[INSERT][DELETE][UPDATE]AS-- SQL语句 修改触发器-使用SSMS 重命名触发器-使用T-SQL EXECUTEsp_rename 触发器旧名 触发器新名; 禁用触发器-使用T-SQL DISABLETRIGGER触发器名|ALLON表名; 或 ALTERTABLE表名 DISABLETRIGGER触发器名; 禁用触发器-使用SSMS 启用触发器-使用T-SQL ENABLETRIGGER触发器名|ALLON表...
触发器英文名为trigger,也就是板机的意思,与枪支的操作原理类似,只有扣动板机,子弹才会飞出。将该词用在SQL SERVER环境中,表示当表发生了insert 、update、delete操作之后,才会执行的t-SQL程序,这样的程序就叫触发器。 应用场景: 触发器可以查询其他表,而且可以包含复杂的SQL语句。它们主要用于强制复杂的业务规则或要...
先看示例代码: 1createtriggertri_order_NowOrderPrice2onorders afterinsert3as4begin5declare@NowOrderPricemoney;6declare@BuyNumberint;7declare@ProductIDint;8select@ProductID=ProductID,@BuyNumber=BuyNumberfrominserted;9select@NowOrderPrice=inserted.BuyNumber*inserted.BuyPricrfrominserted;10updateorderssetNowO...
在SQL Server 2008中,设要在T表上创建一个针对插入和更新操作的后触发型触发器。请补全下列语句: CREATE TRIGGER tri_T ON T1 1INSERT, UPDATE AS… (分数:2.00)相关知识点: 试题来源: 解析 解析:AFTER或FOR[解析] 使用AFTER或FOR选项定义的触发器为后触发的触发器,使用INSTEAD OF选项定义的触发器为前触发...
SQL Server 创建触发器(trigger) 2017-04-21 02:04 −触发器简介: 触发器是一种特殊的存储过程,它的执行不是由程序调用,也不是手动执行,而是由事件来触发。触发器是当对某一个表进行操作。例如:update、insert、delete这些操作的时候,系统会自动调用执行该表上对应的触发器。 触发器分类: 1、DML( 数据操纵...
UWP 使用 wpf 的 Trigger 安装 Behaviors以前的代码UWP 使用 Triggertrigger使用户能够将事件有效...
Namespace: Microsoft.SqlServer.TransactSql.ScriptDom Assembly: Microsoft.SqlServer.TransactSql.ScriptDom.dll Package: Microsoft.SqlServer.DacFx v150.5282.3 Exposes the trigger event types.C# 复制 public static class TSqlTriggerEventTypeHelper
AFTER INSERT and AFTER UPDATE triggers on same table After INSERT Trigger question - how to use value from last added record Age Bucket in sql Age calculation in report builder query Aggregated CASE expressions versus the PIVOT operator… Is one better than the other? Aging Report SQL Query Al...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Memory-optimized tables, natively compiled stored procedures, and user-defined functions do not support the full Transact-SQL surface area that is supported by disk-based tables, interpreted Transact-SQL stored procedures, and user...
SQL Server Yukon Beta 1 introduces support for Data Definition Language (DDL) triggers, allowing you to trap DDL operations and react to them, optionally rolling back the activity. DDL triggers work synchronously, right after the triggering event, similar to the way triggers from previous version...