-- MySql
SELECT * FROM emp ORDER BY sal DESC LIMIT 5;
-- SQL Server
SELECT TOP 5 * FROM emp ORDER BY sal DESC;
-- Oracle < 11g
SELECT * FROM ( SELECT * FROM emp ORDER BY sal DESC ) WHERE ROWNUM <= 5;
-- Oracle 12c +
SELECT * FROM emp ORDER BY sal DESC FETCH FIRST 5 ROWS ONLY;
SELECT first_name, age
FROM Customers
LIMIT 2;
SELECT * FROM customer
LIMIT 10;
LIMIT 5