SQL UPDATESTATISTICSt1 (a, b); SQL UPDATESTATISTICSt1 (a)WITHSAMPLE10ROWS; SQL UPDATESTATISTICSt1 (a)WITHNORECOMPUTE; SQL UPDATESTATISTICSt1 (a)WITHINCREMENTAL =ON; SQL UPDATESTATISTICSt1 (a)WITHSTATS_STREAM =0x
如需有關 AUTO_STATISTICS_UPDATE 選項的詳細資訊,請參閱<ALTER DATABASE SET 選項 (Transact-SQL)>。如需有關停用並重新啟用統計資料更新的詳細資訊,請參閱<使用統計資料來改善查詢效能>。 <update_stats_stream_option> 僅供參考之用。不支援。我們無法保證未來的相容性。 備註 使用UPDATE STATISTICS 的時機 如...
SQL UPDATESTATISTICSt1 (a)WITHNORECOMPUTE; SQL UPDATESTATISTICSt1 (a)WITHINCREMENTAL =ON; SQL UPDATESTATISTICSt1 (a)WITHSTATS_STREAM =0x01; 权限 要求具有对表或视图的ALTER权限。 示例 A. 更新表的所有统计信息 以下示例更新SalesOrderDetail表的所有统计信息。
Dimitri, Auto-stats doesn't effect filtered indexes or filtered stats at all. Those must be done manually (and as far as I know this isn't changing in the future). Denny Anonymous March 06, 2012 Is there any consequence of tempdb growth with this trace flag? I hav...
The example can be executed in Visual Studio with theAzure Data Lake Tools plug-in. The script can be executedlocally. An Azure subscription and Azure Data Lake Analytics account is not needed when executed locally. The following example does a full update of the statistics,ordersStats, within...
更多信息关于如何更新所有数据库中的用户定义的表和系统内部表, 请参考存储过程sp_updatestats (Transact-SQL). 举例, 下面的命令调用sp_updatestats存储过程来更新数据库里所有的统计信息. EXEC sp_updatestats 确定统计信息最后更新的时间 要确定统计信息最后更新的时间, 请使用STATS_DATE函数. ...
SQL Server Engine DB Management All 1943179 Fixes an assertion failure (Location: schemamgr.cpp:1253; Expression: !regularPVSHobt->m_NeedsRefresh && !longtermPVSHobt->m_NeedsRefresh) that may occur when you run sys.dm_tran_persistent_version_store_stats on the secondary replica of...
This Cumulative Update includes the recently released GDR for SQL Server 2022 (KB5021522 - Description of the security update for SQL Server 2022 GDR: February 14, 2023). For more information about SQL Servicing releases, see Servicing models for SQL Server. Known issues in this upd...
This update contains 29 fixes that were issued after the release of SQL Server 2019 Cumulative Update 20, and it updates components in the following builds:SQL Server - Product version: 15.0.4316.3, file version: 2019.150.4316.3 Analysis Services - Product version: 15.0.35.39, file version: ...
换句话说,当你删除一行时,虽然逻辑上这行没了,但实际上它们并没有被删除,直到SQL Server认为满足安全条件来实际删除这行。 一个虚影记录的例子 为了更好的理解虚影记录,我们使用一个有20000行记录的非聚集索引,使得数据填充满行,我们使用事务删除大约一半的数据但不Commit.然后通过Sys.dm_index_physical_stats来观...