A query that required a derived table. : Inline view « Subquery « SQL Server / T-SQL Tutorial

1. SQL Server / T-SQL Tutorial
2. Subquery
3. Inline view

6>      CREATE TABLE MyTempTable
7>      (
8>           ThisCol varchar(10)
9>      )
10>     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>
3>     INSERT MyTempTable
4>           SELECT    Col1
5>           FROM      (SELECT DISTINCT Col1 = CONVERT(varchar(10), qty),
6>                             Col2 = qty
7>                     FROM    sales) xyz
8>           ORDER BY  Col2
9>      GO

(5 rows affected)
1>
2>
3>
4>      SELECT * FROM MyTempTable
5>     GO
ThisCol
----------
10
15
20
25
75

(5 rows affected)
1>
2>     drop table sales
3>      DROP TABLE MyTempTable
4>     GO
1>