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g8rpal on 09/30/10

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Last Edited at 09/30/10 10:50pm

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Script all Indexes

/ Published in: SQL

This script will generate CREATE Index statements for all indexes in the database

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-- Script out indexes completely, including both PK's and regular indexes, each clustered or nonclustered.
-- DOES NOT HANDLE COMPRESSION; that's ok, since 2008 R2 RTM benchmarking shows it's faster and results in smaller indexes to insert uncompressed and then compress later
-- HARDCODES [dbo] schema (i.e. it doesn't say [JohnDoe].[table], changing that to [dbo].[table]
-- originally from http://www.sqlservercentral.com/Forums/Topic961088-2753-2.aspx

DECLARE
@idxTableName SYSNAME,
@idxTableID INT,
@idxname SYSNAME,
@idxid INT,
@colCount INT,
@IxColumn SYSNAME,
@IxFirstColumn BIT,
@ColumnIDInTable INT,
@ColumnIDInIndex INT,
@IsIncludedColumn INT,
@sIncludeCols VARCHAR(MAX),
@sIndexCols VARCHAR(MAX),
@sSQL VARCHAR(MAX),
@sParamSQL VARCHAR(MAX),
@sFilterSQL VARCHAR(MAX),
@location SYSNAME,
@IndexCount INT,
@CurrentIndex INT,
@CurrentCol INT,
@Name VARCHAR(128),
@IsPrimaryKey TINYINT,
@Fillfactor INT,
@FilterDefinition VARCHAR(MAX),
@IsClustered BIT -- used solely for putting information into the result table

IF EXISTS (SELECT * FROM tempdb.dbo.sysobjects WHERE id = object_id(N'[tempdb].[dbo].[#IndexSQL]'))
DROP TABLE [dbo].[#IndexSQL]

CREATE TABLE #IndexSQL
( TableName VARCHAR(128) NOT NULL
 ,IndexName VARCHAR(128) NOT NULL
 ,IsClustered BIT NOT NULL
 ,IsPrimaryKey BIT NOT NULL
 ,IndexCreateSQL VARCHAR(max) NOT NULL
)

IF EXISTS (SELECT * FROM tempdb.dbo.sysobjects WHERE id = object_id(N'[tempdb].[dbo].[#IndexListing]'))
DROP TABLE [dbo].[#IndexListing]

CREATE TABLE #IndexListing
(
[IndexListingID] INT IDENTITY(1,1) PRIMARY KEY CLUSTERED,
[TableName] SYSNAME COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[ObjectID] INT NOT NULL,
[IndexName] SYSNAME COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[IndexID] INT NOT NULL,
[IsPrimaryKey] TINYINT NOT NULL,
[FillFactor] INT,
[FilterDefinition] NVARCHAR(MAX) NULL
)

IF EXISTS (SELECT * FROM tempdb.dbo.sysobjects WHERE id = object_id(N'[tempdb].[dbo].[#ColumnListing]'))
DROP TABLE [dbo].[#ColumnListing]

CREATE TABLE #ColumnListing
(
[ColumnListingID] INT IDENTITY(1,1) PRIMARY KEY CLUSTERED,
[ColumnIDInTable] INT NOT NULL,
[Name] SYSNAME COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[ColumnIDInIndex] INT NOT NULL,
[IsIncludedColumn] BIT NULL
)

INSERT INTO #IndexListing( [TableName], [ObjectID], [IndexName], [IndexID], [IsPrimaryKey], [FILLFACTOR], [FilterDefinition] )
SELECT OBJECT_NAME(si.object_id), si.object_id, si.name, si.index_id, si.Is_Primary_Key, si.Fill_Factor, si.filter_definition
FROM sys.indexes si
LEFT OUTER JOIN information_schema.table_constraints tc ON si.name = tc.constraint_name AND OBJECT_NAME(si.object_id) = tc.table_name
WHERE OBJECTPROPERTY(si.object_id, 'IsUserTable') = 1
ORDER BY OBJECT_NAME(si.object_id), si.index_id

SELECT @IndexCount = @@ROWCOUNT, @CurrentIndex = 1

WHILE @CurrentIndex <= @IndexCount
BEGIN

SELECT @idxTableName = [TableName],
@idxTableID = [ObjectID],
@idxname = [IndexName],
@idxid = [IndexID],
@IsPrimaryKey = [IsPrimaryKey],
@FillFactor = [FILLFACTOR],
@FilterDefinition = [FilterDefinition]
FROM #IndexListing
WHERE [IndexListingID] = @CurrentIndex

-- So - it is either an index or a constraint
-- Check if the index is unique
IF (@IsPrimaryKey = 1)
BEGIN
 SET @sSQL = 'ALTER TABLE [dbo].[' + @idxTableName + '] ADD CONSTRAINT [' + @idxname + '] PRIMARY KEY '
 -- Check if the index is clustered
 IF (INDEXPROPERTY(@idxTableID, @idxname, 'IsClustered') = 0)
 BEGIN
 SET @sSQL = @sSQL + 'NON'
 SET @IsClustered = 0
 END
 ELSE
 BEGIN
 SET @IsClustered = 1
 END
 SET @sSQL = @sSQL + 'CLUSTERED' + CHAR(13) + '(' + CHAR(13)
END
ELSE
BEGIN
 SET @sSQL = 'CREATE '
 -- Check if the index is unique
 IF (INDEXPROPERTY(@idxTableID, @idxname, 'IsUnique') = 1)
 BEGIN
 SET @sSQL = @sSQL + 'UNIQUE '
 END
 -- Check if the index is clustered
 IF (INDEXPROPERTY(@idxTableID, @idxname, 'IsClustered') = 1)
 BEGIN
 SET @sSQL = @sSQL + 'CLUSTERED '
 SET @IsClustered = 1
 END
 ELSE
 BEGIN
 SET @IsClustered = 0
 END

SELECT
 @sSQL = @sSQL + 'INDEX [' + @idxname + '] ON [dbo].[' + @idxTableName + ']' + CHAR(13) + '(' + CHAR(13),
 @colCount = 0
END

-- Get the number of cols in the index
SELECT @colCount = COUNT(*)
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 = @idxtableid AND index_id = @idxid AND ic.is_included_column = 0

-- Get the file group info
SELECT @location = f.[name]
FROM sys.indexes i
INNER JOIN sys.filegroups f ON i.data_space_id = f.data_space_id
INNER JOIN sys.all_objects o ON i.[object_id] = o.[object_id]
WHERE o.object_id = @idxTableID AND i.index_id = @idxid

-- Get all columns of the index
INSERT INTO #ColumnListing( [ColumnIDInTable], [Name], [ColumnIDInIndex],[IsIncludedColumn] )
SELECT sc.column_id, sc.name, ic.index_column_id, ic.is_included_column
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 = @idxTableID AND index_id = @idxid
ORDER BY ic.index_column_id

IF @@ROWCOUNT > 0
BEGIN

SELECT @CurrentCol = 1

SELECT @IxFirstColumn = 1, @sIncludeCols = '', @sIndexCols = ''

WHILE @CurrentCol <= @ColCount
BEGIN
SELECT @ColumnIDInTable = ColumnIDInTable,
@Name = Name,
@ColumnIDInIndex = ColumnIDInIndex,
@IsIncludedColumn = IsIncludedColumn
FROM #ColumnListing
WHERE [ColumnListingID] = @CurrentCol

IF @IsIncludedColumn = 0
BEGIN

SET @sIndexCols = CHAR(9) + @sIndexCols + '[' + @Name + '] '

-- Check the sort order of the index cols ????????
IF (INDEXKEY_PROPERTY (@idxTableID,@idxid,@ColumnIDInIndex,'IsDescending')) = 0
BEGIN
SET @sIndexCols = @sIndexCols + ' ASC '
END
ELSE
BEGIN
SET @sIndexCols = @sIndexCols + ' DESC '
END

IF @CurrentCol < @colCount
BEGIN
SET @sIndexCols = @sIndexCols + ', '
END

END
ELSE
BEGIN
-- Check for any include columns
IF LEN(@sIncludeCols) > 0
BEGIN
SET @sIncludeCols = @sIncludeCols + ','
END

SET @sIncludeCols = @sIncludeCols + '[' + @IxColumn + ']'

END

SET @CurrentCol = @CurrentCol + 1
END

TRUNCATE TABLE #ColumnListing

--append to the result
IF LEN(@sIncludeCols) > 0
 SET @sIndexCols = @sSQL + @sIndexCols + CHAR(13) + ') ' + ' INCLUDE ( ' + @sIncludeCols + ' ) '
ELSE
 SET @sIndexCols = @sSQL + @sIndexCols + CHAR(13) + ') '

-- Add filtering
IF @FilterDefinition IS NOT NULL
 SET @sFilterSQL = ' WHERE ' + @FilterDefinition + ' ' + CHAR(13)
ELSE
 SET @sFilterSQL = ''

-- Build the options
SET @sParamSQL = 'WITH ( PAD_INDEX = '

IF INDEXPROPERTY(@idxTableID, @idxname, 'IsPadIndex') = 1
 SET @sParamSQL = @sParamSQL + 'ON,'
ELSE
 SET @sParamSQL = @sParamSQL + 'OFF,'

SET @sParamSQL = @sParamSQL + ' ALLOW_PAGE_LOCKS = '

IF INDEXPROPERTY(@idxTableID, @idxname, 'IsPageLockDisallowed') = 0
 SET @sParamSQL = @sParamSQL + 'ON,'
ELSE
 SET @sParamSQL = @sParamSQL + 'OFF,'

SET @sParamSQL = @sParamSQL + ' ALLOW_ROW_LOCKS = '

IF INDEXPROPERTY(@idxTableID, @idxname, 'IsRowLockDisallowed') = 0
SET @sParamSQL = @sParamSQL + 'ON,'
ELSE
SET @sParamSQL = @sParamSQL + 'OFF,'

SET @sParamSQL = @sParamSQL + ' STATISTICS_NORECOMPUTE = '

-- THIS DOES NOT WORK PROPERLY; IsStatistics only says what generated the last set, not what it was set to do.
IF (INDEXPROPERTY(@idxTableID, @idxname, 'IsStatistics') = 1)
SET @sParamSQL = @sParamSQL + 'ON'
ELSE
SET @sParamSQL = @sParamSQL + 'OFF'

-- Fillfactor 0 is actually not a valid percentage on SQL 2008 R2
IF ISNULL( @FillFactor, 90 ) <> 0 
 SET @sParamSQL = @sParamSQL + ' ,FILLFACTOR = ' + CAST( ISNULL( @FillFactor, 90 ) AS VARCHAR(3) )

IF (@IsPrimaryKey = 1) -- DROP_EXISTING isn't valid for PK's
BEGIN
 SET @sParamSQL = @sParamSQL + ' ) '
END
ELSE
BEGIN
 SET @sParamSQL = @sParamSQL + ' ,DROP_EXISTING = ON ) '
END

SET @sSQL = @sIndexCols + CHAR(13) + @sFilterSQL + CHAR(13) + @sParamSQL

-- 2008 R2 allows ON [filegroup] for primary keys as well, negating the old "IF THE INDEX IS NOT A PRIMARY KEY - ADD THIS - ELSE DO NOT" IsPrimaryKey IF statement
SET @sSQL = @sSQL + ' ON [' + @location + ']'

--PRINT @sIndexCols + CHAR(13)
INSERT INTO #IndexSQL (TableName, IndexName, IsClustered, IsPrimaryKey, IndexCreateSQL) VALUES (@idxTableName, @idxName, @IsClustered, @IsPrimaryKey, @sSQL)

END

SET @CurrentIndex = @CurrentIndex + 1
END

SELECT * FROM #IndexSQL

URL: http://www.sqlservercentral.com/scripts/Indexing/70737/

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