ALTER TABLE with variable TableName ALTER vs UPDATE when creating a new column with default value. Alternate queries for MERGE Alternative for OR in WHERE clause Alternative for PIVOT Alternative of CURSOR in SQL to improve performance ? alternative query for in clause Alternative to Full Outer Joi...
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, on a large table avoid using fullscan and just let SQL Server choose the...
UPDATE STATISTICS table_or_indexed_view_name [ { { index_or_statistics__name } | ( { index_or_statistics_name } [ ,...n ] ) } ] [ WITH [ [ FULLSCAN ] | SAMPLE number { PERCENT | ROWS } ] | RESAMPLE | <update_stats_stream_option> [ ,...n ] ] [ [ , ] [ ALL | CO...
UPDATE STATISTICS t1 (a) WITH SAMPLE 10 ROWS; SQL Көшіру UPDATE STATISTICS t1 (a) WITH NORECOMPUTE; SQL Көшіру UPDATE STATISTICS t1 (a) WITH INCREMENTAL = ON; SQL Көшіру UPDATE STATISTICS t1 (a) WITH stats_stream = 0x01; Р...
UPDATESTATISTICSCustomer (CustomerStats1)WITHFULLSCAN; G. Update all statistics on a table The following example updates all statistics on theCustomertable. SQL UPDATESTATISTICSCustomer; H. Using CREATE STATISTICS with AUTO_DROP To use auto drop statistics, just add the following to the "WITH" cla...
UPDATESTATISTICSCustomer (CustomerStats1)WITHFULLSCAN; G. 更新表的所有统计信息 以下示例更新Customer表的所有统计信息。 SQL UPDATESTATISTICSCustomer; H. 将 CREATE STATISTICS 与 AUTO_DROP 配合使用 要使用自动删除统计信息,只需将以下内容添加到统计信息创建或更新的“WITH”子句中。
UPDATESTATISTICSCustomer (CustomerStats1)WITHFULLSCAN; G. テーブルのすべての統計を更新する 次の例では、Customerテーブルのすべての統計を更新します。 SQL UPDATESTATISTICSCustomer; H. AUTO_DROP での CREATE STATISTICS の使用 自動削除の統計を使用するには、統計の作成または更新の "WITH" 句に、...
UPDATESTATISTICSCustomer (CustomerStats1)WITHFULLSCAN; G. 更新表的所有统计信息 以下示例更新Customer表的所有统计信息。 SQL UPDATESTATISTICSCustomer; H. 将 CREATE STATISTICS 与 AUTO_DROP 配合使用 要使用自动删除统计信息,只需将以下内容添加到统计信息创建或更新的“WITH”子句中。
UPDATESTATISTICSCustomer (CustomerStats1)WITHFULLSCAN; G. Update all statistics on a table The following example updates all statistics on theCustomertable. SQL UPDATESTATISTICSCustomer; H. Using CREATE STATISTICS with AUTO_DROP To use auto drop statistics, just add the following to the "WITH" cla...
要确定统计信息最后更新的时间, 请使用STATS_DATE函数. 权限 如要运行这个命令, 你需要在表或视图上有ALTER权限. 例子 A. Update all statistics on a table The following example updates the statistics for all indexes on theSalesOrderDetailtable.