MySql Workbench和IF语句的语法错误

Question

我正在从T-SQL迁移到MySql语法，并且不知道如何克服Workbench 5.1.18给出的语法错误：

-- --------------------------------------------------------------------------------
-- Routine DDL
-- --------------------------------------------------------------------------------
DELIMITER //

CREATE PROCEDURE `SysTicket`.`GetProductionLines` (aId INT, aActive INT, aResponsible VARCHAR(8000))
BEGIN
    IF(aId > 0) THEN SELECT * FROM ProductionLine WHERE Id = @Id;

    ELSE IF( aActive <> -1 AND aResponsible = '|$EMPTYARG$|') THEN SELECT * FROM ProductionLine;

    ELSE IF(aResponsible = '|$EMPTYARG&|') THEN SELECT * FROM ProductionLine WHERE Active = aActive;

    ELSE SELECT * FROM ProductionLine WHERE Active = aActive AND Responsible LIKE CONCAT('%', aResponsible, '%');

    END IF;    
END//

它说END附近的语法错误（最后一行） ty提前。

Answer 1

从IF语句中删除括号以进行单个比较，或添加逗号而不是AND。

http://dev.mysql.com/doc/refman/5.1/en/control-flow-functions.html#function_if

Answer 2

想出来...... 正确的语法是：

ELSEIF

而不是

ELSE IF