Mysql存储过程循环内嵌套使用游标示例代码

BEGIN

 -- 声明变量

 DECLARE v_addtime_begin varchar(13);

 DECLARE v_addtime_end varchar(13);

 DECLARE v_borrow_id int;

 DECLARE v_count int;

 DECLARE s1 int;

  

 /** 声明游标，并将查询结果存到游标中 **/

 DECLARE c_borrow CURSOR FOR

 SELECT ID from rocky_borrow WHERE BORROWTYPE = 2 AND PUBLISH_TIME >= UNIX_TIMESTAMP('2014-05-27') AND PUBLISH_TIME <= UNIX_TIMESTAMP('2014-07-30') ORDER by ID ASC;

 /** 获取查询数量 **/

 SELECT count(ID) INTO v_count from rocky_borrow WHERE BORROWTYPE = 2 AND PUBLISH_TIME >= UNIX_TIMESTAMP('2014-05-27') AND PUBLISH_TIME <= UNIX_TIMESTAMP('2014-07-30') ORDER by ID ASC;

 SET s1 = 1;

 -- 开始事务

 START TRANSACTION;

 -- 打开游标

 OPEN c_borrow;

 -- 循环游标

  WHILE s1 < v_count+1 DO

  -- 遍历游标

  FETCH c_borrow INTO v_borrow_id;

  SELECT t1.addtime INTO v_addtime_begin FROM (SELECT * FROM rocky_b_tenderrecord bt WHERE BORROW_ID = v_borrow_id AND tender_type = 1 ORDER BY ID ASC) t1 GROUP BY t1.borrow_id;

  SELECT t1.addtime INTO v_addtime_end FROM (SELECT * FROM rocky_b_tenderrecord bt WHERE BORROW_ID = v_borrow_id AND tender_type = 1 ORDER BY ID DESC) t1 GROUP BY t1.borrow_id;

  IF (v_addtime_begin IS NOT NULL) && (v_addtime_end IS NOT NULL) THEN

   -- 嵌套使用游标

   BEGIN

    DECLARE v_id int;

    DECLARE v_user_id int;

    DECLARE v_type varchar(20);

    DECLARE v_total decimal(20,8) DEFAULT 0;

    DECLARE v_money decimal(20,8) DEFAULT 0;

    DECLARE v_use_money decimal(20,8) DEFAULT 0;

    DECLARE v_no_use_money decimal(20,8) DEFAULT 0;

    DECLARE v_collection decimal(20,8) DEFAULT 0;

    DECLARE v_to_user int(11);

    DECLARE v_remark VARCHAR(1000);

    DECLARE v_addtime varchar(13);

    DECLARE v_addip varchar(64);

    DECLARE v_first_borrow_use_money decimal(20,8) DEFAULT 0;

    DECLARE done VARCHAR(45) DEFAULT '';

    DECLARE t_error int DEFAULT 0;

   

    DECLARE c_accountlog CURSOR FOR

    SELECT ID,USER_ID,TYPE,TOTAL,MONEY,USE_MONEY,NO_USE_MONEY,COLLECTION,TO_USER,REMARK,ADDTIME,ADDIP,FIRST_BORROW_USE_MONEY FROM (

    SELECT ID,USER_ID,TYPE,TOTAL,MONEY,USE_MONEY,NO_USE_MONEY,COLLECTION,TO_USER,REMARK,ADDTIME,ADDIP,FIRST_BORROW_USE_MONEY FROM rocky_accountlog

    WHERE ADDTIME >= v_addtime_begin AND ADDTIME <= v_addtime_end AND (type = 'tender_cold' or type= 'repayment_deduct')

    ) t GROUP BY t.user_id HAVING count(t.user_id) > 1;

     

    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = NULL;

    OPEN c_accountlog;

    FETCH c_accountlog INTO v_id,v_user_id,v_type,v_total,v_money,v_use_money,v_no_use_money,v_collection,v_to_user,v_remark,v_addtime,v_addip,v_first_borrow_use_money;

    WHILE (done IS NOT NULL) DO

     INSERT INTO rocky_accountlog_test2 (ACCOUNTLOG_ID,USER_ID,TYPE,TOTAL,MONEY,USE_MONEY,NO_USE_MONEY,COLLECTION,TO_USER,REMARK,ADDTIME,ADDIP,FIRST_BORROW_USE_MONEY,BORROW_ID)

     VALUES (v_id,v_user_id,v_type,v_total,v_money,v_use_money,v_no_use_money,v_collection,v_to_user,v_remark,v_addtime,v_addip,v_first_borrow_use_money,v_borrow_id);

     FETCH c_accountlog INTO v_id,v_user_id,v_type,v_total,v_money,v_use_money,v_no_use_money,v_collection,v_to_user,v_remark,v_addtime,v_addip,v_first_borrow_use_money;

    END WHILE;

    CLOSE c_accountlog;

   END;

  END IF;

  SET s1 = s1 + 1;

 END WHILE;

 CLOSE c_borrow;

 COMMIT; -- 事务提交

END