Hi, I have the following SQL:
SELECT ltb.v_id,
count(ltb.v_id) AS num_of_times_borrowed,
vtb.equip_attr[1] AS year,
vtb.equip_attr[3] AS model,
vtb.equip_attr[4] AS type
FROM log_tb ltb, vehicle_tb vtb
WHERE ltb.v_id=vtb.equip_id
GROUP BY ltb.v_id
ORDER BY year;
"ERROR: Attribute vtb.equip_attr must be GROUPed or used in an aggregate
function"
but, it didn't work. I want to know how many time each vehicle has been
borrowed. Please help. Thanks.
- Bernie