mysql 带参数的游标

这里是查询 把多个uuid以逗号(,)的格式去查询数据，把数据放入一张临时表

里面值得学习的是动态游标，mysql动态sql语法

DELIMITER $$

DROP PROCEDURE IF EXISTS `get_checkList`$$

CREATE PROCEDURE `get_checkList` (v_schId VARCHAR(100),v_mark VARCHAR(100))
BEGIN

DECLARE done INT DEFAULT 0;
DECLARE temp_id VARCHAR(32);
DECLARE temp_personId VARCHAR(32); #'接收人ID'
DECLARE temp_gradeId VARCHAR(5000); #'(多个)年级id'
DECLARE temp_clazzId VARCHAR(5000); #'(多个)班级id'
DECLARE temp_pushId VARCHAR(32); #'考勤推送ID'
DECLARE temp_mark VARCHAR(10);

#定义游标

DECLARE cur CURSOR FOR( SELECT * FROM check_person_view);
#设置跳出游标条件

DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
#这里采用视图，表示游标的结果 为动态数据

DROP VIEW IF EXISTS check_person_view;

#这里是mysql的动态sql语法运用

SET @sqlstr = "CREATE VIEW check_person_view as ";
SET @sqlstr = CONCAT(@sqlstr , "SELECT a.* FROM kq_pushperson a JOIN kq_checkpush b ON a.pushId =b.id AND b.schId ='", v_schId,"' ");
IF v_mark IS NOT NULL THEN
SET @sqlstr = CONCAT(@sqlstr , "and a.mark='", v_mark,"' ");
END IF;
PREPARE stmt FROM @sqlstr;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DELETE FROM kq_pushperson_temp;

#打开游标

OPEN cur;
FETCH cur INTO temp_id,temp_personId,temp_gradeId,temp_clazzId,temp_pushId,temp_mark;
WHILE done <> 1 DO
#select temp_id,temp_personId,temp_gradeId,temp_clazzId,temp_pushId,temp_mark;
SET @tempSql="insert into kq_pushperson_temp(id,personId,gradeId,clazzId,pushId,empName,gradeName,clazzName,mark) select ";
SET @tempSql= CONCAT(@tempSql,'"',temp_id,'","',temp_personId,'" ');
IF temp_gradeId IS NULL THEN
SET @tempSql= CONCAT(@tempSql,",null,null");
SET @tempSql= CONCAT(@tempSql,',"',temp_pushId,'",(SELECT username FROM sys_user WHERE id="',temp_personId,'")');
SET @tempSql= CONCAT(@tempSql,',null,null,"',temp_mark,'" ');
ELSE
IF temp_clazzId IS NULL THEN
SET @tempSql= CONCAT(@tempSql,',REPLACE("',temp_gradeId,'","\'","") gradeId,null clazzId');
SET @tempSql= CONCAT(@tempSql,',"',temp_pushId,'",(SELECT username FROM sys_user WHERE id="',temp_personId,'")');
SET @tempSql= CONCAT(@tempSql,',(SELECT GROUP_CONCAT(NAME) FROM xj_grade WHERE id in (',temp_gradeId,')) gradeName');
SET @tempSql= CONCAT(@tempSql,',null clazzName');
SET @tempSql= CONCAT(@tempSql,',"',temp_mark,'" ');
ELSE
SET @tempSql= CONCAT(@tempSql,',REPLACE("',temp_gradeId,'","\'","") gradeId,REPLACE("',temp_clazzId,'","\'","") clazzId');
SET @tempSql= CONCAT(@tempSql,',"',temp_pushId,'",(SELECT username FROM sys_user WHERE id="',temp_personId,'")');
SET @tempSql= CONCAT(@tempSql,',(SELECT GROUP_CONCAT(NAME) FROM xj_grade WHERE id in (',temp_gradeId,')) gradeName');
SET @tempSql= CONCAT(@tempSql,',(SELECT GROUP_CONCAT(NAME) FROM xj_clazz WHERE id in (',temp_clazzId,')) clazzName');
SET @tempSql= CONCAT(@tempSql,',"',temp_mark,'" ');
END IF;
END IF;
#select @tempSql;
PREPARE stmt FROM @tempSql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
FETCH cur INTO temp_id,temp_personId,temp_gradeId,temp_clazzId,temp_pushId,temp_mark;
END WHILE;
CLOSE cur;
SELECT * FROM kq_pushperson_temp;
END $$

DELIMITER ;