但在SQL Server 2014里,你就可以克服这个限制,因为现在你可以在CREATE TABLE语句行里创建索引。来看下面的代码: 1ALTERPROCEDUREPopulateTempTable2AS3BEGIN4--Create a new temp table5CREATETABLE#TempTable6(7Col1INTIDENTITY(1,1)PRIMARYKEY,--This
在写SQL Server存储过程中,如果存储过程中定义了临时表, 有些人习惯在存储过程结束的时候一个一个显式地删除过程中定义的临时表(drop table #tName),有些人又没有这个习惯, 对于不明真相的群众或者喜欢思考的人会问,存储过程中定义的临时表,最后要不要主动删除,为什么? 或者说是不是存储过程结束的时候删除临时...
When you use TVP, SQL Server internally uses temp table to store the data. Starting SQL Server 2005, temp tables can be cached for re-used. Caching reduces contentions such as page latch contentions on system tables which can occur as temp tables are created and d...
参考链接:https://www.mssqltips.com/sqlservertip/4406/sql-server-temporary-table-caching/ http://sqlblog.com/blogs/paul_white/archive/2012/08/17/temporary-object-caching-explained.aspx http://www.davewentzel.com/content/do-you-explicitly-drop-your-temp-tables...
Identity caching is used to improve INSERT performance on tables with identity columns.Note: Starting with SQL Server 2017 (14.x), to accomplish this at the database level, see the IDENTITY_CACHE option in ALTER DATABASE SCOPED CONFIGURATION.Scope: Global only. 460 Replaces data truncation ...
Applies to: SQL Server 2016 (13.x) and later versions.Scope: Global or session. 715 Enables table lock for bulk load operations into a heap with no nonclustered indexes. When this trace flag is enabled, bulk load operations acquire bulk update (BU) locks when bulk copying data into a ...
sql server主从数据库 sqlserver2008主从复制 1. 为什么要做主从复制? a.在业务复制的系统中,在业务复杂的系统中,有这么一个情景,有一句sql语句需要锁表,导致暂时不能使用读的服务,那么就很影响运行中的业务,使用主从复制,让主库负责写,从库负责读,这样,即使主库出现了锁表的情景,通过读从库也可以保证业务的...
Reduce round trips to the server. Can have a table structure of different cardinality. Are strongly typed. Enable the client to specify sort order and unique keys. Are cached like a temp table when used in a stored procedure. Starting with SQL Server 2012 (11.x) and later versions...
Temporary table changed Stored procedure created with the RECOMPILE query hint or which uses OPTION (RECOMPILE) Detection You can use System Monitor (PerfMon) or SQL Trace (SQL Server Profiler) to detect excessive compiles and recompiles. ...
Reduce round trips to the server. Can have a table structure of different cardinality. Are strongly typed. Enable the client to specify sort order and unique keys. Are cached like a temp table when used in a stored procedure. Starting with SQL Server 2012 (11.x) and later versions, table...