「創建過程」語句中的錯誤

Question

我試圖創建一個使用HeidiSQL在MariaDB（10.1.17）中插入數據的過程，但語句失敗，出現錯誤「SQL錯誤（1064）您的SQL語法;請查看對應於您的MariaDB的服務器版本在第11" 行

DELIMITER $$ 
CREATE PROCEDURE `uspaddpost`(IN `_siteparseid` INT, IN `_user`   
VARCHAR(255), IN `_post` TEXT) 
BEGIN 
DECLARE _userid INT; 
DECLARE _siteid INT; 
SELECT `SiteID` INTO _siteid FROM tblsiteparse WHERE `SiteParseID` = _siteparseID LIMIT 1; 
IF NOT EXISTS(SELECT `UserID` FROM tblusers WHERE `User` = _user) THEN 
    INSERT INTO tblusers (`UserID`, `SiteID`) VALUES (_user, _siteid); 
SELECT `UserID` INTO _userid FROM tblusers WHERE `User` = _user; 
INSERT INTO tblposts (`UserID`,`SiteParseID`, `Post`) VALUES (_userid, _siteparseid, _post); 
END$$ 
DELIMITER ; 

Answer 1

每個‘IF’必須由一個封閉的‘END IF使用「」附近正確語法手冊’;