首先,打开SQL Server Management Studio并连接到你的数据库服务器。 步骤2:选择需要更新统计信息的数据库 在Object Explorer中,展开你的数据库,然后右键单击数据库名称,选择"New Query"。 步骤3:执行Update Statistics命令 在查询窗口中,输入以下命令来更新数据库中所有表的统计信息: USEYou
SQL Server 和 Azure SQL Database 的語法。 syntaxsql UPDATESTATISTICStable_or_indexed_view_name[ { {index_or_statistics__name} | ( {index_or_statistics_name} [ , ...n ] ) } ] [WITH[FULLSCAN[ [ , ]PERSIST_SAMPLE_PERCENT= {ON|OFF} ] |SAMPLEnumber {PERCENT|ROWS} [ [ , ]PERSIST...
有关该选项的详细信息AUTO_STATISTICS_UPDATE,请参阅ALTER DATABASE SET 选项。 INCREMENTAL = { ON | OFF } 适用于:SQL Server 2014 (12.x) 及更高版本 当ON,根据分区统计信息重新创建统计信息。 删除统计信息树时OFF,SQL Server 会重新计算统计信息。 默认值为OFF。
那么SQL Server 2016在更新统计数据时的默认行为是对于大表它会根据表的数据降低这个20%的数字,这样traceflag 2371就没用了。 2)UPDATE STATISTICS 选用SAMPLE是可以并行去取样。 参考: Changes to automatic update statistics in SQL Server – traceflag 2371 What's New in Database Engine...
Database Tuning Advisor Execution plans In-Memory OLTP Partitions Plan guides Query Store Query Tuning Assistant Resource governor Statistics Statistics Create Modify Delete View Properties Rename Update Query data Reporting & Analytics Security Tools ...
Using SQL Server Management Studio (SSMS) Open SSMS and connect to the SQL Server instance. Expand the “Databases” folder and locate the target database. Right-click on the database and select “Tasks” > “Manage Statistics”. In the “Manage Statistics” dialog, select the desired table...
Use the Update Statistics Task dialog to update Microsoft SQL Server information about the data in the tables and indexes. This task resamples the distribution statistics of each index created on user tables in the database. The distribution statistics are used by SQL Server to optimize...
Use the Update Statistics Task dialog to update Microsoft SQL Server information about the data in the tables and indexes. This task resamples the distribution statistics of each index created on user tables in the database. The distribution statistics are used by SQL Server to optimize navigation...
COUNT (SQL Server Compact) CREATE DATABASE (SQL Server Compact) CREATE INDEX (SQL Server Compact) CREATE STATISTICS (SQL Server Compact) CREATE TABLE (SQL Server Compact) DATALENGTH (SQL Server Compact) DATEADD (SQL Server Compact) DATEDIFF (SQL Server Compact) DATENAME (SQL Server Compact) DATE...
When the number of changes on a table exceeded a certain percentage threshold an automatic update of the statistics would be executed. Over the next releases up to SQL Server 2005, several changes were made to the principal data collected in the statistics and the asynchrono...