mysql的触发器怎么写

mybatis 怎么写mysql触发器

mysql数据表：

create table driver_order (

id int(11) unsigned NOT NULL AUTO_INCREMENT,

primary key (id)

);

创建触发器：

DELIMITER $$

CREATE TRIGGER seq_driver_order_number BEFORE INSERT ON driver_order

FOR each ROW

BEGIN

DECLARE seq_type INT(10);

SET seq_type = getUserNo(NEW.create_user);

SET NEW.order_number = getNextCommSequence("motor", seq_type);

END$$

DELIMITER ;

以下是mybatis操作触发器的配置方法：

insert id="insertOrder" parameterType="DriverOrder"

selectKey keyProperty="id,orderNumber" keyColumn="ID,ORDER_NUMBER" order="AFTER" resultType="java.util.Map"

SELECT ID,ORDER_NUMBER FROM DRIVER_ORDER where ID = last_insert_id()

/selectKey

INSERT INTO

DRIVER_ORDER(ID,ORDER_NUMBER,AREA_START,AREA_END,CREATE_USER,CREATE_TIME)

VALUES

(#{id},

#{orderNumber,jdbcType=VARCHAR},

#{areaStart,jdbcType=VARCHAR},

#{areaEnd,jdbcType=VARCHAR},

#{createUser,jdbcType=VARCHAR},

now())

/insert

php+myql数据库触发器怎么写

如果公司里有上百个表要做触发器,如果手动写代码的话.很累,一个小程序,自动生成mysql的触发代码.

php

$dbname = 'test';//数据库

$tab1 = 'user'; //执行的表

$conn = mysql_connect("localhost","root", "root",$dbname) or

die("请检查你的主机名数据库用户名和密码");

mysql_select_db($dbname, $conn) or die("数据库还没有连接");

$query = mysql_query("SHOW COLUMNS FROM $tab1");mysql_query("");

while($row=mysql_fetch_array($query,MYSQL_NUM)){//得到表的字段数组

$temp[] = $row[0];

$str1 .= '+'.$row[0].'+,';

}

//insert触发器

$inser_str = "h1{$tab1}表的insert触发器/h1";

$inser_str .= "create trigger ".$tab1."_insert brAFTER INSERT

bron ".$tab1."br";

//update触发器

$update_str = "h1{$tab1}表的update触发器/h1";

$update_str .= "create trigger ".$tab1."_updatebr";

$update_str .= "after updatebr";

$update_str .= "on ".$tab1.'br';

$update_str .= "for each rowbr";

new.id;//这里的where id = new.id要手动改一下.改成主键的字段名";

//delete触发器

$delete_str = "h1{$tab1}表的delete触发器/h1";

$delete_str .= "create trigger ".$tab1."_deletebr";

$delete_str .= "after deletebr";

$delete_str .= "on ".$tab1."br";

$delete_str .= "for each row br";

new.id要手动改一下.改成主键的字段名br";

echo $inser_str;

echo $update_str;

echo $delete_str;

echo

更好的保证数据ID的对应,如果用before

href=""华夏之星/a';

echo EOT

create trigger 触发器名称br

{ before | after}br

{insert | update | delete}br

on 表名br

for each rowbr

触发器SQL语句br

参数详解如下：br

create trigger 触发器名称：创建一个新触发器,并指定触发器的名称.br

{ before | after}：用于指定在insert、update或delete语句执行前触发还是在语句执行后触发.br

on 表名：用于指定响应该触发器的表名.br

for each row：触发器的执行间隔,for each row

通知触发器每隔一行执行一次动作,而不是对整个表执行一次.br

触发器SQL语句：触发器要执行的SQL语句,如果该触发器要执行多条SQL语句,要将多条语句放在begin...end块中.

br如：begin...end块(它不能上phpadmin上运行.因为phpmyadmin没有对begin...end解析.)br

mysql_query("br

create trigger user_deletebr

after deletebr

on userbr

for each row BEGINbr

delete from user_bak where id=OLD.id;br

delete from aaa where id=OLD.id;br

END;");br

brbrbrbr

EOT;

mysql写触发器

--触发器如果存在则删除重新创建

DROP?TRIGGER?IF?EXISTS?触发器名称;

CREATE?TRIGGER?触发器名称?

AFTER?INSERT?ON?表名称

FOR?EACH?ROW

--这里写你触发器触发时要做的

UPDATE?lsxhd?

SET?ywrq=UNIX_TIMESTAMP(FROM_UNIXTIME(rq,?"%Y-%m-%d"))

WHERE

END;

mysql触发器编写

主要的就是数据的截取吧,在家判断就可以了

CREATE TRIGGER trigger1

AFTER insert ON AAA

FOR EACH ROW

insert INTO BBB

(a, b, c, d)

values substr

('this\is\a\test', 1, instr('this\is\a\test', '\', 1, 1) - 1),

substr

('this\is\a\test',

(substr('this\is\a\test',

instr('this\is\a\test', '\', -1, 1) -

substr(NEW :aa, instr(NEW :aa, '\', -1, 1) + 1, length(NEW :aa)));

mysql触发器写法

delimiter //

create trigger upd_a

after insert on table_b

for each row

begin

if

new.收费单号 like 'Y%'

then

update table_a set table_a.编号 =1 where table_a.操作员id = new.收费员id and table_a.编号 1 ;

end if;

end//

delimiter ;

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