MySQL在创建存储过程的时候,语法正确却提示You have an error in your SQL syntax

　　我在使用MySQL工具编写MySQL存储过程的时候,明明语法正确,但是却一直提示You have an error in your SQL syntax。

　　比如下面一段代码

CREATE PROCEDURE demo_pro()
BEGIN
    DECLARE doned BOOLEAN;
    DECLARE addr varchar(20);
    DECLARE demo_cur CURSOR FOR SELECT detail from address;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET doned = True;
    SET doned = False;
    OPEN demo_cur;
    demo_cur:LOOP
        FETCH demo_cur into addr;
        IF doned THEN
            LEAVE demo_cur;
        ELSE
            insert into demo(demo_value) values(addr);
        END IF;
    END LOOP;
    CLOSE demo_cur;
END;

　　找了半天才找到解决方案,原来不是语法的错误，是MYSQL语法解析器的原因。MYSQL 解析器解析遇到“;”分号，就结束本次执行，所以就造成了很多语法错误。解决方案是:

DELIMITER |  #结束符号,可以根据自己的需求,改成 $也可以
CREATE PROCEDURE demo_pro()
BEGIN
    DECLARE doned BOOLEAN;
    DECLARE addr varchar(20);
    DECLARE demo_cur CURSOR FOR SELECT detail from address;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET doned = True;
    SET doned = False;
    OPEN demo_cur;
    demo_cur:LOOP
        FETCH demo_cur into addr;
        IF doned THEN
            LEAVE demo_cur;
        ELSE
            insert into demo(demo_value) values(addr);
        END IF;
    END LOOP;
    CLOSE demo_cur;
END;|
DELIMITER ;