T-SQL---触发器 createtriggertrig_transInfoontransInfoforinsertasdeclare@typechar(4),@outMoneyMoneydeclare@myCardIDchar(10),@balanceMoneyselect@type=transType,@outMoney=transMoney,@myCardID=cardIDfrominserted --从inserted表获取交易类型、教员金额等if(@type='支取') --根据交易类型,减少或增加对应卡号...
CREATETRIGGERDenyCreate_Al1ServerONALLSERVERFORCREATEDATABASE,ALTERDATABASEASBEGINPRINT'用户没有权限创建或修改服务器上的数据库!'ROLLBACKTRANSACTIONEND 定义触发器-使用SSMS 修改触发器-使用T-SQL ALTERTRIGGER触发器名ON表|视图 AFTER [INSERT][DELETE][UPDATE]AS-- SQL语句 修改触发器-使用SSMS 重命名触发器...
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...
SQL命令 CREATE TRIGGER(一) REFERENCING子句允许指定可用于引用列的别名。引用旧行允许在UPDATE或DELETE触发器期间引用列的旧值。引用新行允许在INSERT或UPDATE触发器期间引用列的新值。...例如,如果更新记录7会触发触发器,则该触发器的代码块不能更新或删除记录7。触发器可以修改调用该触发器的同一个表,但触发事件...
FeatureDDL triggersMemory-optimized tables and natively compiled stored procedures cannot be created or dropped if there is a server or database trigger for that DDL operation. Remove the server and database triggers on CREATE/DROP TABLE and CREATE/DROP PROCEDURE. ...
Advanced considerations for natively compiled modules The types of natively compiled modules available through Transact-SQL are: Natively compiled stored procedures (native procs). Natively compiledscalar user-defined functions. Natively compiled triggers (native triggers). ...
Create temp table and insert records in a while loop Create trigger based on two tables Create trigger does not work inside if statement CREATE TRIGGER IF FIELD IS EMPTY DO NOT INSERT create trigger on northwind datase .. please help create TRIGGER remove white spaces from a fields in table...
内存数据库将原本存储在Disk上的数据,存储在内存中,利用内存的高速访问优势实现数据的快速查询和更新,但是,内存数据库,不仅仅是存储空间的变化,Hekaton 内存数据库访问引擎实现本地编译模块(Natively...,SQL Server直接将TSQL脚本编译成机器代码;SQL Server 2016支持本地编译的模式有:存储过程(SP),触发器(Trigger),...
To test the trigger, first create the table TestDrop and insert a row into it by running the following code: Copy CREATE TABLE TestDROP(col1 INT) INSERT INTO TestDROP VALUES(1) Next, attempt to drop the table: Copy DROP TABLE TestDROP The DROP attempt is trapped and a message ...
(11)NULL, audit_user sysnameDEFAULTSUSER_SNAME(), audit_changed DATETIMEDEFAULTGETDATE() ); GOCREATETRIGGERdbo.updEmployeeDataONdbo.employeeDataAFTERUPDATEAS/* Check whether columns 2, 3 or 4 have been updated. If any or all columns 2, 3 or 4 have been changed, create an audit record. ...