OR
You can select rows based on multiple conditions connected by OR. Conditions connected by OR select every row that satisfies any of the conditions.
This query:
SELECT ID, NAME, YEARS, SALARY
FROM Q.STAFF
WHERE YEARS = 10 OR SALARY > 20000
Produces this report:
ID NAME YEARS SALARY
----- --------- ----- ---------
50 HANES 10 20659.80
140 FRAYE 6 21150.00
160 MOLINARE 7 22959.20
210 LU 10 20010.00
260 JONES 12 21234.00
290 QUILL 10 19818.00
310 GRAHAM 13 21000.00