This query should return 13 rows. Please point me to the mistake in my code.

MySQL Workbench Local instance 3306 x Query 1 AL-HW07 TALimit to 1000 rows Q Filter objects ON ?.owner-num ms.owner.num 28 WHERE o.city "Glander Bay" AND ms.boat type "Sprite 4000" 29 service-request i -i ?Columns ? Find the service ID and slip ID for each service request whose estimated hours is greater than the number of stimated hours of at least one service request on which the category number is 3. (13 rows)7 ? 32 service ID 34 SELECT service_ID, slip ID 35 36 37 38 ? slip-ID FROM service request sr WHERE est hours> category_num SELECT est_hours ROM service_request WHERE category_num 3); description status 40 41 42 SELECT est-hours, service-ID, slip-ID, category-num FROM service request; ? est-hours spent_hours ? next-service-date | 100% v 34:38 Indexes Q Search Edit: ???Export/Import:?? Result Grid Fiter Rows: est hours service ID slip ID category num 4.00 2.00 1.00 2.00 4.00 3.00 2.00 4.00 8.00 7.00 1 n0 Foreign Keys ?Triggers Views Stored Procedures Functions E ap ex Object Info Session Table: service_request st 13