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ssms-addin/QueryTemplates/Performance/index-fragmentation.sql
2021-01-05 15:47:16 -08:00

38 lines
2.1 KiB
SQL

SELECT dbschemas.[name] as 'Schema',
dbtables.[name] as 'Table',
dbindexes.[index_id] as 'IndexID',
dbindexes.[name] as 'Index',
indexstats.partition_number,
part.data_compression_desc as 'Data Compr',
FORMAT(AVG(indexstats.avg_fragmentation_in_percent), 'N2') AS avg_fragmentation_in_percent,
FORMAT(SUM(indexstats.page_count), 'N0') AS page_count,
FORMAT(SUM(indexstats.page_count * 8 / 1024), 'N0') AS index_size_mb,
'ALTER INDEX ['+dbindexes.[name]+'] ON [' + dbschemas.name + '].['+dbtables.[name]+'] REORGANIZE PARTITION = '
+ CASE WHEN EXISTS(SELECT TOP 1 1 FROM sys.partition_schemes s
WHERE s.data_space_id = dbindexes.data_space_id)
THEN CAST(indexstats.partition_number AS VARCHAR(3)) ELSE 'ALL' END + ';' AS CmdReorg,
'ALTER INDEX ['+dbindexes.[name]+'] ON [' + dbschemas.name + '].['+dbtables.[name]+'] REBUILD PARTITION = '
+ CASE WHEN EXISTS(SELECT TOP 1 1 FROM sys.partition_schemes s
WHERE s.data_space_id = dbindexes.data_space_id)
THEN CAST(indexstats.partition_number AS VARCHAR(3)) ELSE 'ALL' END
+ ' WITH (ONLINE = ON (WAIT_AT_LOW_PRIORITY (MAX_DURATION = 1 MINUTES, ABORT_AFTER_WAIT = SELF)), '
+ 'SORT_IN_TEMPDB = ON, DATA_COMPRESSION=PAGE, MAXDOP = 4);' AS CmdRebuild
FROM sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL, NULL, NULL) AS indexstats
INNER JOIN sys.tables dbtables on dbtables.[object_id] = indexstats.[object_id]
INNER JOIN sys.schemas dbschemas on dbtables.[schema_id] = dbschemas.[schema_id]
INNER JOIN sys.indexes AS dbindexes ON dbindexes.[object_id] = indexstats.[object_id]
AND indexstats.index_id = dbindexes.index_id
INNER JOIN sys.partitions AS part ON dbindexes.object_id = part.object_id
AND dbindexes.index_id = part.index_id AND indexstats.partition_number = part.partition_number
WHERE indexstats.database_id = DB_ID()
AND indexstats.page_count > 100
AND dbindexes.[name] IS NOT NULL
GROUP BY dbschemas.[name],
dbtables.[name],
dbindexes.[index_id],
dbindexes.[name],
indexstats.partition_number,
part.data_compression_desc,
dbindexes.data_space_id
ORDER BY AVG(indexstats.avg_fragmentation_in_percent) DESC