Yurttas/PL/DBL/mysql-f-2010/01/PC/q13.sql
Revision as of 02:10, 4 November 2013 by MassBot1 (talk | contribs) (Created page with "<syntaxhighlight lang="sql" line start="1" enclose="div">→REM REM q13.sql REM REM Delete all Laptops made by a manufacturer that doesn't make REM printers. REM: \. set-db...")
1/*
2REM
3REM q13.sql
4REM
5REM Delete all Laptops made by a manufacturer that doesn't make
6REM printers.
7REM
8*/
9
10\. set-db.sql
11
12DELETE FROM Product
13WHERE type='laptop'
14 AND maker NOT IN (SELECT maker
15 FROM Product
16 WHERE type='printer');
17
18DELETE FROM Laptop
19WHERE model NOT IN (SELECT model
20 FROM Product);