USE DATABASE
GO
SET NOCOUNT ON;
DECLARE @objectid int;
DECLARE @indexid int;
DECLARE @partitioncount bigint;
DECLARE @schemaname nvarchar(130);
DECLARE @objectname nvarchar(130);
DECLARE @indexname nvarchar(130);
DECLARE @partitionnum bigint;
DECLARE @partitions bigint;
DECLARE @frag float;
DECLARE @command nvarchar(4000);
DECLARE @dbid smallint;
SET @dbid = DB_ID();
SELECT
object_id AS objectid,
index_id AS indexid,
partition_number AS partitionnum,
avg_fragmentation_in_percent AS frag
INTO #work_to_do
FROM sys.dm_db_index_physical_stats (@dbid, NULL, NULL , NULL, 'LIMITED')
WHERE avg_fragmentation_in_percent > 10.0 AND index_id > 0 AND page_count
> 25;
DECLARE partitions CURSOR FOR SELECT objectid, indexid, partitionnum, frag FROM
#work_to_do;
OPEN partitions;
WHILE (1=1)
BEGIN;
FETCH NEXT
FROM partitions
INTO @objectid, @indexid,
@partitionnum, @frag;
IF @@FETCH_STATUS < 0 BREAK;
SELECT @objectname =
QUOTENAME(o.name), @schemaname = QUOTENAME(s.name)
FROM sys.objects AS o
JOIN sys.schemas as s ON
s.schema_id = o.schema_id
WHERE o.object_id = @objectid;
SELECT @indexname =
QUOTENAME(name)
FROM sys.indexes
WHERE object_id = @objectid AND index_id =
@indexid;
SELECT @partitioncount = count
(*)
FROM sys.partitions
WHERE object_id = @objectid AND
index_id = @indexid;
IF @frag < 30.0
SET @command = N'ALTER INDEX
' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REORGANIZE';
IF @frag >= 30.0
SET @command = N'ALTER INDEX
' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REBUILD WITH
(ONLINE = ON)';
IF @partitioncount > 1
SET @command = @command + N'
PARTITION=' + CAST(@partitionnum AS nvarchar(10));
BEGIN TRY
EXEC
(@command);
END TRY
BEGIN CATCH
PRINT
ERROR_MESSAGE();
SET
@command = N'ALTER INDEX ' + @indexname + N' ON ' + @schemaname + N'.' +
@objectname + N' REBUILD WITH (ONLINE = OFF)';
EXEC
(@command);
END CATCH
PRINT N'Executed: ' + @command;
END;
CLOSE partitions;
DEALLOCATE partitions;
DROP TABLE #work_to_do;
GO
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