Question

I’m trying to perform a somewhat complex select from 3 tables, all joined by a b_id:

select max(bs.b_id), 
       h.b_type_id, 
       t.name_id 
  from b_state as bs, 
       t_info as t, 
       history as h 
 where bs.b_id = t.b_id 
   and bs.b_id = h.b_id 
   and t.name_id in (???) 
   and bs.is_detached = ? 
 group by h.b_type_id, 
          t.name_id

In MySQL it gives exactly what I want, but it seems to fail in PSQL and Oracle, plus execution in Oracle results in: “ORA-00933: SQL command not properly ended” (which usually occurs in INSERT queries as Google suggests).

I suppose there is a DB independent way to do the same. Please advice.

Answer 1

Try:

select max(bs.b_id), h.b_type_id, t.name_id 
  from b_state bs
  inner join t_info t on bs.b_id = t.b_id
  inner join history h on bs.b_id = h.b_id
  where t.name_id in (???) and bs.is_detached = ?
  group by h.b_type_id, t.name_id