Question

I have a query like the following one:

  SELECT case_filed_by,
         office_code,
         desg_code, 
         court_code,
         court_case_no,
         COUNT(office_code) as count 
    FROM registration_of_case 
   WHERE TRUE 
     AND SUBSTR(office_code, 1, 0) = SUBSTR('', 1, 0) 
ORDER BY court_code, court_case_no

I am getting the following error:

ERROR: column “registration_of_case.case_filed_by” must appear in the GROUP BY clause or be used in an aggregate function LINE 1: SELECT case_filed_by,office_code,desg_code, court_code,court […]

Answer 1

As you describe in your comments, you actually want the number of selected rows in a separate field of your result set.

You can achieve this by using a subselect for the count and the join these two queries.

Something like this:

  SELECT case_filed_by,
         office_code,
         desg_code, 
         court_code,
         court_case_no,
         office_code_count 
    FROM registration_of_case,
         (SELECT COUNT(office_code) AS office_code_count 
            FROM registration_of_case 
           WHERE TRUE 
             AND SUBSTR(office_code, 1, 0) = SUBSTR('', 1, 0)
         ) AS count_query
   WHERE TRUE 
     AND SUBSTR(office_code, 1, 0) = SUBSTR('', 1, 0) 
ORDER BY court_code, court_case_no

I couldn’t test the query, but it should work or at least point you into the right direction.