As long as you are not describing what error message you get, probably no one is able to help you. Information like "management studio", "dynamic syntax" are not really helpful for an analysis. Please post a screenshot of the error and/or a detailed description of what you are doing.
The only thing I can see in your statement is that the schema is not part of the statement. If the table is not part of the session user schema and "ORDR" is not a public synonym this would be a problem.