColumn("RestrictionNumber", typeof (int)));
|
||
|
|
|
||
|
|
FillTable(dt, restrictions);
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
private static DataTable GetReservedWords()
|
||
|
|
{
|
||
|
|
DataTable dt = new DataTable("ReservedWords");
|
||
|
|
dt.Columns.Add(new DataColumn(DbMetaDataColumnNames.ReservedWord, typeof(string)));
|
||
|
|
|
||
|
|
Stream str = Assembly.GetExecutingAssembly().GetManifestResourceStream(
|
||
|
|
"MySql.Data.MySqlClient.Properties.ReservedWords.txt");
|
||
|
|
StreamReader sr = new StreamReader(str);
|
||
|
|
string line = sr.ReadLine();
|
||
|
|
while (line != null)
|
||
|
|
{
|
||
|
|
string[] keywords = line.Split(new char[] {' '});
|
||
|
|
foreach (string s in keywords)
|
||
|
|
{
|
||
|
|
if (String.IsNullOrEmpty(s)) continue;
|
||
|
|
DataRow row = dt.NewRow();
|
||
|
|
row[0] = s;
|
||
|
|
dt.Rows.Add(row);
|
||
|
|
}
|
||
|
|
line = sr.ReadLine();
|
||
|
|
}
|
||
|
|
sr.Close();
|
||
|
|
str.Close();
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected static void FillTable(DataTable dt, object[][] data)
|
||
|
|
{
|
||
|
|
foreach (object[] dataItem in data)
|
||
|
|
{
|
||
|
|
DataRow row = dt.NewRow();
|
||
|
|
for (int i = 0; i < dataItem.Length; i++)
|
||
|
|
row[i] = dataItem[i];
|
||
|
|
dt.Rows.Add(row);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void FindTables(DataTable schemaTable, string[] restrictions)
|
||
|
|
{
|
||
|
|
StringBuilder sql = new StringBuilder();
|
||
|
|
StringBuilder where = new StringBuilder();
|
||
|
|
sql.AppendFormat(CultureInfo.InvariantCulture,
|
||
|
|
"SHOW TABLE STATUS FROM `{0}`", restrictions[1]);
|
||
|
|
if (restrictions != null && restrictions.Length >= 3 &&
|
||
|
|
restrictions[2] != null)
|
||
|
|
where.AppendFormat(CultureInfo.InvariantCulture,
|
||
|
|
" LIKE '{0}'", restrictions[2]);
|
||
|
|
sql.Append(where.ToString());
|
||
|
|
|
||
|
|
string table_type = restrictions[1].ToLower() == "information_schema"
|
||
|
|
?
|
||
|
|
"SYSTEM VIEW"
|
||
|
|
: "BASE TABLE";
|
||
|
|
|
||
|
|
MySqlCommand cmd = new MySqlCommand(sql.ToString(), connection);
|
||
|
|
using (MySqlDataReader reader = cmd.ExecuteReader())
|
||
|
|
{
|
||
|
|
while (reader.Read())
|
||
|
|
{
|
||
|
|
DataRow row = schemaTable.NewRow();
|
||
|
|
row["TABLE_CATALOG"] = null;
|
||
|
|
row["TABLE_SCHEMA"] = restrictions[1];
|
||
|
|
row["TABLE_NAME"] = reader.GetString(0);
|
||
|
|
row["TABLE_TYPE"] = table_type;
|
||
|
|
row["ENGINE"] = GetString(reader, 1);
|
||
|
|
row["VERSION"] = reader.GetValue(2);
|
||
|
|
row["ROW_FORMAT"] = GetString(reader, 3);
|
||
|
|
row["TABLE_ROWS"] = reader.GetValue(4);
|
||
|
|
row["AVG_ROW_LENGTH"] = reader.GetValue(5);
|
||
|
|
row["DATA_LENGTH"] = reader.GetValue(6);
|
||
|
|
row["MAX_DATA_LENGTH"] = reader.GetValue(7);
|
||
|
|
row["INDEX_LENGTH"] = reader.GetValue(8);
|
||
|
|
row["DATA_FREE"] = reader.GetValue(9);
|
||
|
|
row["AUTO_INCREMENT"] = reader.GetValue(10);
|
||
|
|
row["CREATE_TIME"] = reader.GetValue(11);
|
||
|
|
row["UPDATE_TIME"] = reader.GetValue(12);
|
||
|
|
row["CHECK_TIME"] = reader.GetValue(13);
|
||
|
|
row["TABLE_COLLATION"] = GetString(reader, 14);
|
||
|
|
row["CHECKSUM"] = reader.GetValue(15);
|
||
|
|
row["CREATE_OPTIONS"] = GetString(reader, 16);
|
||
|
|
row["TABLE_COMMENT"] = GetString(reader, 17);
|
||
|
|
schemaTable.Rows.Add(row);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private static string GetString(MySqlDataReader reader, int index)
|
||
|
|
{
|
||
|
|
if (reader.IsDBNull(index))
|
||
|
|
return null;
|
||
|
|
return reader.GetString(index);
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual DataTable GetUDF(string[] restrictions)
|
||
|
|
{
|
||
|
|
string sql = "SELECT name,ret,dl FROM mysql.func";
|
||
|
|
if (restrictions != null)
|
||
|
|
{
|
||
|
|
if (restrictions.Length >= 1 && !String.IsNullOrEmpty(restrictions[0]))
|
||
|
|
sql += String.Format(" WHERE name LIKE '{0}'", restrictions[0]);
|
||
|
|
}
|
||
|
|
|
||
|
|
DataTable dt = new DataTable("User-defined Functions");
|
||
|
|
dt.Columns.Add("NAME", typeof(string));
|
||
|
|
dt.Columns.Add("RETURN_TYPE", typeof(int));
|
||
|
|
dt.Columns.Add("LIBRARY_NAME", typeof(string));
|
||
|
|
|
||
|
|
MySqlCommand cmd = new MySqlCommand(sql, connection);
|
||
|
|
try
|
||
|
|
{
|
||
|
|
using (MySqlDataReader reader = cmd.ExecuteReader())
|
||
|
|
{
|
||
|
|
while (reader.Read())
|
||
|
|
{
|
||
|
|
DataRow row = dt.NewRow();
|
||
|
|
row[0] = reader.GetString(0);
|
||
|
|
row[1] = reader.GetInt32(1);
|
||
|
|
row[2] = reader.GetString(2);
|
||
|
|
dt.Rows.Add(row);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
catch (MySqlException ex)
|
||
|
|
{
|
||
|
|
if (ex.Number != (int)MySqlErrorCode.TableAccessDenied)
|
||
|
|
throw;
|
||
|
|
throw new MySqlException(Resources.UnableToEnumerateUDF, ex);
|
||
|
|
}
|
||
|
|
|
||
|
|
return dt;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected virtual DataTable GetSchemaInternal(string collection, string[] restrictions)
|
||
|
|
{
|
||
|
|
switch (collection)
|
||
|
|
{
|
||
|
|
// common collections
|
||
|
|
case "METADATACOLLECTIONS":
|
||
|
|
return GetCollections();
|
||
|
|
case "DATASOURCEINFORMATION":
|
||
|
|
return GetDataSourceInformation();
|
||
|
|
case "DATATYPES":
|
||
|
|
return GetDataTypes();
|
||
|
|
case "RESTRICTIONS":
|
||
|
|
return GetRestrictions();
|
||
|
|
case "RESERVEDWORDS":
|
||
|
|
return GetReservedWords();
|
||
|
|
|
||
|
|
// collections specific to our provider
|
||
|
|
case "USERS":
|
||
|
|
return GetUsers(restrictions);
|
||
|
|
case "DATABASES":
|
||
|
|
return GetDatabases(restrictions);
|
||
|
|
case "UDF":
|
||
|
|
return GetUDF(restrictions);
|
||
|
|
}
|
||
|
|
|
||
|
|
// if we have a current database and our users have
|
||
|
|
// not specified a database, then default to the currently
|
||
|
|
// selected one.
|
||
|
|
if (restrictions == null)
|
||
|
|
restrictions = new string[2];
|
||
|
|
if (connection != null &&
|
||
|
|
connection.Database != null &&
|
||
|
|
connection.Database.Length > 0 &&
|
||
|
|
restrictions.Length > 1 &&
|
||
|
|
restrictions[1] == null)
|
||
|
|
restrictions[1] = connection.Database;
|
||
|
|
|
||
|
|
switch (collection)
|
||
|
|
{
|
||
|
|
case "TABLES":
|
||
|
|
return GetTables(restrictions);
|
||
|
|
case "COLUMNS":
|
||
|
|
return GetColumns(restrictions);
|
||
|
|
case "INDEXES":
|
||
|
|
return GetIndexes(restrictions);
|
||
|
|
case "INDEXCOLUMNS":
|
||
|
|
return GetIndexColumns(restrictions);
|
||
|
|
case "FOREIGN KEYS":
|
||
|
|
return GetForeignKeys(restrictions);
|
||
|
|
case "FOREIGN KEY COLUMNS":
|
||
|
|
return GetForeignKeyColumns(restrictions);
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal string[] CleanRestrictions(string[] restrictionValues)
|
||
|
|
{
|
||
|
|
string[] restrictions = null;
|
||
|
|
if (restrictionValues != null)
|
||
|
|
{
|
||
|
|
restrictions = (string[])restrictionValues.Clone();
|
||
|
|
|
||
|
|
for (int x = 0; x < restrictions.Length; x++)
|
||
|
|
{
|
||
|
|
string s = restrictions[x];
|
||
|
|
if (s == null) continue;
|
||
|
|
restrictions[x] = s.Trim('`');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return restrictions;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|