· One limitation of the automatic update logic is that it tracks changes to columns in the statistics, but not changes to columns in the predicate. If there are many changes to the columns used in predicates of filtered statistics, consider using manual updates to keep up with the changes. ...
有关AUTO_STATISTICS_UPDATE 选项的详细信息,请参阅 ALTER DATABASE SET 选项 (Transact-SQL)。有关禁用和重新启用统计信息更新的详细信息,请参阅使用统计信息提高查询性能。 <update_stats_stream_option> 标识为仅供参考。不提供支持。不保证以后的兼容性。 注释 何时使用 UPDATE STATISTICS 有关何时使用 UPDATE STA...
Sql="select * from 数据表 where 字段名=字段值 order by 字段名 [desc]" Sql="select * from 数据表 where 字段名 like '%字段值%' order by 字段名 [desc]" 模糊查询 Sql="select top 10 * from 数据表 where 字段名 order by 字段名 [desc]" 查找数据库中前10记录 Sql="select top n * f...
Transact-SQL 语法约定 语法 复制 UPDATE STATISTICS table | view [ { { index | statistics_name } | ( { index |statistics_name } [ ,...n ] ) } ] [ WITH [ [ FULLSCAN ] | SAMPLE number { PERCENT | ROWS } ] | RESAMPLE | <update_stats_stream_option> [ ,...n ] ] [ [ , ...
Applies to: SQL Server 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 ...
UPDATE STATISTICS (Transact-SQL) 数据操作语言 (DML) 语句 (Transact-SQL) 数据类型 (Transact-SQL) EXECUTE 表达式(Transact-SQL) 语言元素 (Transact-SQL) 管理命令 运算符 (Transact-SQL) 谓词(Transact-SQL) PRINT (Transact-SQL) RAISERROR 安全语句 ...
Recovering database with memory-optimized tables involves hydrating the contents of checkpoint files... Date: 08/28/2017 Persisting statistics sampling rate When SQL Server creates or updates statistics and a sampling rate is not manually specified, SQL... Date: 08/11/2017 New in SSMS: Searching...
Setting STATISTICS_NORECOMPUTE to ON doesn't prevent the update of index statistics that occurs during the index rebuild operation. STATISTICS_INCREMENTAL = { ON | OFF } Applies to: SQL Server 2014 (12.x) and later versions, Azure SQL Database, and Azure SQL Managed Instance When ON, the ...
The scope of the audit defines the boundaries and the specific areas of the MSSQL databases that will be subject to examination during the audit process. This includes, but is not limited to, the evaluation of specific databases, tables, stored procedures, user roles, security measures, access...
UPDATE (SQL Server Compact) UPDATE STATISTICS (SQL Server Compact) UPPER (SQL Server Compact) USE (SQL Server Compact) WHERE 子句 (SQL Server Compact) OLE DB 提供程序参考 (SQL Server Compact) 本机编程参考 (SQL Server Compact) Microsoft.SqlServerCe.Management.Scripting 命名空间 Microsoft.SqlServerCe...