CREATETRIGGERdbo.trGroups ONgroups AFTERINSERT,UPDATE,DELETE AS --This trigger submits a cached rates delete job for modified groups. --It also updates the groups' last modified columns for modified groups. --It also updates the groups' state (if currently unspecified) based on --the (first...
create table trigger_a_order_2 like trigger_a_order_1; 1. insert 触发器 DELIMITER $ create trigger trigger_a_order_1_trigger after insert on trigger_a_order_1 for each row begin INSERT INTO trigger_a_order_2(order_id,order_sn,user_nick,user_mobile,address,status,payment) VALUES(new.or...
INSERT INTO users (username, email, password) VALUES ('john_doe', 'john.doe@example.com', 'secure_password'); 查看触发器 要查看数据库中的触发器,可以使用SHOW TRIGGERS语句。例如,要查看当前数据库中的所有触发器,可以使用以下SQL语句: SHOW TRIGGERS; 修改触发器 要修改触发器的定义,可以使用DROP TR...
5.执行触发操作的编程语句。 CREATE TRIGGER语句基本语法格式如下
AFTER类的语法 CREATE TRIGGERtf_name ONtable AFTERINSERT,UPDATE--定义都个触发,可以用逗号隔开 AS BEGIN SET NOCOUNT ON --可有可无 DECLARE @.. ;--声明变量 select insert ... --相应的select语句,insert语句(update语句、delete语句) SET NOCOUNT OFF--可有可无 ...
AFTER INSERT, UPDATE, DELETE AS -- This trigger submits a cached rates delete job for modified groups. -- It also updates the groups' last modified columns for modified groups. -- It also updates the groups' state (if currently unspecified) based on ...
CREATE TRIGGER 触发器名称 {BEFORE | AFTER} {INSERT | UPDATE | DELETE} ON 表名 FOR EACH ROW 触发器执行的语句块; 举个例子🌰 假设你想在向test_trigger表插入数据后,自动在test_trigger_log表中插入一条日志信息。你可以这样创建触发器: DELIMITER // CREATE TRIGGER after_insert AFTER INSERT ON test...
create trigger mytrg on 表名 instead of insert as declare myii begin select myii=count from inserted if(@myii>0)insert into 表名 select from inserted else begin --这里执行你说的"满足条件是触发"的事情 --范例中是count<=0执行的操作,这里我是不执行插入,所以什么都不需要写 end e...
* After Update 触发器:在行更新之后执行 * After Delete 触发器:在行删除之后执行 例如: “`sql CREATE TRIGGER Insert_Log ON myTable AFTER INSERT AS BEGIN INSERT INTO Log_Table (Action,UserName) VALUES (‘Insert’,USER_NAME() ) END 2、BEFORE触发器:BEFORE触发器在事件发生之前执行,用于检验或者更改...
drop trigger trigger1 end go create trigger trigger1 on tbl_qxt after insert as begin if exists(select 1 from tbl_user u inner join inserted i on u.CREATORID=i.CREATORID)begin print 1 update tbl_qxt set [COUNT]=cast(i.[COUNT] as varchar) +'【'+cast(u.USERNAME as ...