在pymssql中使用`query`和`callproc`调用存储过程的区别

Question

I have a stored procedure saved on SQL Server and using pymssql to connect to that database.

I can call this procedure by calling cursor.query('EXEC FindPerson') successfully. But I can't use the method cursor.callproc('FindPerson', (name,)) , I got this error

'<' not supported between instances of 'NoneType' and 'int'

I wonder why I can't call callproc method. The reason I want to use callproc is to be able to loop different result sets from the procedure.

I also tried to put different stored procedure on this method, regardless what is the parameter I put into, I always got the same error. So it seems that the method callproc failed even before hitting the procedure. The question is what the correct way to call a stored procedure?

Below is an example of stored procedure.

CREATE PROCEDURE FindPerson
    @name VARCHAR(100)
AS 
BEGIN
    SELECT * 
    FROM persons 
    WHERE name = @name
END

Answer 1

You need to pass name param in tuple. Try cursor.callproc('FindPerson', (personname,))