Question

ALTER PROCEDURE [dbo].[STL_ADDNEWROLE](@ROLENAME VARCHAR(100), @STATUS BIT)
AS
BEGIN   
    SET NOCOUNT ON;
    IF(@ROLENAME IS NULL OR @STATUS IS NULL)
    BEGIN
       RETURN 0
    END
    ELSE
    BEGIN
       IF EXISTS (SELECT [RoleName], [Status] FROM ST_Roles 
                  WHERE [RoleName] = @ROLENAME)
       BEGIN
          RETURN 0
       END
       ELSE IF(@ROLENAME IS NOT NULL)
       BEGIN
          INSERT INTO ST_Roles ([RoleName], [Status]) VALUES(@ROLENAME, @STATUS)
          RETURN 1
       END
    END
END

以上是我的存储过程。当传递NULL值时，它应该返回0.即使传递了1个值而没有传递另一个值，它应该返回0而不是插入记录。

非常感谢任何帮助。

Answer 1

在你描述你的问题之前，我只是猜测。我想问题是默认参数。也许你只是不传递参数或传递空字符串，所以试试这种方式

 ALTER PROCEDURE [dbo].[STL_ADDNEWROLE](
               @ROLENAME VARCHAR(100) = NULL, 
                @STATUS BIT = NULL)
        AS
        BEGIN   
            SET NOCOUNT ON;
            IF(ISNULL(@ROLENAME, '') = '' OR @STATUS IS NULL)
                BEGIN
                    RETURN 0
                END
            ELSE
                BEGIN
                    IF EXISTS (SELECT [RoleName],[Status] from ST_Roles where  [RoleName] = @ROLENAME)
                        BEGIN
                            RETURN 0
                        END
                    ELSE IF(@ROLENAME IS NOT NULL)
                        BEGIN
                            INSERT INTO ST_Roles ([RoleName],[Status]) VALUES(@ROLENAME,@STATUS)
                            RETURN 1
                        END
                END


        END

存储过程甚至在空值保存数据之后

1 个答案: