mysql存储过程使用游标循环插入数据

DELIMITER $$

DROP PROCEDURE IF EXISTS `procedure_course`$$

CREATE DEFINER=`root`@`localhost` PROCEDURE `topsale`.`procedure_course`()

    BEGIN

    DECLARE c_user_login_id VARCHAR(100); 

    DECLARE done INT DEFAULT 0;
    ##1.定义游标stock_cursor   根据指定用户id
    DECLARE stock_cursor CURSOR FOR SELECT ul.USER_LOGIN_ID FROM user_login ul WHERE ul.party_id='999' AND user_login_id='eric.zhang';##获取本部所有用户id

    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;

    OPEN stock_cursor;##2.打开游标

    cursor_loop: LOOP 

    FETCH stock_cursor INTO c_user_login_id; ##3.提取游标

    IF done=1 THEN
          LEAVE cursor_loop;
    END IF;

    CALL procedure_course_mapping(c_user_login_id);

    END LOOP cursor_loop;
    CLOSE stock_cursor; ##关闭游标    

    END$$

DELIMITER ;

DELIMITER $$

USE `topsale`$$

DROP PROCEDURE IF EXISTS `procedure_course_mapping`$$

CREATE DEFINER=`root`@`localhost` PROCEDURE `procedure_course_mapping`(v_user_login VARCHAR(30))
BEGIN

    DECLARE c_msg_role_id VARCHAR(50);
    DECLARE c_count VARCHAR(50); 

    DECLARE done INT DEFAULT 0; 

    DECLARE stock_cursor CURSOR FOR SELECT t.msg_role_id FROM training_course c,t_msg_text t WHERE c.course_id=t.course_id;##获取所有课件的msg_role_id

    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1; 

    OPEN stock_cursor;

    cursor_loop: LOOP 

    FETCH stock_cursor INTO c_msg_role_id;
    IF done=1 THEN
          LEAVE cursor_loop;
    END IF;

    SELECT COUNT(*) INTO c_count FROM t_msg_mapping WHERE msg_role_id=c_msg_role_id AND user_login_id=v_user_login;
    IF(c_count=0) THEN

    INSERT INTO t_msg_mapping(user_login_id,msg_role_id,msg_state) VALUES(v_user_login,c_msg_role_id,0);

    END IF;

    END LOOP cursor_loop;
    CLOSE stock_cursor;

    END$$

DELIMITER ;

SELECT * FROM information_schema.events//获取所有事件

SET GLOBAL event_scheduler = 1;//开启事件状态，1为开始，0为未开启

SHOW VARIABLES LIKE 'event_scheduler';//显示事件是否开启

DELIMITER $$

USE `topsale`$$

DROP PROCEDURE IF EXISTS `procedure_course`$$

CREATE DEFINER=`top`@`%` PROCEDURE `procedure_course`()
BEGIN

    DECLARE c_user_login_id VARCHAR(); 

    DECLARE done INT DEFAULT ;
    ##.定义游标stock_cursor   根据指定用户id
    DECLARE stock_cursor CURSOR FOR SELECT ul.user_login_id FROM user_role_mapping urm,user_login ul WHERE ul.`USER_LOGIN_ID`=urm.`USER_LOGIN_ID` AND urm.`ROLE_ID` LIKE 'prom%';##获取prom所有用户id

    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = ;

    OPEN stock_cursor;##.打开游标

    cursor_loop: LOOP 

    FETCH stock_cursor INTO c_user_login_id; ##.提取游标

    IF done= THEN
          LEAVE cursor_loop;
    END IF;

    CALL procedure_del_msg_user(c_user_login_id);

    END LOOP cursor_loop;
    CLOSE stock_cursor; ##关闭游标    

    END$$

DELIMITER ;

DELIMITER $$

USE `topsale`$$

DROP PROCEDURE IF EXISTS `procedure_del_msg_user`$$

CREATE DEFINER=`top`@`%` PROCEDURE `procedure_del_msg_user`(v_user_login VARCHAR())
BEGIN
    DECLARE c_msg_role_id VARCHAR();
    DECLARE c_count VARCHAR();

    DECLARE done INT DEFAULT ; 

    DECLARE stock_cursor CURSOR FOR SELECT t.msg_role_id FROM training_course c,t_msg_text t WHERE c.course_id=t.course_id AND c.creater_party_id='';##获取本部所有课件

    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = ; 

    OPEN stock_cursor;

    cursor_loop: LOOP 

    FETCH stock_cursor INTO c_msg_role_id;

    IF done= THEN
          LEAVE cursor_loop;
    END IF;

    DELETE FROM t_msg_mapping WHERE msg_role_id=c_msg_role_id AND user_login_id=v_user_login;##删除消息映射表中prom的角色

    END LOOP cursor_loop;
    CLOSE stock_cursor;
    END$$

DELIMITER ;