syntaxsql复制 CHANGETABLE( {CHANGES<table_name>,<last_sync_version>|VERSION<table_name>,<primary_key_values>} , [FORCESEEK] ) [AS]<table_alias>[ (<column_alias>[ ,...n ] )<primary_key_values>::=(<column_name>[ ,
syntaxsql複製 CHANGETABLE( {CHANGES<table_name>,<last_sync_version>|VERSION<table_name>,<primary_key_values>} , [FORCESEEK] ) [AS]<table_alias>[ (<column_alias>[ ,...n ] )<primary_key_values>::=(<column_name>[ , ...n ] ) , (<value>[ , ...n ] ) ...
对Microsoft SQL Server 2012 或 SQL Server 2014 中的 SQL Server 数据库表启用更改跟踪。 基表包含非常少的数据行。 例如,表中包含一个行。 "更改跟踪" 侧表(内部系统表)包含大约1000行数据。 Syscommittab ...
ALTERTABLEEmployee ENABLE CHANGE_TRACKINGWITH(TRACK_COLUMNS_UPDATED=ON); 那么现在我们开始跟踪表的修改 updateemployeesetPhone1='12121212'whereEmployeeID='E001' updateemployeesetPhone1='21212121'whereEmployeeID='E002' 然后我们查看修改记录: SELECTISNUll(pn.EmployeeID,0)asEmployeeID fromchangetable(changes...
在SQL Server 2008 或 SQL Server 2008 R2 中的表上启用更改跟踪。 该表具有许多行。 例如,表包含的行数超过10000。 使用CHANGETABLE 函数运行一个查询,该查询返回有关表的更改跟踪信息。 在这种情况下,查询需要很长时间才能返回结果。 解决方案 累积更新信息 ...
General Tablespaces General Tablespaces，通用表空间，和系统表空间idata1类似，一般指的是我们自己使用CREATE tablespace语法创建的共享InnoDB表空间。 创建语法为：CREATETABLESPACEtablespace_nameADDDATAFILE'file_name' [FILE_BLOCK_SIZE=value] [ENGINE [=] engine_name]在数据目录中创建一个通用表空间：CREATE...
Transact-SQL Syntax Conventions Syntax CHANGETABLE ( { CHANGES table , last_sync_version | VERSION table , <primary_key_values> } ) [AS] table_alias [ ( column_alias [ ,...n ] ) <primary_key_values> ::= ( column_name [ , ...n ] ) , ( value [ , ...n ] ) ...
Based on the retention period setting of the database, each internal on-disk table is purged of its expired records. A stored procedure was added in Service Packs for SQL Server 2014 (12.x) and SQL Server 2016 (13.x) for performing manual cleanup for the internal Change Tracking internal...
()method - we need a way to cleaning up the SqlTableDependency infrastructure. TheStart()method takes an optional parameterwatchDogTimeOut. If there are no listeners waiting for notifications, the SqlTableDependency infrastructure will be removed after this period of time. The default value of...
id=96145Since pt-online-schema change needs to rename the old<->newtablesasthe final step,and the requested table has FKs,it cannot be executed under the current MySQL version\n' 从这个描述中,可以看到,问题的反馈是这个要修改的目标表拥有外键,但是实际上,这个表的定义SQL中,没有外键,所以我怀疑...