储存过程，判断字段。

SQL code

CREATE PROCEDURE `Up_MyConcern_Ins`( IN  Id_Int , IN  StarConcern_VarC varchar(800),  IN  TI_Id_Int,   IN  ChannelNo_Int,   IN  UserName_VarC varchar(800) ,     OUT ReturnValues_Int INT)PROC:BEGINDECLARE IsExists_Int INT;DECLARE Id_Int  INT; DECLARE EXIT HANDLER FOR SQLSTATE'23000' BEGIN    SET ReturnValues_Int = 1;    ROLLBACK;END;SET AUTOCOMMIT = 0;START TRANSACTION;SET ReturnValues_Int = 0;SELECT COUNT(1) INTO IsExists_Int FROM MyConcern WHERE MC_StarConCern_VarC = StarConCern_VarC;IF IsExists_Int = 0 THEN     SET ReturnValues_Int = 2;    ROLLBACK;    LEAVE PROC;END IF;   INSERT INTO MyConcern(MC_Id_Int,MC_TI_Id_Int,MC_ChannelNo,MC_UserId_Int,MC_UserName_VarC,MC_StarConcern_VarC)       VALUES(Id_Int,FN_Id_Int,ChannelNo_Int,UserId_Int,UserName_VarC,StarConcern_VarC);

表MyConcern的插入存储过程，插入前要对TI_Id_Int(在另外一张表里存着) 字段判断，存在可以插入，不存着返回。
怎么修改插入存储过程?

[解决办法]
自己动手做一下吧，有问题再问
[解决办法]
楼主碰到的问题是什么？ 建议把错误信息一同贴出以供分析。
[解决办法]
SELECT COUNT(1) INTO IsExists_Int FROM MyConcern WHERE MC_StarConCern_VarC = StarConCern_VarC;


IF IsExists_Int = 0 THEN
SET ReturnValues_Int = 2;
ROLLBACK;
LEAVE PROC;
END IF;


同样方式对 TI_Id_Int 进行判断。只是表改变为存 TI_Id_Int 字段的表。