mysql 5.6 存储过程+事务+游标+错误异常抛出+日志写入

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MySQL的GET DIAGNOSTICS语句在5.6.4以后才有

简单讲GET DIAGNOSTICS作用：

DELIMITER $$

USE `ecstore`$$

DROP PROCEDURE IF EXISTS `proc_add_warranty_card`$$

CREATE DEFINER=`root`@`localhost` PROCEDURE `proc_add_warranty_card`()
BEGIN     
     -- 获取异常信息
     DECLARE v_sql1 VARCHAR(500); 
     DECLARE v_sql2 VARCHAR(500); 
     #定义变量
     DECLARE w_warranty_id BIGINT(20) DEFAULT 1;
     DECLARE w_orderid BIGINT(20);
     DECLARE w_ordertime INT(10);
     DECLARE w_member_id MEDIUMINT(8);
     #定义游标遍历时，作为判断是否遍历完全部记录的标记
     DECLARE done1 INTEGER DEFAULT 0;  
     DECLARE data_err INTEGER DEFAULT 0;  
     DECLARE log_err INTEGER DEFAULT 0;  
     #定义保修卡主表为C_WARRANTY 
     DECLARE C_WARRANTY CURSOR FOR
    SELECT orde.order_id,
           orde.createtime,
           orde.member_id
    FROM `sdb_b2c_orders` AS orde 
    WHERE orde.ship_status='1' AND orde.status IN ('active','finish') AND (orde.warranty_id IS NULL);
     #声明当游标遍历完全部记录后将标志变量置成某个值
     DECLARE CONTINUE HANDLER FOR NOT FOUND SET done1=1;
     DECLARE CONTINUE HANDLER FOR SQLEXCEPTION
     BEGIN
          ROLLBACK;
      GET DIAGNOSTICS CONDITION 1 v_sql1 = RETURNED_SQLSTATE,v_sql2= MESSAGE_TEXT;
      INSERT INTO `sdb_b2c_warranty_log` (`order_id`,`createtime`,`msg_text`)  
      VALUES (w_orderid,UNIX_TIMESTAMP(CURDATE()),CONCAT(v_sql1,':',v_sql2));
      SET log_err=1;
     END;
     #手动提交事务
     SET autocommit=0;
     OPEN C_WARRANTY;
     #取出每条记录并赋值给相关变量，注意顺序
     FETCH C_WARRANTY INTO w_orderid, w_ordertime, w_member_id;
     SET w_warranty_id=CONCAT(DATE_FORMAT(NOW(), '%Y%m%d'),LPAD((w_warranty_id), 5, '0'));        
     #循环语句的关键词   
     REPEAT
         -- 启动事务
         START TRANSACTION; 
         
         #保修卡主表添加
         INSERT INTO `sdb_b2c_warranty` (`warranty_id`,`order_id`,`ordertime`,`member_id`,`warranty_card_status`,`createtime`)  
             VALUES (w_warranty_id,w_orderid,w_ordertime,w_member_id,'1',UNIX_TIMESTAMP(CURDATE())); 
             IF log_err=0 THEN 
             #生成明细
             INSERT INTO `sdb_b2c_warranty_detail`(warranty_id,item_id,order_id,
                  obj_id,product_id,goods_id,type_id,bn,pn,`name`,nums,sendnum,addon,item_type) 
             SELECT w_warranty_id,ite.item_id,ite.`order_id`,ite.obj_id,ite.product_id,
                 ite.goods_id,ite.type_id,ite.bn,pro.store_place,ite.name,ite.nums,
                 ite.sendnum,ite.addon,ite.item_type
            FROM`sdb_b2c_order_items` AS ite
            LEFT JOIN `sdb_b2c_products` AS pro ON pro.product_id=ite.product_id
            WHERE ite.order_id=w_orderid;
        END IF;
        #回写订单表保修卡号
        IF log_err=0 THEN
         UPDATE `sdb_b2c_orders` SET `warranty_id`=w_warranty_id WHERE `order_id`= w_orderid;
        END IF;    
        COMMIT;
        SET log_err=0;   
        SET  done1=0;
     #取出每条记录并赋值给相关变量，注意顺序
     FETCH C_WARRANTY INTO w_orderid, w_ordertime, w_member_id;    
     SET  w_warranty_id =w_warranty_id+1;  
     #循环语句结束
     UNTIL done1  END REPEAT;   
     #关闭游标    
     CLOSE C_WARRANTY;  
     
     BEGIN
     #如果是退货，则把保修卡状态改成无效
     DECLARE card_order_id BIGINT(20);
     -- 获取异常信息
         DECLARE v_sql1 VARCHAR(500); 
         DECLARE v_sql2 VARCHAR(500); 
     DECLARE card_warranty_id BIGINT(20);
     #标记循环结束
     DECLARE done2 INTEGER DEFAULT 0;  
     DECLARE C_UPDATE_CARD_STATUS CURSOR FOR 
             SELECT war.`order_id`,war.`warranty_id` 
             FROM `sdb_b2c_orders`  AS orde
             JOIN `sdb_b2c_warranty` AS war ON orde.`order_id`=war.`order_id`
             WHERE orde.ship_status='4';
     #声明当游标遍历完全部记录后将标志变量置成某个值
     DECLARE CONTINUE HANDLER FOR NOT FOUND SET done2= 1; 
     DECLARE CONTINUE HANDLER FOR SQLEXCEPTION
     BEGIN
        GET DIAGNOSTICS CONDITION 1 v_sql1 = RETURNED_SQLSTATE,v_sql2= MESSAGE_TEXT;
        INSERT INTO `sdb_b2c_warranty_log` (`order_id`,`createtime`,`msg_text`)  
        VALUES (w_orderid,UNIX_TIMESTAMP(CURDATE()),CONCAT(v_sql1,':',v_sql2));
     END;
     #打开明细游标
     OPEN C_UPDATE_CARD_STATUS;
        FETCH C_UPDATE_CARD_STATUS INTO card_order_id,card_warranty_id;
        REPEAT
          UPDATE sdb_b2c_warranty SET warranty_card_status='0',invalid_reason='0' WHERE warranty_card_status='1' AND `order_id`=card_order_id;    
          SET  done2=0;  #取出每条记录并赋值给相关变量，注意顺序
          FETCH C_UPDATE_CARD_STATUS INTO card_order_id,card_warranty_id;           
        #循环语句结束
        UNTIL done2  END REPEAT;
     CLOSE C_UPDATE_CARD_STATUS;
     END;
END$$

DELIMITER ;

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