我試圖使用這個過程：

DELIMITER $$

CREATE DEFINER=`root`@`localhost` PROCEDURE `sp_login`(

IN in_Email VARCHAR(60),

IN in_Pass VARCHAR(45)

)

BEGIN

DECLARE d_UserType VARCHAR(45);

SET d_UserType := db.get_usertype( (SELECT ID FROM User WHERE Email = in_Email ) );

IF (d_UserType = '1') THEN

SELECT * FROM User inner join tableA on tableA.ID = User.tableA_ID;

ELSEIF (d_UserType = '2') THEN

SELECT * FROM User inner join tableB on tableB.ID = User.tableB_ID;

ELSEIF (d_UserType = '3') THEN

SELECT * FROM User inner join tableC on tableC.ID = User.tableC_ID;

END IF;

END但我得到以下錯誤：錯誤1305(42000)：功能db.get_usertype不存在。

該

CALL db.get_usertype( (SELECT ID FROM User WHERE Email = 'example@example.com') );當我單獨測試時工作正常。任何人都知道它為什么起作用？

我試過了：

SET d_UserType := CALL db.get_usertype( (SELECT ID FROM User WHERE Email = in_Email ) );

SET d_UserType := EXEC db.get_usertype( (SELECT ID FROM User WHERE Email = in_Email ) );

SET d_UserType := EXECUTE db.get_usertype( (SELECT ID FROM User WHERE Email = in_Email ) );沒有運氣..

Thx的所有幫助！

總結

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