I Oracle 12c :
-- more than 5 rows being returned, if multiple rows
-- match the value of the 5th row
SELECT e.ID_No, e.Name
FROM Employees e
ORDER BY e.Salary
FETCH FIRST 5 ROWS WITH TIES;
-- only 5 rows being returned, even if multiple rows
-- match the value of the 5th row
SELECT e.ID_No, e.Name
FROM Employees e
ORDER BY e.Salary
FETCH FIRST 5 ROWS ONLY;
-- NEXT clause may be replaced with FIRST
SELECT e.ID_No, e.Name
FROM Employees e
ORDER BY e.Salary
FETCH NEXT 5 ROWS ONLY;
Før Oracle 12c :
SELECT e.ID_No, e.Name
FROM ( SELECT ID_No, Name, row_number() over (order by salary) seq FROM Employees ) e
WHERE e.seq <= 5
ORDER BY e.seq;
forespørgsler kan bruges til Top-N-forespørgsler