Использование представления
Листинг 4.63. Использование представления
booktown=# SELECT * FROM recent_shipments;
num_shipped | max | title
5 | 2001-08-13 09:47:04-07 | The Cat in the Hat
5 | 2001-08-14 13:45:51-07 | The Shining
4 | 2001-08-11 09:55:05-07 | Bartholomew and the Oobleck
3 | 2001-08-14 13:49:00-07 | Franklin in the Dark
3 | 2001-08-15 11:57:40-07 | Goodnight Moon
3 | 2001-08-14 13:41:39-07 | The Tell-Tale Heart
2 | 2001-08-15 14:02:01-07 | 2001: A Space Odyssey
2 | 2001-08-14 08:42:58-07 | Dune
2 | 2001-08-07 13:00:48-07 | Little Women
2 | 2001-08-09 09:30:46-07 | The Velveteen Rabbit
1 | 2001-08-14 07:33:47-07 | Dynamic Anatomy
(11 rows)
booktown=# SELECT * FROM recent_shipments
booktown-# ORDER BY max DESC
booktown-# LIMIT 3;
num_shipped | max | title
2 | 2001-08-15 14:02:01-07 | 2001: A Space Odyssey
3 | 2001-08-15 11:57:40-07 | Goodnight Moon
3 | 2001-08-14 13:49:00-07 | Franklin in the Dark
(3 rows)
