MySQL: IF in stored procedure

Question

I am just getting my feet wet with stored procedures. According to the tutorials that I have seen, this should be valid (MySQL 5.5):

CREATE PROCEDURE someFunction ( a VARCHAR(256),  b VARCHAR(256) )
    BEGIN
        DECLARE haveAllVariables INT;
        SET haveAllVariables = 1;

    IF     a = "" THEN SET haveAllVariables = 0
    ELSEIF b = "" THEN SET haveAllVariables = 0
    END IF;

However, it is throwing this error:

ERROR 1064 (42000): 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 'ELSEI
F b = "" THEN SET haveAllVariables = 0

Where is the error in my syntax?

Thanks.

Answer 1

You're missing a semicolon

CREATE PROCEDURE someFunction ( a VARCHAR(256),  b VARCHAR(256) )
    BEGIN
        DECLARE haveAllVariables INT;
        SET haveAllVariables = 1;

    IF     a = "" THEN SET haveAllVariables = 0;
    ELSEIF b = "" THEN SET haveAllVariables = 0;
    END IF;