PIVOT and UNPIVOT Operators : PIVOT « Analytical Functions « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Analytical Functions » PIVOT 
14. 7. 1. PIVOT and UNPIVOT Operators
4create table department(
5>    dept_name     char(20)     not null,
6>    emp_cnt       int          not null,
7>    budget        float,
8>    date_month    datetime);
9> GO
1>
2insert into department values('Research', 550000'01.01.2002');
3insert into department values('Research', 1070000'01.02.2002');
4insert into department values('Research', 565000'01.07.2002');
5insert into department values('Accounting', 510000'01.07.2002');
6insert into department values('Accounting', 1040000'01.02.2002');
7insert into department values('Accounting', 630000'01.01.2002');
8insert into department values('Accounting', 640000'01.02.2003');
9insert into department values('Marketing', 610000'01.01.2003');
10insert into department values('Marketing', 1040000'01.02.2003');
11insert into department values('Marketing', 330000'01.07.2003');
12insert into department values('Marketing', 540000'01.01.2003');
13> GO

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)
1>
2>
3>       select *, month(date_monthas month, year(date_monthas year
4>       into department_pivot
5>       from department
6>       go

(11 rows affected)
1>       SELECT year, [1as January, [2as February, [7July FROM
2>       (select budget, year, month from department_pivotp2
3>       PIVOT
4>       (SUM(budget)
5>       FOR month
6>       IN ([1],[2],[7]))
7>       AS P
8> GO
year        January                  February                 July
----------- ------------------------ ------------------------ ------------------------
       2002                   265000                     NULL                     NULL
       2003                   160000                     NULL                     NULL

(rows affected)
1>
2> drop table department;
3> GO
1>
2>
3>
14. 7. PIVOT
14. 7. 1. PIVOT and UNPIVOT Operators
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