<pre name="code" class="html">root 用户创建函数;
delimiter $$
CREATE FUNCTION `loadTreeByParent`(begin_sn INT) RETURNS varchar(600) CHARSET utf8
BEGIN
DECLARE rest VARCHAR(600);
DECLARE temp VARCHAR(60);
SET rest='$';
SET temp=CAST(begin_sn AS CHAR);
WHILE temp IS NOT NULL DO
SET rest=CONCAT(rest,',',temp);
SELECT GROUP_CONCAT(sn) INTO temp FROM ClientManager WHERE FIND_IN_SET(parent,temp)>0;
END WHILE;
RETURN rest;
END$$
CREATE DEFINER=`root`@`%` FUNCTION `loadTreeByParent`(begin_sn INT) RETURNS varchar(600) CHARSET utf8
BEGIN
DECLARE rest VARCHAR(600);
DECLARE temp VARCHAR(60);
SET rest='$';
SET temp=CAST(begin_sn AS CHAR);
WHILE temp IS NOT NULL DO
SET rest=CONCAT(rest,',',temp);
SELECT GROUP_CONCAT(sn) INTO temp FROM ClientManager WHERE FIND_IN_SET(parent,temp)>0;
END WHILE;
RETURN rest;
END
zjzc_app 创建函数;
drop function loadTreeByParent;
CREATE DEFINER=`zjzc_app`@`%` FUNCTION `loadTreeByParent`(begin_sn INT) RETURNS varchar(600) CHARSET utf8
BEGIN
DECLARE rest VARCHAR(600);
DECLARE temp VARCHAR(60);
SET rest='$';
SET temp=CAST(begin_sn AS CHAR);
WHILE temp IS NOT NULL DO
SET rest=CONCAT(rest,',',temp);
SELECT GROUP_CONCAT(sn) INTO temp FROM ClientManager WHERE FIND_IN_SET(parent,temp)>0;
END WHILE;
RETURN rest;
END
用root用户登录,执行;
zjzc-mysql:/root# cat t1.sql
$$
CREATE DEFINER=`zjzc_app`@`%` FUNCTION `loadTreeByParent`(begin_sn INT) RETURNS varchar(600) CHARSET utf8
BEGIN
DECLARE rest VARCHAR(600);
DECLARE temp VARCHAR(60);
SET rest='$';
SET temp=CAST(begin_sn AS CHAR);
WHILE temp IS NOT NULL DO
SET rest=CONCAT(rest,',',temp);
SELECT GROUP_CONCAT(sn) INTO temp FROM ClientManager WHERE FIND_IN_SET(parent,temp)>0;
END WHILE;
RETURN rest;
END$$
zjzc-mysql:/root# mysql -A -uroot -p1234567
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 241
Server version: 5.6.22-log Source distribution
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
mysql> use zjzc;
Database changed
mysql> source t1.sql
ERROR 1304 (42000): FUNCTION loadTreeByParent already exists
mysql> drop function loadTreeByParent
-> ;
Query OK, 0 rows affected (0.00 sec)
mysql> source t1.sql
Query OK, 0 rows affected (0.00 sec)
[DEFINER = { user | CURRENT_USER }]:定义创建者,可以手动指定数据库中已经存在的用户,或者默认(使用当前用户).