Deleting sales for a publisher by name. : Delete « Insert Delete Update « SQL Server / T-SQL Tutorial






6>
7>
8> CREATE TABLE publishers(
9>    pub_id         char(4)           NOT NULL,
10>    pub_name       varchar(40)           NULL,
11>    city           varchar(20)           NULL,
12>    state          char(2)               NULL,
13>    country        varchar(30)           NULL DEFAULT('USA')
14> )
15> GO
1>
2>
3> insert publishers values('1', 'Publisher A', 'Vancouver',  'MA', 'USA')
4> insert publishers values('2', 'Publisher B', 'Washington', 'DC', 'USA')
5> insert publishers values('3', 'Publisher C', 'Berkeley',   'CA', 'USA')
6> insert publishers values('4', 'Publisher D', 'New York',   'NY', 'USA')
7> insert publishers values('5', 'Publisher E', 'Chicago',    'IL', 'USA')
8> insert publishers values('6', 'Publisher F', 'Dallas',     'TX', 'USA')
9> insert publishers values('7', 'Publisher G', 'Vancouver',  'BC', 'Canada')
10> insert publishers values('8', 'Publisher H', 'Paris',      NULL, 'France')
11> 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> CREATE TABLE titles(
2>    title_id       varchar(20),
3>    title          varchar(80)       NOT NULL,
4>    type           char(12)          NOT NULL,
5>    pub_id         char(4)               NULL,
6>    price          money                 NULL,
7>    advance        money                 NULL,
8>    royalty        int                   NULL,
9>    ytd_sales      int                   NULL,
10>    notes          varchar(200)          NULL,
11>    pubdate        datetime          NOT NULL
12> )
13> GO
1>
2> CREATE TABLE sales(
3>    stor_id        char(4)           NOT NULL,
4>    ord_num        varchar(20)       NOT NULL,
5>    ord_date       datetime          NOT NULL,
6>    qty            smallint          NOT NULL,
7>    payterms       varchar(12)       NOT NULL,
8>    title_id       varchar(80)
9> )
10> GO
1> insert sales values('1', 'QA7442.3', '09/13/94', 75, 'ON Billing','1')
2> insert sales values('2', 'D4482',    '09/14/94', 10, 'Net 60',    '1')
3> insert sales values('3', 'N914008',  '09/14/94', 20, 'Net 30',    '2')
4> insert sales values('4', 'N914014',  '09/14/94', 25, 'Net 30',    '3')
5> insert sales values('5', '423LL922', '09/14/94', 15, 'ON Billing','3')
6> insert sales values('6', '423LL930', '09/14/94', 10, 'ON Billing','2')
7> GO

(1 rows affected)

(1 rows affected)

(1 rows affected)

(1 rows affected)

(1 rows affected)

(1 rows affected)
1>
2> DELETE    sales
3>      FROM      sales
4>                JOIN titles t ON sales.title_id = t.title_id
5>                JOIN publishers p ON t.pub_id = p.pub_id
6>      WHERE     p.pub_name = 'Publisher A'
7> GO

(0 rows affected)
1>
2> drop table sales;
3> drop table publishers;
4> drop table titles;
5> GO








2.4.Delete
2.4.1.The syntax of the DELETE statement
2.4.2.A DELETE statement with where clause
2.4.3.A DELETE statement that removes all the rows from the BillingCopy table
2.4.4.A DELETE statement that removes a single row from the BillingCopy table
2.4.5.Deleting sales for a publisher by name.
2.4.6.A DELETE statement with subquery
2.4.7.Delete with table join
2.4.8.A DELETE statement with NOT IN and subquery
2.4.9.Deleting sales based on the average quantity of sales.