Joins and Subqueries : Table Join « Table Join « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Table Join » Table Join 
4.1.7.Joins and Subqueries
3>
4>
5CREATE TABLE titles(
6>    title_id       varchar(20),
7>    title          varchar(80)       NOT NULL,
8>    type           char(12)          NOT NULL,
9>    pub_id         char(4)               NULL,
10>    price          money                 NULL,
11>    advance        money                 NULL,
12>    royalty        int                   NULL,
13>    ytd_sales      int                   NULL,
14>    notes          varchar(200)          NULL,
15>    pubdate        datetime          NOT NULL
16)
17> GO
1>
2insert titles values ('1''Secrets',   'popular_comp', '1389', $20.00, $8000.00, 104095,'Note 1','06/12/94')
3insert titles values ('2''The',       'business',     '1389', $19.99, $5000.00, 104095,'Note 2','06/12/91')
4insert titles values ('3''Emotional', 'psychology',   '0736', $7.99,  $4000.00, 103336,'Note 3','06/12/91')
5insert titles values ('4''Prolonged', 'psychology',   '0736', $19.99, $2000.00, 104072,'Note 4','06/12/91')
6insert titles values ('5''With',      'business',     '1389', $11.95, $5000.00, 103876,'Note 5','06/09/91')
7insert titles values ('6''Valley',    'mod_cook',     '0877', $19.99, $0.00,    122032,'Note 6','06/09/91')
8insert titles values ('7''Any?',      'trad_cook',    '0877', $14.99, $8000.00, 104095,'Note 7','06/12/91')
9insert titles values ('8''Fifty',     'trad_cook',    '0877', $11.95, $4000.00, 141509,'Note 8','06/12/91')
10> GO

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)
1>
2CREATE 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
1insert sales values('1''QA7442.3', '09/13/94', 75'ON Billing','1')
2insert sales values('2''D4482',    '09/14/94', 10'Ne60',    '1')
3insert sales values('3''N914008',  '09/14/94', 20'Ne30',    '2')
4insert sales values('4''N914014',  '09/14/94', 25'Ne30',    '3')
5insert sales values('5''423LL922', '09/14/94', 15'ON Billing','3')
6insert sales values('6''423LL930', '09/14/94', 10'ON Billing','2')
7> GO

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)
1>
2>      SELECT    titles.title, titles.price
3>      FROM      titles JOIN sales ON sales.title_id = titles.title_id
4>      WHERE     sales.qty > 30
5>
6> GO
title                                                                            price
-------------------------------------------------------------------------------- ---------------------
Secrets                                                                                        20.0000

(rows affected)
1>
2> drop table sales;
3> drop table titles;
4> GO
4.1.Table Join
4.1.1.SQL Server 2005 join types fall into three categories: inner, outer, and cross.
4.1.2.Selecting authors and titles using only joins.
4.1.3.A SELECT statement that joins the Bankers and Billings tables
4.1.4.Joining Tables in the WHERE Clause (not ANSI standard)
4.1.5.Using the GROUP BY Clause
4.1.6.Joining three tables.
4.1.7.Joins and Subqueries
4.1.8.Left and Right Outer Joins
4.1.9.Joining Tables in the FROM Clause (ANSI standard)
4.1.10.Table Aliasing
4.1.11.Join tables with two columns
4.1.12.The result of the previous join is then joined to another table
4.1.13.SQL-92 Three-Way Inner Joins
4.1.14.Forcing the Order of Join Processing
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