ISNULL with subquery
11> CREATE TABLE titles(
12> title_id varchar(20),
13> title varchar(80) NOT NULL,
14> type char(12) NOT NULL,
15> pub_id char(4) NULL,
16> price money NULL,
17> advance money NULL,
18> royalty int NULL,
19> ytd_sales int NULL,
20> notes varchar(200) NULL,
21> pubdate datetime NOT NULL
22> )
23> GO
1>
2> insert titles values ('1', 'Secrets', 'popular_comp', '1389', $20.00, $8000.00, 10, 4095,'Note 1','06/12/94')
3> insert titles values ('2', 'The', 'business', '1389', $19.99, $5000.00, 10, 4095,'Note 2','06/12/91')
4> insert titles values ('3', 'Emotional', 'psychology', '0736', $7.99, $4000.00, 10, 3336,'Note 3','06/12/91')
5> insert titles values ('4', 'Prolonged', 'psychology', '0736', $19.99, $2000.00, 10, 4072,'Note 4','06/12/91')
6> insert titles values ('5', 'With', 'business', '1389', $11.95, $5000.00, 10, 3876,'Note 5','06/09/91')
7> insert titles values ('6', 'Valley', 'mod_cook', '0877', $19.99, $0.00, 12, 2032,'Note 6','06/09/91')
8> insert titles values ('7', 'Any?', 'trad_cook', '0877', $14.99, $8000.00, 10, 4095,'Note 7','06/12/91')
9> insert titles values ('8', 'Fifty', 'trad_cook', '0877', $11.95, $4000.00, 14, 1509,'Note 8','06/12/91')
10> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2>
3>
4> SELECT title, pub_id, ISNULL(price, (SELECT MIN(price)
5> FROM titles)) FROM titles
6> GO
title pub_id
-------------------------------------------------------------------------------- ------ ---------------------
Secrets 1389 20.0000
The 1389 19.9900
Emotional 0736 7.9900
Prolonged 0736 19.9900
With 1389 11.9500
Valley 0877 19.9900
Any? 0877 14.9900
Fifty 0877 11.9500
(8 rows affected)
1>
2>
3> drop table titles;
4> GO
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