SQL ORDER BY LIMIT
We can retrieve limited rows from the database. I can be used in pagination where are forced to show only limited records like 10, 50, 100 etc.
LIMIT CLAUSE FOR ORACLE SQL:
If you want to use LIMIT clause with SQL, you have to use ROWNUM queries because it is used after result are selected.
You should use the following code:
SELECT name, age
FROM
(SELECT name, age, ROWNUM r
FROM
(SELECT name, age, FROM employee_data
ORDER BY age DESC
)
WHERE ROWNUM <=40
)
WHERE r >= 21;
FROM
(SELECT name, age, ROWNUM r
FROM
(SELECT name, age, FROM employee_data
ORDER BY age DESC
)
WHERE ROWNUM <=40
)
WHERE r >= 21;
This query will give you 21th to 40th rows.
