帮忙看看一个mysql存储过程的错误
Query : CREATE /*[DEFINER = { user | CURRENT_USER }]*/ PROCEDURE `insist`.`InsertRecord`( _userId INT, _categoryId INT, _d...

Error Code : 1064
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'declare _STATUS int;
 select `status` into _STATUS from record where userid=_us' at line 30

Execution Time : 00:00:00:000
Transfer Time : 00:00:00:000
Total Time : 00:00:00:000
---------------------------------------------------


 

SQL code

DELIMITER $$

CREATE
    /*[DEFINER = { user | CURRENT_USER }]*/
    PROCEDURE `insist`.`InsertRecord`(   _userId INT,
   _categoryId INT,
 _date DATETIME,
   _value    INT)
    /*LANGUAGE SQL
    | [NOT] DETERMINISTIC
    | { CONTAINS SQL | NO SQL | READS SQL DATA | MODIFIES SQL DATA }
    | SQL SECURITY { DEFINER | INVOKER }
    | COMMENT 'string'*/
    BEGIN
 IF _value=0 THEN
   INSERT INTO `insist`.`record`
            (`Id`,
             `UserId`,
             `CategoryId`,
             `Date`,
             `EachDay`,
             `Status`)
    VALUES ('Id',
         _UserId ,
         _CategoryId ,
         _Date ,
        _VALUE,
        0);   
   END IF;
 
  IF _VALUE=1 THEN
 DECLARE _STATUS INT;
 SELECT  `status` INTO _STATUS FROM record WHERE userid=_userid AND categoryid=_categoryid AND TO_DAYS(_date)-TO_DAYS(`date`)=1;
 IF _STATUS IS NULL THEN 
 _status=0;
 END IF
   INSERT INTO `insist`.`record`
            (`Id`,
             `UserId`,
             `CategoryId`,
             `Date`,
             `EachDay`,
             `Status`)
    VALUES ('Id',
         _UserId ,
         _CategoryId ,
         _Date ,
        _VALUE,
        _STATUS+1);   
   END IF;

    END$$

DELIMITER ;

------解决方案--------------------
DELIMITER $$

CREATE
/*[DEFINER = { user | CURRENT_USER }]*/
PROCEDURE `insist`.`InsertRecord`( _userId INT,
_categoryId INT,
 _date DATETIME,
_value INT)
/*LANGUAGE SQL
| [NOT] DETERMINISTIC
| { CONTAINS SQL | NO SQL | READS SQL DATA | MODIFIES SQL DATA }
| SQL SECURITY { DEFINER | INVOKER }
| COMMENT 'string'*/
BEGIN
DECLARE _STATUS INT;

 IF _value=0 THEN
INSERT INTO `insist`.`record`
(`Id`,
`UserId`,
`CategoryId`,
`Date`,
`EachDay`,
`Status`)
VALUES ('Id',
_UserId ,
_CategoryId ,
_Date ,
_VALUE,
0);
END IF;
 
IF _VALUE=1 THEN
SELECT `status` INTO _STATUS FROM record WHERE userid=_userid AND categoryid=_categoryid AND TO_DAYS(_date)-TO_DAYS(`date`)=1;
 IF _STATUS IS NULL THEN 
 SET _status=0;
 END IF;
INSERT INTO `insist`.`record`
(`Id`,
`UserId`,
`CategoryId`,
`Date`,
`EachDay`,
`Status`)
VALUES ('Id',
_UserId ,
_CategoryId ,
_Date ,
_VALUE,
_STATUS+1);
END IF;

END$$

DELIMITER ;

------解决方案--------------------
把 DECLARE _STATUS INT;这句放到其它语句之前。

MYSQL和C不同，不可以在中途定义声明变量。