দাবি অস্বীকার: এই স্ক্রিপ্টগুলি এসকিউএল সার্ভার 2005/2008 এ পরীক্ষা করা হয়েছে। তবে এই কোড এবং তথ্য কোনও প্রকারের ওয়্যারেন্টি ছাড়াই "এএস আইএস" সরবরাহ করা হয়, প্রকাশিত বা বোঝানো হয়, তবে নির্দিষ্ট উদ্দেশ্যে সীমাবদ্ধ ওয়ারেন্টি বা ব্যবসায়িকতা এবং / অথবা ফিটনেস সীমাবদ্ধ নয়। সর্বদা হিসাবে, আপনার উত্পাদন পরিবেশে মোতায়েন করার চেষ্টা করার আগে এটি পরীক্ষার পরিবেশে এটি পরীক্ষা করুন। এখন যে উপায় বাইরে ...
সূচক ডিএমভিগুলির সাথে কাজ করার সময় আমি যে সমস্যার মধ্যে পড়েছি তার মধ্যে একটি হ'ল সেগুলি পারস্পরিক সম্পর্কযুক্ত হতে পারে না। অর্থ, আপনি কোন সূচকগুলির বিরুদ্ধে স্ক্যান করছেন তা সীমাবদ্ধ করতে আপনি তাদের বিরুদ্ধে ক্রস / আউটর প্রয়োগ করতে পারবেন না। এটি পেতে, আমি আমার মাস্টার ডাটাবেসে ফিজিকাল এবং অপারেশনাল সূচক ডিএমভিগুলির জন্য একটি মোড়ক ফাংশন স্থাপন করি:
শারীর:
ALTER FUNCTION [dbo].[tfn_IndexPhysicalStats_select]
(
@DatabaseID SMALLINT = 0,
@ObjectID INT = 0,
@IndexID INT = -1,
@PartitionNumber INT = 0,
@Mode NVARCHAR(20) = NULL
)
RETURNS @IndexPhysicalStats TABLE
(
database_id SMALLINT NOT NULL,
object_id INT NOT NULL,
index_id INT NOT NULL,
partition_number INT NOT NULL,
index_type_desc NVARCHAR(60) NULL,
alloc_unit_type_desc NVARCHAR(60) NULL,
index_depth TINYINT NOT NULL,
index_level TINYINT NOT NULL,
avg_fragmentation_in_percent FLOAT NULL,
fragment_count BIGINT NULL,
avg_fragment_size_in_pages FLOAT NULL,
page_count BIGINT NOT NULL,
avg_page_space_used_in_percent FLOAT NULL,
record_count BIGINT NULL,
ghost_record_count BIGINT NULL,
version_ghost_record_count BIGINT NULL,
min_record_size_in_bytes INT NULL,
max_record_size_in_bytes INT NULL,
avg_record_size_in_bytes FLOAT NULL,
forwarded_record_count BIGINT NULL
)
AS
BEGIN
INSERT INTO @IndexPhysicalStats
(
database_id,
object_id,
index_id,
partition_number,
index_type_desc,
alloc_unit_type_desc,
index_depth,
index_level,
avg_fragmentation_in_percent,
fragment_count,
avg_fragment_size_in_pages,
page_count,
avg_page_space_used_in_percent,
record_count,
ghost_record_count,
version_ghost_record_count,
min_record_size_in_bytes,
max_record_size_in_bytes,
avg_record_size_in_bytes,
forwarded_record_count
)
SELECT
ddips.database_id,
ddips.object_id,
ddips.index_id,
ddips.partition_number,
ddips.index_type_desc,
ddips.alloc_unit_type_desc,
ddips.index_depth,
ddips.index_level,
ddips.avg_fragmentation_in_percent,
ddips.fragment_count,
ddips.avg_fragment_size_in_pages,
ddips.page_count,
ddips.avg_page_space_used_in_percent,
ddips.record_count,
ddips.ghost_record_count,
ddips.version_ghost_record_count,
ddips.min_record_size_in_bytes,
ddips.max_record_size_in_bytes,
ddips.avg_record_size_in_bytes,
ddips.forwarded_record_count
FROM sys.dm_db_index_physical_stats
(
@DatabaseID,
@ObjectID,
@IndexID,
@PartitionNumber,
@Mode
) AS ddips;
RETURN;
END
পরিচালনাগত:
ALTER FUNCTION [dbo].[tfn_IndexOperationalStats_select]
(
@DatabaseID SMALLINT = 0,
@TableID INT = 0,
@IndexID INT = -1,
@PartitionNumber INT = 0
)
RETURNS @IndexOperationalStats TABLE
(
database_id SMALLINT NOT NULL,
object_id INT NOT NULL,
index_id INT NOT NULL,
partition_number INT NOT NULL,
leaf_insert_count BIGINT NULL,
leaf_delete_count BIGINT NULL,
leaf_update_count BIGINT NULL,
leaf_ghost_count BIGINT NULL,
nonleaf_insert_count BIGINT NULL,
nonleaf_delete_count BIGINT NULL,
nonleaf_update_count BIGINT NULL,
leaf_allocation_count BIGINT NULL,
nonleaf_allocation_count BIGINT NULL,
leaf_page_merge_count BIGINT NULL,
nonleaf_page_merge_count BIGINT NULL,
range_scan_count BIGINT NULL,
singleton_lookup_count BIGINT NULL,
forwarded_fetch_count BIGINT NULL,
lob_fetch_in_pages BIGINT NULL,
lob_fetch_in_bytes BIGINT NULL,
lob_orphan_create_count BIGINT NULL,
lob_orphan_insert_count BIGINT NULL,
row_overflow_fetch_in_pages BIGINT NULL,
row_overflow_fetch_in_bytes BIGINT NULL,
column_value_push_off_row_count BIGINT NULL,
column_value_pull_in_row_count BIGINT NULL,
row_lock_count BIGINT NULL,
row_lock_wait_count BIGINT NULL,
row_lock_wait_in_ms BIGINT NULL,
page_lock_count BIGINT NULL,
page_lock_wait_count BIGINT NULL,
page_lock_wait_in_ms BIGINT NULL,
index_lock_promotion_attempt_count BIGINT NULL,
index_lock_promotion_count BIGINT NULL,
page_latch_wait_count BIGINT NULL,
page_latch_wait_in_ms BIGINT NULL,
page_io_latch_wait_count BIGINT NULL,
page_io_latch_wait_in_ms BIGINT NULL
PRIMARY KEY CLUSTERED
(
database_id ASC,
object_id ASC,
index_id ASC,
partition_number ASC
)
)
AS
BEGIN
INSERT INTO @IndexOperationalStats
(
database_id,
object_id,
index_id,
partition_number,
leaf_insert_count,
leaf_delete_count,
leaf_update_count,
leaf_ghost_count,
nonleaf_insert_count,
nonleaf_delete_count,
nonleaf_update_count,
leaf_allocation_count,
nonleaf_allocation_count,
leaf_page_merge_count,
nonleaf_page_merge_count,
range_scan_count,
singleton_lookup_count,
forwarded_fetch_count,
lob_fetch_in_pages,
lob_fetch_in_bytes,
lob_orphan_create_count,
lob_orphan_insert_count,
row_overflow_fetch_in_pages,
row_overflow_fetch_in_bytes,
column_value_push_off_row_count,
column_value_pull_in_row_count,
row_lock_count,
row_lock_wait_count,
row_lock_wait_in_ms,
page_lock_count,
page_lock_wait_count,
page_lock_wait_in_ms,
index_lock_promotion_attempt_count,
index_lock_promotion_count,
page_latch_wait_count,
page_latch_wait_in_ms,
page_io_latch_wait_count,
page_io_latch_wait_in_ms
)
SELECT
ddios.database_id,
ddios.object_id,
ddios.index_id,
ddios.partition_number,
ddios.leaf_insert_count,
ddios.leaf_delete_count,
ddios.leaf_update_count,
ddios.leaf_ghost_count,
ddios.nonleaf_insert_count,
ddios.nonleaf_delete_count,
ddios.nonleaf_update_count,
ddios.leaf_allocation_count,
ddios.nonleaf_allocation_count,
ddios.leaf_page_merge_count,
ddios.nonleaf_page_merge_count,
ddios.range_scan_count,
ddios.singleton_lookup_count,
ddios.forwarded_fetch_count,
ddios.lob_fetch_in_pages,
ddios.lob_fetch_in_bytes,
ddios.lob_orphan_create_count,
ddios.lob_orphan_insert_count,
ddios.row_overflow_fetch_in_pages,
ddios.row_overflow_fetch_in_bytes,
ddios.column_value_push_off_row_count,
ddios.column_value_pull_in_row_count,
ddios.row_lock_count,
ddios.row_lock_wait_count,
ddios.row_lock_wait_in_ms,
ddios.page_lock_count,
ddios.page_lock_wait_count,
ddios.page_lock_wait_in_ms,
ddios.index_lock_promotion_attempt_count,
ddios.index_lock_promotion_count,
ddios.page_latch_wait_count,
ddios.page_latch_wait_in_ms,
ddios.page_io_latch_wait_count,
ddios.page_io_latch_wait_in_ms
FROM sys.dm_db_index_operational_stats
(
@DatabaseID,
@TableID,
@IndexID,
@PartitionNumber
) AS ddios;
RETURN;
END
আমি তারপরে আমার সূচক রক্ষণাবেক্ষণ কাজগুলিতে নিম্নলিখিত পদ্ধতিতে এই ফাংশনটি উল্লেখ করি:
DECLARE
@DDL NVARCHAR(MAX);
DECLARE ddl_cursor CURSOR
FOR
SELECT
CONVERT(NVARCHAR(MAX), DDL.DDL) AS DDL
FROM
(
SELECT
MasterIndexes.SchemaName,
MasterIndexes.TableName,
MasterIndexes.IndexName,
MasterIndexes.DatabaseID,
MasterIndexes.ObjectID,
MasterIndexes.IndexID,
MasterIndexes.PartitionNumber,
MasterIndexes.type_desc,
MasterIndexes.is_unique,
MasterIndexes.is_primary_key,
MasterIndexes.is_unique_constraint,
MasterIndexes.fill_factor,
MasterIndexes.allow_row_locks,
MasterIndexes.allow_page_locks,
MasterIndexes.UpdateStatisticsIndicator,
1 AS SortInTempDB,
CASE
WHEN CONVERT(VARCHAR(100), SERVERPROPERTY('edition')) LIKE 'Enterprise Edition%' THEN 1
ELSE 0
END AS OnlineIndicator,
CASE
WHEN
ips.avg_fragmentation_in_percent BETWEEN CONVERT(FLOAT, 10) AND CONVERT(FLOAT, 30)
AND ips.page_count >= 100
THEN
1
ELSE
0
END AS ReorganizationIndicator,
CASE
WHEN
(
ips.avg_fragmentation_in_percent >= 30
AND ips.page_count >= 100
)
OR
(
ips.avg_fragmentation_in_percent BETWEEN CONVERT(FLOAT, 10) AND CONVERT(FLOAT, 30)
AND ips.page_count < 100
)
THEN
1
ELSE
0
END AS RebuildIndicator
FROM
(
SELECT
s.name AS SchemaName,
t.name AS TableName,
ix.name AS IndexName,
DB_ID() AS DatabaseID,
ddps.object_id AS ObjectID,
ddps.index_id AS IndexID,
ddps.partition_number AS PartitionNumber,
ix.type_desc,
ix.is_unique,
ix.is_primary_key,
ix.is_unique_constraint,
ix.fill_factor,
ix.allow_row_locks,
ix.allow_page_locks,
1 AS UpdateStatisticsIndicator
FROM sys.schemas AS s
INNER JOIN sys.tables AS t
ON s.schema_id = t.schema_id
INNER JOIN sys.indexes AS ix
ON t.object_id = ix.object_id
INNER JOIN sys.dm_db_partition_stats AS ddps
ON ix.object_id = ddps.object_id
AND ix.index_id = ddps.index_id
CROSS APPLY master.dbo.tfn_IndexOperationalStats_select
(
DB_ID(),
t.object_id,
ix.index_id,
NULL
) AS ios
WHERE
CASE
WHEN ddps.row_count = 0 THEN 0
ELSE
(
(
CONVERT
(
FLOAT,
(
ios.nonleaf_insert_count +
ios.nonleaf_update_count +
ios.leaf_insert_count +
ios.leaf_update_count
)
) /
CONVERT
(
FLOAT,
ddps.row_count
)
) * 100.0
)
END >= 10.0
AND t.is_ms_shipped = 0
AND t.name NOT LIKE 'MSmerge%'
AND ix.index_id > 0
) AS MasterIndexes
CROSS APPLY master.dbo.tfn_IndexPhysicalStats_select
(
MasterIndexes.DatabaseID,
MasterIndexes.ObjectID,
MasterIndexes.IndexID,
MasterIndexes.PartitionNumber,
'SAMPLED'
) AS ips
) AS MasterIndexList
CROSS APPLY
(
SELECT
'ALTER INDEX ' +
MasterIndexList.IndexName +
' ON ' +
MasterIndexList.SchemaName + '.' + MasterIndexList.TableName +
' REBUILD WITH(' +
'FILLFACTOR = ' +
CASE
WHEN MasterIndexList.fill_factor = 0 THEN '100'
ELSE CONVERT(VARCHAR(3), MasterIndexList.fill_factor)
END + ', ' +
'SORT_IN_TEMPDB = ' +
CASE
WHEN MasterIndexList.SortInTempDB = 1 THEN 'ON'
ELSE 'OFF'
END + ', ' +
'ONLINE = ' +
CASE
WHEN MasterIndexList.OnlineIndicator = 1 THEN 'ON'
ELSE 'OFF'
END + ', ' +
'ALLOW_ROW_LOCKS = ' +
CASE
WHEN MasterIndexList.[allow_row_locks] = 1 THEN 'ON'
ELSE 'OFF'
END + ', ' +
'ALLOW_PAGE_LOCKS = ' +
CASE
WHEN MasterIndexList.[allow_page_locks] = 1 THEN 'ON'
ELSE 'OFF'
END + ');' AS [DDL],
1 AS DDLOrdinal
WHERE MasterIndexList.RebuildIndicator = 1
UNION ALL
SELECT
'ALTER INDEX ' +
MasterIndexList.IndexName +
' ON ' +
MasterIndexList.SchemaName + '.' + MasterIndexList.TableName +
' REORGANIZE;' AS [DDL],
2 AS DDLOrdinal
WHERE MasterIndexList.ReorganizationIndicator = 1
UNION ALL
SELECT
'UPDATE STATISTICS ' +
MasterIndexList.SchemaName + '.' + MasterIndexList.TableName + ' ' +
MasterIndexList.IndexName + ' ' +
'WITH FULLSCAN;' AS [DDL],
3 AS DDLOrdinal
WHERE MasterIndexList.UpdateStatisticsIndicator = 1
AND MasterIndexList.RebuildIndicator = 0
AND STATS_DATE(MasterIndexList.ObjectID, MasterIndexList.IndexID) <= DATEADD(hh, -20, GETDATE())
) AS [DDL]
ORDER BY
ObjectID ASC,
IndexID ASC,
DDLOrdinal ASC;
OPEN ddl_cursor;
FETCH NEXT FROM ddl_cursor
INTO @DDL;
WHILE @@FETCH_STATUS = 0
BEGIN
EXECUTE sys.sp_executesql
@stmt = @DDL;
FETCH NEXT FROM ddl_cursor
INTO @DDL;
END
CLOSE ddl_cursor;
DEALLOCATE ddl_cursor;
GO
বরাবরের মতো, আপনার মাইলেজটি পৃথক হতে পারে তবে আপনার প্রয়োজন অনুসারে এই স্ক্রিপ্টগুলি ব্যবহার / পরিবর্তন করতে নির্দ্বিধায়।
ভাল একটা আছে,
ঔজ্বল্যহীন