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Update index-fragmentation.sql

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This commit is contained in:
Alex Bochkov
2023-12-22 09:31:19 -07:00
committed by GitHub
parent ec0c2bf855
commit 249e8418b2
1 changed files with 36 additions and 37 deletions
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QueryTemplates/Performance/index-fragmentation.sql
+36 -37
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@@ -1,37 +1,36 @@
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
SELECT s.[name] AS SchemaName,
t.[name] AS TableName,
i.[index_id] AS IndexID,
i.[name] AS IndexName,
ips.partition_number AS PartitionNumber,
part.data_compression_desc AS DataComprDesc,
FORMAT(ips.avg_fragmentation_in_percent, 'N2') AS AvgFragPercent,
FORMAT(ips.page_count, 'N0') AS [PageCount],
FORMAT(ips.page_count * 8 / 1024, 'N0') AS IndexSizeMb,
CASE WHEN i.[type_desc] IN ('CLUSTERED', 'NONCLUSTERED')
THEN CONCAT('ALTER INDEX [', i.[name], '] ON [', s.[name], '].[', t.[name], '] REORGANIZE PARTITION = ',
IIF (ps.[name] IS NULL, 'ALL', CAST (ips.partition_number AS VARCHAR (4))), ';') ELSE '' END AS CmdReorg,
CASE WHEN i.[type_desc] IN ('HEAP')
THEN CONCAT('ALTER TABLE [', s.[name], '].[', t.[name], '] REBUILD PARTITION = ',
IIF (ps.[name] IS NULL, 'ALL', CAST (ips.partition_number AS VARCHAR (4))),
' WITH (ONLINE = ON (WAIT_AT_LOW_PRIORITY (MAX_DURATION = 1 MINUTES, ABORT_AFTER_WAIT = SELF)), DATA_COMPRESSION=PAGE, MAXDOP = 4);')
WHEN i.[type_desc] IN ('CLUSTERED', 'NONCLUSTERED')
THEN CONCAT('ALTER INDEX [', i.[name], '] ON [', s.[name], '].[', t.[name], '] REBUILD PARTITION = ',
IIF (ps.[name] IS NULL, 'ALL', CAST (ips.partition_number AS VARCHAR (4))),
' WITH (ONLINE = ON (WAIT_AT_LOW_PRIORITY (MAX_DURATION = 1 MINUTES, ABORT_AFTER_WAIT = SELF)), ',
'SORT_IN_TEMPDB = ON, DATA_COMPRESSION=PAGE, MAXDOP = 4);') END AS CmdRebuild
FROM sys.dm_db_index_physical_stats(DB_ID(), OBJECT_ID('boxes.GLJEDetail'),
NULL, NULL, NULL) AS ips
INNER JOIN sys.tables AS t ON t.[object_id] = ips.[object_id]
INNER JOIN sys.schemas AS s ON t.[schema_id] = s.[schema_id]
INNER JOIN sys.indexes AS i ON i.[object_id] = ips.[object_id] AND ips.index_id = i.index_id
INNER JOIN sys.partitions AS part ON i.[object_id] = part.[object_id] AND i.index_id = part.index_id AND ips.partition_number = part.partition_number
LEFT OUTER JOIN sys.partition_schemes AS ps ON i.data_space_id = ps.data_space_id
WHERE 1 = 1
-- AND ips.page_count > 100
-- AND i.[name] IS NOT NULL
-- AND ips.avg_fragmentation_in_percent > 50
-- AND part.data_compression_desc = 'NONE'
ORDER BY
-- ips.avg_fragmentation_in_percent DESC;
SchemaName, TableName, PartitionNumber, IndexID;