syntaxsql UPDATESTATISTICS[schema_name. ]table_name[ ( {statistics_name} ) ] [WITH{FULLSCAN|SAMPLEnumberPERCENT} ] [;] 备注 Azure Synapse Analytics 中的无服务器 SQL 池不支持此语法。 参数 table_or_indexed_view_name 包含统计信息对象的表或索引视图的名称。
syntaxsql UPDATESTATISTICS[schema_name. ]table_name[ ( {statistics_name} ) ] [WITH{FULLSCAN|SAMPLEnumberPERCENT} ] [;] 注意 Azure Synapse Analytics 的無伺服器 SQL 集區不支援此語法。 引數 table_or_indexed_view_name 包含
Typically fullscan is used in maintenance plans that are run off hours. SQL Server does update stats automatically by default, but there are reasons to update them in your maintenance scripts that the auto update doesn't cover. If you want to run update statistics while your DB is busy, ...
UPDATE STATISTICS ON < table_name > [ . <index_name> ] WITH FULLSCAN {, NORECOMPUTE } Arguments table_name Specifies the name of the table on which to update the statistics. index_name The index on which to update the statistics. If an index is not specified, all distribution statistic...
Type of scan used to gather updated statistics. Full scan Read all rows in the table or view to gather the statistics. Sample by Specify the percentage of the table or indexed view, or the number of rows to sample when collecting statistics for larger tables or views. View T-S...
Type of scan used to gather updated statistics. Full scan Read all rows in the table or view to gather the statistics. Sample by Specify the percentage of the table or indexed view, or the number of rows to sample when collecting statistics for larger tables or views. View T-SQL View th...
Assume that you use Microsoft SQL Server 2016 Always On Availability Groups. After statistics are updated by using the FULLSCAN option on the primary replica, the statistics on the secondary replica become stale or ...
update statistics t with fullscan go go --this will create a stats on c2 select count(*) from t where c2 =1 go Because I ran update statistics, the follow query will show that the t1_indx1 and _WA_Sys_00000002_162F4418 have the same value for laste_updated ...
'VARCHAR' is not a recognized built-in function name. 'WHEN MATCHED' cannot appear more than once in a 'UPDATE' clause of a MERGE statement. "EXECUTE AT" with Dynamic Linked Server Name "explicit value must be specified for identity column in table" error in SQL 2000 "FROM clause have ...
But SQL Server 2012 changed the behavior for partitioned table. If a table is partitioned, ALTER INDEX REBUILD will only update statistics for that index with default sampling rate. In other words, it is no longer a FULLSCAN. This is documented inhttp://technet.mic...