IF NOT EXISTS(SELECT 1 FROM INFORMATION_SCHEMA.SCHEMATA
WHERE SCHEMA_NAME = 'utils'
AND SCHEMA_OWNER = 'dbo')
BEGIN
EXEC('CREATE SCHEMA utils AUTHORIZATION dbo')
END
GO
IF NOT EXISTS(SELECT 1
FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_NAME
= 'GenerateIndexesScript'
AND ROUTINE_TYPE
= N'PROCEDURE')
BEGIN
EXEC ('CREATE PROCEDURE [utils].[GenerateIndexesScript] AS BEGIN
SELECT 1 END')
END
GO
/*
Adapted from
http://www.sqlservercentral.com/Forums/Topic401784-562-2.aspx (by Jonathan AC
Roberts. )
Modifications 10/06/2010 By R.Doering -
http://sqlsolace.blogspot.com
1)
Changed Schema of routine to Utils
2)
Changed Name from INFGenerateIndexesScript to GenerateIndexesScript
3)
Added Schemas to script
4)
Reformatted for clarity
--
Usage: EXEC utils.GenerateIndexesScript 1, 0, 0
*/
ALTER PROCEDURE utils.GenerateIndexesScript
(
@IncludeFileGroup
bit = 1,
@IncludeDrop
bit = 1,
@IncludeFillFactor bit
= 1
)
AS
BEGIN
-- Get all existing indexes, but NOT the primary keys
DECLARE Indexes_cursor
CURSOR
FOR SELECT
SC.Name AS SchemaName
, SO.Name AS TableName
, SI.Object_Id AS TableId
, SI.[Name] AS IndexName
, SI.Index_ID AS IndexId
, FG.[Name] AS FileGroupName
, CASE WHEN SI.Fill_Factor = 0 THEN 100 ELSE SI.Fill_Factor END Fill_Factor
FROM sys.indexes SI
LEFT JOIN
sys.filegroups FG
ON SI.data_space_id = FG.data_space_id
INNER JOIN
sys.objects SO
ON SI.object_id = SO.object_id
INNER JOIN sys.schemas SC
ON SC.schema_id = SO.schema_id
WHERE ObjectProperty(SI.Object_Id, 'IsUserTable') = 1
AND SI.[Name] IS NOT NULL
AND SI.is_primary_key = 0
AND SI.is_unique_constraint
= 0
AND IndexProperty(SI.Object_Id, SI.[Name], 'IsStatistics') = 0
ORDER BY Object_name(SI.Object_Id), SI.Index_ID
DECLARE @SchemaName sysname
DECLARE @TableName sysname
DECLARE @TableId int
DECLARE @IndexName sysname
DECLARE @FileGroupName sysname
DECLARE @IndexId int
DECLARE @FillFactor int
DECLARE @NewLine nvarchar(4000) SET @NewLine = CHAR(13) + CHAR(10)
DECLARE @Tab nvarchar(4000) SET @Tab = Space(4)
-- Loop through all indexes
OPEN Indexes_cursor
FETCH NEXT
FROM Indexes_cursor
INTO @SchemaName, @TableName, @TableId, @IndexName, @IndexId, @FileGroupName, @FillFactor
WHILE (@@Fetch_Status = 0)
BEGIN
DECLARE @sIndexDesc nvarchar(4000)
DECLARE @sCreateSql nvarchar(4000)
DECLARE @sDropSql nvarchar(4000)
SET @sIndexDesc = '-- Index ' + @IndexName + ' on table ' + @TableName
SET @sDropSql = 'IF EXISTS(SELECT 1'
+ @NewLine
+ ' FROM sysindexes si' + @NewLine
+ ' INNER JOIN sysobjects so' + @NewLine
+ ' ON so.id = si.id' + @NewLine
+ ' WHERE si.[Name] = N''' + @IndexName + ''' -- Index Name' + @NewLine
+ ' AND so.[Name] = N''' + @TableName + ''') -- Table Name' + @NewLine
+ 'BEGIN' + @NewLine
+ ' DROP INDEX [' + @IndexName + '] ON [' + @SchemaName + '].[' + @TableName + ']' + @NewLine
+ 'END' + @NewLine
SET @sCreateSql = 'CREATE '
-- Check if the index is unique
IF (IndexProperty(@TableId, @IndexName, 'IsUnique') = 1)
BEGIN
SET @sCreateSql
= @sCreateSql + 'UNIQUE '
END
--END IF
-- Check if the index is clustered
IF (IndexProperty(@TableId, @IndexName, 'IsClustered') = 1)
BEGIN
SET @sCreateSql
= @sCreateSql + 'CLUSTERED '
END
--END IF
SET @sCreateSql = @sCreateSql + 'INDEX [' + @IndexName + '] ON [' + @SchemaName + '].[' + @TableName + ']' + @NewLine + '(' + @NewLine
-- Get all columns of the index
DECLARE IndexColumns_cursor
CURSOR
FOR SELECT
SC.[Name],
IC.[is_included_column],
IC.is_descending_key
FROM
sys.index_columns IC
INNER JOIN
sys.columns SC
ON IC.Object_Id = SC.Object_Id
AND IC.Column_ID = SC.Column_ID
WHERE IC.Object_Id = @TableId
AND
Index_ID = @IndexId
ORDER BY
IC.key_ordinal
DECLARE @IxColumn sysname
DECLARE @IxIncl bit
DECLARE @Desc bit
DECLARE @IxIsIncl bit SET @IxIsIncl = 0
DECLARE @IxFirstColumn bit SET @IxFirstColumn = 1
-- Loop through all columns of the index and append them to
the CREATE statement
OPEN IndexColumns_cursor
FETCH NEXT
FROM IndexColumns_cursor
INTO @IxColumn, @IxIncl, @Desc
WHILE (@@Fetch_Status = 0)
BEGIN
IF (@IxFirstColumn = 1)
BEGIN
SET @IxFirstColumn = 0
END
ELSE
BEGIN
--check to see if it's an included column
IF (@IxIsIncl = 0) AND (@IxIncl = 1)
BEGIN
SET @IxIsIncl = 1
SET @sCreateSql = @sCreateSql + @NewLine + ')' + @NewLine + 'INCLUDE' + @NewLine + '(' + @NewLine
END
ELSE
BEGIN
SET @sCreateSql = @sCreateSql + ',' + @NewLine
END
--END IF
END
--END IF
SET @sCreateSql
= @sCreateSql + @Tab + '[' + @IxColumn + ']'
-- check if ASC or DESC
IF @IxIsIncl
= 0
BEGIN
IF @Desc = 1
BEGIN
SET @sCreateSql = @sCreateSql + ' DESC'
END
ELSE
BEGIN
SET @sCreateSql = @sCreateSql + ' ASC'
END
--END IF
END
--END IF
FETCH NEXT
FROM IndexColumns_cursor
INTO @IxColumn, @IxIncl, @Desc
END
--END WHILE
CLOSE IndexColumns_cursor
DEALLOCATE IndexColumns_cursor
SET @sCreateSql = @sCreateSql + @NewLine + ') '
IF @IncludeFillFactor
= 1
BEGIN
SET @sCreateSql
= @sCreateSql + @NewLine + 'WITH (FillFactor = '
+ Cast(@FillFactor as varchar(13)) + ')' + @NewLine
END
--END IF
IF @IncludeFileGroup = 1
BEGIN
SET @sCreateSql
= @sCreateSql + 'ON ['+ @FileGroupName + ']' + @NewLine
END
ELSE
BEGIN
SET @sCreateSql
= @sCreateSql + @NewLine
END
--END IF
PRINT '--
**********************************************************************'
PRINT @sIndexDesc
PRINT '-- **********************************************************************'
IF @IncludeDrop = 1
BEGIN
PRINT @sDropSql
PRINT 'GO'
END
--END IF
PRINT @sCreateSql
PRINT 'GO' + @NewLine + @NewLine
FETCH NEXT
FROM Indexes_cursor
INTO @SchemaName, @TableName, @TableId, @IndexName, @IndexId, @FileGroupName, @FillFactor
END
--END WHILE
CLOSE Indexes_cursor
DEALLOCATE Indexes_cursor
END
GO
