create procedure [dbo].[BAEPostUpdateWrapup] @userID varchar(10),
     @birthDate varchar(20),
     @excludeMail bit,
     @SICCode varchar(10) as
IF(@birthDate  <> '')
        BEGIN
            UPDATE Name
            SET BIRTH_DATE = @birthDate, EXCLUDE_MAIL = @excludeMail, SIC_CODE = @SICCode
            WHERE ID = @userID;
        END
    ELSE
        BEGIN
            UPDATE Name
            SET BIRTH_DATE = NULL, EXCLUDE_MAIL = @excludeMail, SIC_CODE = @SICCode
            WHERE ID = @userID;
        END

GO