SchemaModelHelper.cs

/branches/HP10.2/Source/nHydrate.DataImport.SqlClient/SchemaModelHelper.cs

#
C# | 489 lines | 417 code | 40 blank | 32 comment | 62 complexity | 0d9fc58a4be6f8b56f5fcc4d7d94ab3b MD5 | raw file
Possible License(s): JSON, CC-BY-SA-3.0

#region Copyright (c) 2006-2013 nHydrate.org, All Rights Reserved

// -------------------------------------------------------------------------- *

//                           NHYDRATE.ORG                                     *

//              Copyright (c) 2006-2013 All Rights reserved                   *

//                                                                            *

//                                                                            *

// Permission is hereby granted, free of charge, to any person obtaining a    *

// copy of this software and associated documentation files (the "Software"), *

// to deal in the Software without restriction, including without limitation  *

// the rights to use, copy, modify, merge, publish, distribute, sublicense,   *

// and/or sell copies of the Software, and to permit persons to whom the      *

// Software is furnished to do so, subject to the following conditions:       *

//                                                                            *

// The above copyright notice and this permission notice shall be included    *

// in all copies or substantial portions of the Software.                     *

//                                                                            *

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,            *

// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES            *

// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  *

// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY       *

// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,       *

// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE          *

// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                     *

// -------------------------------------------------------------------------- *

#endregion

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Data;

using System.Text.RegularExpressions;



namespace nHydrate.DataImport.SqlClient

{

	public class SchemaModelHelper : ISchemaModelHelper

	{

		#region Public Methods

		

		public bool IsValidConnectionString(string connectionString)

		{

			var valid = false;

			var conn = new System.Data.SqlClient.SqlConnection();

			try

			{

				conn.ConnectionString = connectionString;

				conn.Open();

				valid = true;

			}

			catch (Exception ex)

			{

				valid = false;

			}

			finally

			{

				conn.Close();

			}

			return valid;

		}



		public bool IsSupportedSQLVersion(string connectionString)

		{

			var ds = DatabaseHelper.ExecuteDataset(connectionString, "SELECT SERVERPROPERTY('productversion')");

			var version = (string)ds.Tables[0].Rows[0][0];

			if (version.StartsWith("10."))

				return true;

			else if (version.StartsWith("9."))

				return true;

			else

				return false;

		}



		public SQLServerTypeConstants GetSQLVersion(string connectionString)

		{

			var ds = DatabaseHelper.ExecuteDataset(connectionString, "SELECT SERVERPROPERTY('productversion')");

			var version = (string)ds.Tables[0].Rows[0][0];

			if (version.StartsWith("10."))

			{

				var ds2 = DatabaseHelper.ExecuteDataset(connectionString, "SELECT SERVERPROPERTY('Edition')");

				var version2 = (string)ds2.Tables[0].Rows[0][0];

				if (version2 == "SQL Azure")

					return SQLServerTypeConstants.SQLAzure;

				else

					return SQLServerTypeConstants.SQL2008;

			}

			else

			{

				return SQLServerTypeConstants.SQL2005;

			}

		}

		

		#endregion



		internal static string GetSqlDatabaseTables()

		{

			var sb = new StringBuilder();

			sb.AppendLine("DECLARE @bar varchar(150)");

			sb.AppendLine("DECLARE @val varchar(150)");

			sb.AppendLine("DECLARE @tab table");

			sb.AppendLine("(");

			sb.AppendLine("xName varchar(150) NOT NULL,");

			sb.AppendLine("xValue varchar(150) NULL,");

			sb.AppendLine("xSchema varchar(150) NOT NULL");

			sb.AppendLine(")");

			sb.AppendLine("INSERT INTO @tab SELECT so.name, null, sc.name [schema] FROM sys.tables so INNER JOIN sys.schemas sc ON so.schema_id = sc.schema_id WHERE so.name <> 'dtproperties' AND (so.name <> 'sysdiagrams') AND (so.name <> '__nhydrateschema')AND (so.name <> '__nhydrateobjects') AND NOT (so.name like '__AUDIT__%')");

			sb.AppendLine("select xName as name, xSchema as [schema], xValue selectionCriteria from @tab WHERE xName <> 'dtproperties' ORDER BY xName");

			return sb.ToString();

		}



		internal static string GetSqlColumnsForTable()

		{

			return GetSqlColumnsForTable(null);

		}



		internal static string GetSqlForUniqueConstraints()

		{

			var sb = new StringBuilder();

			sb.AppendLine("select o.name as TableName, col.name as ColumnName");

			sb.AppendLine("from sys.indexes i inner join sys.objects o on i.object_id = o.object_id ");

			sb.AppendLine("	inner join sys.index_columns ic on i.index_id = ic.index_id and ic.object_id = o.object_id");

			sb.AppendLine("	INNER JOIN sys.columns col ON ic.object_id = col.object_id and ic.column_id = col.column_id");

			sb.AppendLine("where i.is_unique = 1 and is_primary_key = 0 and is_unique_constraint = 1");

			return sb.ToString();

		}



		internal static string GetSqlForIndexes()

		{

			var sb = new StringBuilder();

			sb.AppendLine();

			sb.AppendLine("SELECT ");

			sb.AppendLine("     ind.name as indexname");

			sb.AppendLine("     ,ind.is_primary_key");

			sb.AppendLine("    --,ind.index_id ");

			sb.AppendLine("    --,ic.index_column_id ");

			sb.AppendLine("    ,t.name as tablename");

			sb.AppendLine("    ,col.name as columnname");

			sb.AppendLine("    ,ic.is_descending_key");

			sb.AppendLine("    ,ic.key_ordinal");

			sb.AppendLine("    ,ind.type_desc");

			sb.AppendLine("    ,ind.is_unique_constraint");

			sb.AppendLine("    ,ind.is_primary_key");

			sb.AppendLine("    --,ic.* ");

			sb.AppendLine("    --,col.* ");

			sb.AppendLine("    --,ind.* ");

			sb.AppendLine("FROM sys.indexes ind ");

			sb.AppendLine("INNER JOIN sys.index_columns ic ");

			sb.AppendLine("    ON  ind.object_id = ic.object_id and ind.index_id = ic.index_id ");

			sb.AppendLine("INNER JOIN sys.columns col ");

			sb.AppendLine("    ON ic.object_id = col.object_id and ic.column_id = col.column_id ");

			sb.AppendLine("INNER JOIN sys.tables t ");

			sb.AppendLine("    ON ind.object_id = t.object_id ");

			sb.AppendLine("WHERE (1=1) ");

			//sb.AppendLine("    AND ind.is_primary_key = 0 ");

			//sb.AppendLine("    AND ind.is_unique = 0 ");

			//sb.AppendLine("    AND ind.is_unique_constraint = 0 ");

			sb.AppendLine("    AND t.is_ms_shipped = 0 ");

			sb.AppendLine("    AND ic.key_ordinal <> 0");

			sb.AppendLine("ORDER BY ");

			sb.AppendLine("    ind.name, ic.key_ordinal");

			return sb.ToString();

		}



		internal static string GetSqlColumnsForComputed()

		{

			var sb = new StringBuilder();

			sb.AppendLine("select o.name as tablename, c.name as columnname, c.definition");

			sb.AppendLine("from sys.computed_columns c inner join sys.objects o on c.object_id = o.object_id");

			return sb.ToString();

		}



		internal static string GetSqlColumnsForTable(string tableName)

		{

			var sb = new StringBuilder();

			sb.AppendLine("SELECT");

			sb.AppendLine(" 	c.ORDINAL_POSITION as colorder,");

			sb.AppendLine(" 	c.TABLE_NAME as tablename,");

			sb.AppendLine(" 	c.COLUMN_NAME as columnname,");

			sb.AppendLine("(");

			sb.AppendLine("select top 1 c1.name");

			sb.AppendLine("from sys.indexes i");

			sb.AppendLine("join sysobjects o ON i.object_id = o.id");

			sb.AppendLine("join sysobjects pk ON i.name = pk.name");

			sb.AppendLine("AND pk.parent_obj = i.object_id");

			sb.AppendLine("AND pk.xtype = 'PK'");

			sb.AppendLine("join sys.index_columns ik on i.object_id = ik.object_id");

			sb.AppendLine("and i.index_id = ik.index_id");

			sb.AppendLine("join syscolumns c1 ON ik.object_id = c1.id");

			sb.AppendLine("AND ik.column_id = c1.colid");

			sb.AppendLine("AND c1.name = c.COLUMN_NAME");

			sb.AppendLine("where o.name = c.TABLE_NAME");

			sb.AppendLine(") as [isPrimaryKey],");

			sb.AppendLine(" 	case WHEN");

			sb.AppendLine(" 	(");

			sb.AppendLine(" 		SELECT ");

			sb.AppendLine(" 				count(*) ");

			sb.AppendLine(" 			FROM ");

			sb.AppendLine(" 				INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE foreignkeyccu");

			sb.AppendLine(" 				INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS foreignkeytc on foreignkeyccu.CONSTRAINT_NAME = foreignkeytc.CONSTRAINT_NAME AND");

			sb.AppendLine(" 																												foreignkeyccu.CONSTRAINT_SCHEMA = foreignkeytc.CONSTRAINT_SCHEMA AND");

			sb.AppendLine(" 																												foreignkeytc.CONSTRAINT_TYPE = 'FOREIGN KEY'");

			sb.AppendLine(" 			WHERE");

			sb.AppendLine(" 				foreignkeyccu.TABLE_SCHEMA = c.TABLE_SCHEMA AND");

			sb.AppendLine(" 				foreignkeyccu.TABLE_NAME = c.TABLE_NAME AND");

			sb.AppendLine(" 				foreignkeyccu.COLUMN_NAME = c.COLUMN_NAME ");

			sb.AppendLine(" 	) > 0 THEN 'true' ELSE 'false' END as isForeignKey,");

			sb.AppendLine(" 	c.DATA_TYPE as datatype,");

			sb.AppendLine(" 	s.xtype,");

			sb.AppendLine(" 	c.numeric_precision AS [precision], c.numeric_scale AS [scale],");

			sb.AppendLine(" 		case when	c.CHARACTER_MAXIMUM_LENGTH is null or c.CHARACTER_MAXIMUM_LENGTH > 8000 then s.length else c.CHARACTER_MAXIMUM_LENGTH end as length,");

			sb.AppendLine(" 	case when c.IS_NULLABLE = 'No' then 'false' else 'true' end as allowNull, ");

			sb.AppendLine(" 	case when c.COLUMN_DEFAULT is null then '' else c.COLUMN_DEFAULT end as defaultValue,");

			sb.AppendLine(" 	case when COLUMNPROPERTY(OBJECT_ID(c.TABLE_SCHEMA+'.'+c.TABLE_NAME), COLUMN_NAME, 'IsIdentity') = 1 then 'true' else 'false' end as isIdentity,");

			sb.AppendLine(" 	c.COLLATION_NAME AS collation");

			sb.AppendLine(" FROM ");

			sb.AppendLine(" 	INFORMATION_SCHEMA.COLUMNS c ");

			sb.AppendLine(" 	INNER JOIN systypes s on s.name = c.DATA_TYPE");

			if (!string.IsNullOrEmpty(tableName))

				sb.AppendLine(" WHERE c.TABLE_NAME = '" + tableName + "'");

			sb.AppendLine(" ORDER BY");

			sb.AppendLine(" 	c.TABLE_NAME,");

			sb.AppendLine(" 	c.ORDINAL_POSITION");

			return sb.ToString();

		}



		internal static string GetSqlForRelationships()

		{

			var sb = new StringBuilder();

			sb.AppendLine("SELECT ");

			sb.AppendLine("	 KCU1.CONSTRAINT_NAME AS 'FK_CONSTRAINT_NAME'");

			sb.AppendLine("	, KCU1.TABLE_NAME AS 'FK_TABLE_NAME'");

			sb.AppendLine("	, KCU1.COLUMN_NAME AS 'FK_COLUMN_NAME' ");

			sb.AppendLine("	, KCU2.TABLE_NAME AS 'UQ_TABLE_NAME'");

			sb.AppendLine("	, KCU2.COLUMN_NAME AS 'UQ_COLUMN_NAME'");

			sb.AppendLine("	, so.id");

			sb.AppendLine("FROM ");

			sb.AppendLine("	INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS RC");

			sb.AppendLine("	JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE KCU1");

			sb.AppendLine("		ON KCU1.CONSTRAINT_CATALOG = RC.CONSTRAINT_CATALOG ");

			sb.AppendLine("		AND KCU1.CONSTRAINT_SCHEMA = RC.CONSTRAINT_SCHEMA");

			sb.AppendLine("		AND KCU1.CONSTRAINT_NAME = RC.CONSTRAINT_NAME");

			sb.AppendLine("JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE KCU2");

			sb.AppendLine("	ON KCU2.CONSTRAINT_CATALOG = RC.UNIQUE_CONSTRAINT_CATALOG ");

			sb.AppendLine("		AND KCU2.CONSTRAINT_SCHEMA = RC.UNIQUE_CONSTRAINT_SCHEMA");

			sb.AppendLine("		AND KCU2.CONSTRAINT_NAME = RC.UNIQUE_CONSTRAINT_NAME");

			sb.AppendLine("		AND KCU2.ORDINAL_POSITION = KCU1.ORDINAL_POSITION");

			sb.AppendLine("JOIN sysobjects so");

			sb.AppendLine("	ON KCU1.CONSTRAINT_NAME = so.name");

			sb.AppendLine("WHERE");

			sb.AppendLine("	so.xtype = 'F'");

			sb.AppendLine("ORDER BY");

			sb.AppendLine("	KCU1.CONSTRAINT_NAME,");

			sb.AppendLine("	KCU1.ORDINAL_POSITION");

			return sb.ToString();

		}



		internal static string GetSqlIndexesForTable()

		{

			var sb = new StringBuilder();



			sb.AppendLine("select t.name as tablename, i.name as indexname, c.name as columnname, i.is_primary_key");

			sb.AppendLine("from sys.tables t");

			sb.AppendLine("inner join sys.indexes i on i.object_id = t.object_id");

			sb.AppendLine("inner join sys.index_columns ic on ic.object_id = t.object_id");

			sb.AppendLine("inner join sys.columns c on c.object_id = t.object_id and");

			sb.AppendLine("ic.column_id = c.column_id");



			//sb.AppendLine("select o.name as tablename, i.name as indexname, i.is_primary_key from sys.objects o inner join sys.indexes i on o.object_id = i.object_id where o.[type] = 'U'");

			return sb.ToString();

		}



		internal static string GetSqlForViews()

		{

			var sb = new StringBuilder();

			sb.AppendLine("select s.name as schemaname, v.name, m.definition from sys.views v inner join sys.sql_modules m on v.object_id = m.object_id inner join sys.schemas s on s.schema_id= v.schema_id");

			return sb.ToString();

		}



		internal static string GetViewBody(string sql)

		{

			var regEx = new Regex(@"CREATE VIEW[\r\n\s]*[a-zA-Z0-9\[\]_\.]*[\r\n\s]*AS[\r\n\s]*([\s\S\r\n]*)", RegexOptions.IgnoreCase);

			var match = regEx.Match(sql);

			if (match != null && match.Groups != null && match.Groups.Count == 2)

				sql = match.Groups[1].Value;

			else

			{

				sql = sql.Replace("\r", string.Empty);

				var arr = sql.Split('\n').ToList();

				var sb = new StringBuilder();



				var inBody = false;

				foreach (var lineText in arr)

				{

					//This is FAR from perfect. It assumes the creation line ends with the "AS" keyword for a stored proc

					if (inBody)

					{

						sb.AppendLine(lineText);

					}

					else if (!inBody && (lineText.ToLower().Trim().EndsWith(" as") || lineText.ToLower().Trim() == "as"))

					{

						inBody = true;

					}

				}

				sql = sb.ToString();



			}



			return sql.Trim();

		}



		internal static string GetSqlForViewsColumns()

		{

			var sb = new StringBuilder();

			sb.AppendLine("select v.name as viewname, c.name as columnname, c.system_type_id, c.max_length, c.precision, c.scale, c.is_nullable from sys.views v inner join sys.columns c on v.object_id = c.object_id order by v.name, c.name");

			return sb.ToString();

		}



		internal static string GetSqlForFunctions()

		{

			var sb = new StringBuilder();

			sb.AppendLine("select o.*, s.name as schemaname from sys.objects o inner join sys.schemas s on o.schema_id = s.schema_id WHERE [type] IN ('FN', 'IF', 'TF') and o.name <> 'fn_diagramobjects'");

			return sb.ToString();

		}



		internal static string GetFunctionBody(string schema, string name, string connectionString)

		{

			var sb = new StringBuilder();

			var ds = DatabaseHelper.ExecuteDataset(connectionString, "sp_helptext '[" + schema + "].[" + name + "]'");

			foreach (DataRow dr in ds.Tables[0].Rows)

			{

				var t = (string)dr["Text"] + string.Empty;

				sb.AppendLine(t.Replace("\r\n", string.Empty).Replace("\r", string.Empty).Replace("\n", string.Empty));

			}



			var sql = sb.ToString();

			var regEx = new Regex(@"CREATE\s*FUNCTION[\r\n\s]*[a-zA-Z0-9\[\]_\.]*.*RETURNS.*AS[\r\n\s]+(RETURN[\s\S\r\n]*)", RegexOptions.IgnoreCase | RegexOptions.Singleline);

			var match = regEx.Match(sql);

			if (match != null && match.Groups != null && match.Groups.Count == 2)

			{

				sql = match.Groups[1].Value;

			}

			else

			{

				regEx = new Regex(@"CREATE\s*FUNCTION[\r\n\s]*[a-zA-Z0-9\[\]_\.]*.*RETURNS.*(BEGIN[\s\S\r\n]*)", RegexOptions.IgnoreCase | RegexOptions.Singleline);

				match = regEx.Match(sql);

				if (match != null && match.Groups != null && match.Groups.Count == 2)

				{

					sql = match.Groups[1].Value;

				}

				else

				{

					regEx = new Regex(@"CREATE\s*FUNCTION[\r\n\s]*[a-zA-Z0-9\[\]_\.]*.*RETURNS.*AS[\r\n\s]+([\s\S\r\n]*)", RegexOptions.IgnoreCase | RegexOptions.Singleline);

					match = regEx.Match(sql);

					if (match != null && match.Groups != null && match.Groups.Count == 2)

						sql = match.Groups[1].Value;

					else

						System.Diagnostics.Debug.Write(string.Empty);

				}

			}



			return sql.Trim();

		}



		internal static string GetSqlForStoredProceduresParameters()

		{

			var sb = new StringBuilder();

			sb.AppendLine("SELECT	dbo.syscolumns.xtype, dbo.sysobjects.name, dbo.sysobjects.id,");

			sb.AppendLine("		dbo.syscolumns.name AS ColName,");

			sb.AppendLine("		dbo.systypes.name AS ColType,");

			sb.AppendLine("		dbo.syscolumns.isnullable,");

			sb.AppendLine("		dbo.syscolumns.length,");

			sb.AppendLine("		dbo.syscolumns.isoutparam");

			sb.AppendLine("FROM	dbo.sysobjects INNER JOIN");

			sb.AppendLine("		dbo.syscolumns ON dbo.sysobjects.id = dbo.syscolumns.id INNER JOIN");

			sb.AppendLine("		dbo.systypes ON dbo.syscolumns.xtype = dbo.systypes.xtype");

			sb.AppendLine("WHERE	(dbo.sysobjects.category = 0) AND");

			sb.AppendLine("		(dbo.sysobjects.xtype = 'P') AND");

			sb.AppendLine("		NOT (dbo.sysobjects.name LIKE 'gen_%') AND");

			sb.AppendLine("		NOT (dbo.sysobjects.name LIKE 'dt_%') AND");

			sb.AppendLine("		NOT (dbo.sysobjects.name LIKE 'sp[_]%diagram%') AND");

			sb.AppendLine("		dbo.systypes.name <> 'sysname' AND");

			sb.AppendLine("		(dbo.sysobjects.uid in (select uid from dbo.sysusers))");

			sb.AppendLine("ORDER BY");

			sb.AppendLine("		dbo.sysobjects.name, dbo.syscolumns.name");

			return sb.ToString();

		}



		internal static string GetSqlForStoredProceduresColumns(StoredProc sp)

		{

			var sb = new StringBuilder();

			System.Windows.Forms.Application.DoEvents();

			sb.AppendLine("SET FMTONLY ON");

			sb.Append("EXEC [" + (string.IsNullOrEmpty(sp.Schema) ? "dbo" : sp.Schema) + "].[" + sp.Name + "] ");



			foreach (var parameter in sp.ParameterList)

			{

				if (parameter.DataType == SqlDbType.UniqueIdentifier)

					sb.Append("@" + parameter.Name + "='540C6D43-5645-40FB-980F-2FF126BFBD5E'");

				else if (parameter.IsTextType())

					sb.Append("@" + parameter.Name + "=''");

				else if (parameter.IsNumericType())

					sb.Append("@" + parameter.Name + "=0");

				else if (parameter.IsBinaryType())

					sb.Append("@" + parameter.Name + "=0x0");

				else if (parameter.DataType == SqlDbType.Bit)

					sb.Append("@" + parameter.Name + "=0");

				else if (parameter.IsDateType())

					sb.Append("@" + parameter.Name + "='2000-01-01'");

				else

					System.Diagnostics.Debug.Write(string.Empty);



				if (sp.ParameterList.IndexOf(parameter) < sp.ParameterList.Count - 1)

					sb.Append(", ");

			}



			sb.AppendLine();

			return sb.ToString();

		}



		internal static string GetSqlForStoredProceduresBody(string schema, string spName, string connectionString)

		{

			var sb = new StringBuilder();

			var ds = DatabaseHelper.ExecuteDataset(connectionString, "sp_helptext '[" + schema + "].[" + spName + "]'");

			if (ds.Tables.Count > 0)

			{

				foreach (DataRow dr in ds.Tables[0].Rows)

				{

					sb.Append(((string)dr[0]).Replace("\r", string.Empty));

				}



				var arr = sb.ToString().Split('\n').ToList();

				sb = new StringBuilder();



				var inBody = false;

				foreach (var lineText in arr)

				{

					var lineText2 = StripComments(lineText);



					//This is FAR from perfect. It assumes the creation line ends with the "AS" keyword for a stored proc

					if (inBody)

					{

						sb.AppendLine(lineText);

					}

					else if (!inBody && (lineText2.ToLower().Trim().EndsWith(" as") || lineText2.ToLower().Trim() == "as"))

					{

						inBody = true;

					}

				}

			}



			return sb.ToString().Trim();

		}



		internal static string GetSqlForStoredProcedures()

		{

			return GetSqlForStoredProcedures(null);

		}



		internal static string GetSqlForStoredProcedures(string name)

		{

			var sb = new StringBuilder();

			sb.AppendLine("SELECT	OBJECT_SCHEMA_NAME(id) as schemaname, dbo.sysobjects.id, dbo.sysobjects.xtype, dbo.sysobjects.name");

			sb.AppendLine("FROM	dbo.sysobjects");

			sb.AppendLine("WHERE (dbo.sysobjects.category = 0) AND");

			sb.AppendLine("		(dbo.sysobjects.xtype = 'P') AND");

			sb.AppendLine("		NOT (dbo.sysobjects.name LIKE 'gen_%') AND");

			sb.AppendLine("		NOT (dbo.sysobjects.name LIKE 'dt_%') AND");

			sb.AppendLine("		NOT (dbo.sysobjects.name LIKE 'sp[_]%diagram%') AND");



			if (!string.IsNullOrEmpty(name))

			{

				sb.AppendLine("		(dbo.sysobjects.name = '" + name + "') AND");

			}



			sb.AppendLine("		(dbo.sysobjects.uid in (select uid from dbo.sysusers))");

			sb.AppendLine("ORDER BY dbo.sysobjects.name");

			return sb.ToString();

		}



		/// <summary>

		/// Not perfect!! Just strips off what looks like comment

		/// </summary>

		private static string StripComments(string sql)

		{

			if (string.IsNullOrEmpty(sql)) return sql;

			var index = sql.IndexOf("--");

			if (index == -1) return sql;

			return sql.Substring(0, index);

		}

	}

}