设置存储过程参数时出现mysql语法错误

Question

我为 mysql 存储过程编写的代码显示语法错误，我不知道自己犯了什么错误。请任何人帮助我。

DELIMITER $$

DROP PROCEDURE IF EXISTS `aad_adr`.` PROCEDURE MonthlySalesReport(fromdate DATE,todate DATE)` $$
CREATE PROCEDURE `aad_adr`.` PROCEDURE MonthlySalesReport(fromdate DATE,todate DATE)` ()
BEGIN
Declare fd DATE;
Declare ed DATE;
SET fd=fromdate;
SET ed=todate;
WHILE DATE(fd)<=DATE(ed)DO
select bill_master.bill_no,DATE_FORMAT(bill_master.bill_date, '%y/%m/%d') AS 'formatted_date',transaction.product_id,transaction.tax_amount,transaction.amount,transaction.amount-transaction.tax_amount as 'without_tax ',product_master.Product_name,product_master.vat from bill_master inner join transaction on bill_master.bill_no=transaction.bill_no inner join product_master on transaction.product_id=product_master.product_id where vat='14.50' and DATE_FORMAT(bill_master.bill_date, '%y/%m/%d') fd;
SET fd=DATE_ADD(fd,INTERVAL 1 DAY);
END WHILE;
END $$

DELIMITER;

错误:

Script line: 4  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 'fd;
SET fd=DATE_ADD(fd,INTERVAL 1 DAY);
END WHILE;
END' at line 8

Answer 1

您调用的选择查询错误 where 条件。因此，只需删除 where 子句中的 DATE_FORMAT 并需要再进行一次修改，只需将 DELIMITER; 替换为最后的 DELIMITER$$。

更新一:修改SP的有效名称。

所以更新后的代码是:

DELIMITER $$

DROP PROCEDURE IF EXISTS `aad_adr`.`MonthlySalesReport` $$
CREATE PROCEDURE `aad_adr`.`MonthlySalesReport`(IN fromdate DATE,IN todate DATE)
     BEGIN
       DECLARE fd DATE;
       DECLARE ed DATE;
       SET fd=fromdate;
       SET ed=todate;
       WHILE DATE(fd)<=DATE(ed)DO
             SELECT bill_master.bill_no,DATE_FORMAT(bill_master.bill_date, '%y/%m/%d') AS 'formatted_date',transaction.product_id,transaction.tax_amount,transaction.amount,transaction.amount-transaction.tax_amount AS 'without_tax ',product_master.Product_name,product_master.vat FROM bill_master INNER JOIN TRANSACTION ON bill_master.bill_no=transaction.bill_no INNER JOIN product_master ON transaction.product_id=product_master.product_id WHERE vat='14.50' AND bill_master.bill_date=fd;
          SET fd=DATE_ADD(fd,INTERVAL 1 DAY);
       END WHILE;
    END $$
DELIMITER$$