Yurttas/PL/DBL/oracle/F/01/PC/q02.sql

 1REM
 2REM q02.sql
 3REM
 4REM Which manufactures make laptops with a hard disk of
 5REM at least one gigabyte?
 6REM
 7
 8SELECT DISTINCT P.maker
 9FROM Product P, Laptop L
10WHERE P.model=L.model
11  AND L.hd>=1.0;