Here’s a version of the above query that performs much better. sys.dm_db_index_physical_stats...
STATS_DATE(object_id, index_id)ASupdate_dateFROMsys.indexesWHEREobject_id=OBJECT_ID('[Sales].[SalesOrderDetail]');--查看所有统计信息更新时间selects.name,STATS_DATE(s.object_id, stats_id)ASupdate_datefromsys.stats sWHEREs.object_id=OBJECT_ID('...
不过,要避免结果集中包含重复行则更困难,这需要把select语句的含义修改成目前使用的select dstinct语句,同时也会带来其他的复杂性,尤其是在进行聚合操作时,和大多数SQL语言一样,T-SQL在很多情况下都支持重复集合,但不总是这样,例如,TSQL不支持 except all和intersect all,只支持except distinct和intersect distinct S...
The phrase “If it isn’t broken, don’t fix it” is made in reference to SQL Server Maintenance Plans and more specifically the Index Rebuild Task. People without much SQL Server experience will usually setup a maintenance plan job to perform basic database tasks like rebuilding...
FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL15.MSSQLSERVER\MSSQL\DATA\HRMS_Account_log.ldf' ); GO To demonstrate, run the following query to view the details of the database: Output Example 3: Create a Memory-optimized (In-memory OLTP) Database ...
EsentFragmentationException 類別 EsentGivenLogFileHasBadSignatureException 類別 EsentGivenLogFileIsNotContiguousException 類別 EsentIllegalOperationException 類別 EsentInconsistentException 類別 EsentIndexBuildCorruptedException 類別 EsentIndexCantBuildException 類別 EsentIndexDuplicateException 類別 EsentIndexHas...
SQL Server performance tuning and indexes are like two peas in a pod. Indexes are the database objects that help to speed up accessing data for this reason these objects play a key-role in the database tuning. So monitoring the index fragmentation and usage statistics extremely important to ...
CreateIndexGrbit 枚举 CreateInstanceGrbit 枚举 CreateTableColumnIndexGrbit 枚举 DateTimeColumnValue 类 defragGrbit 枚举 DeleteColumnGrbit 枚举 DetachDatabaseGrbit 枚举 DoubleColumnValue 类 DupCursorGrbit 枚举 EndExternalBackupGrbit 枚举 EndSessionGrbit 枚举 EnumerateColumnsGrbit 枚举 EscrowUpdateGrbit 枚举...
Deadlocks after index rebuild We rebuilt a bunch of indexes that had avg_fragmentation_in_percent>30. Now we have 1 job that i… btork 10replies 2 months, 2 weeks ago By:ScottPletcher Viewing 15 topics - 1 through 15 (of 3,083 total) ...
I think this is the query I arrived at for getting the next PK value. Ok you guys... you wanted me to kind of wait on you... look at this code and then save his life because that's death by SQL and all of you know it. ...