DENSE_RANK() OVER : DENSE_RANK « Analytical Functions « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Analytical Functions » DENSE_RANK 
14. 3. 1. DENSE_RANK() OVER
5create table department(
6>    dept_name     char(20)     not null,
7>    emp_cnt       int          not null,
8>    budget        float,
9>    date_month    datetime);
10> 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>
3SELECT DENSE_RANK() OVER(ORDER BY budget DESCAS rank_budget,
4>        ROW_NUMBER() OVER(ORDER BY budget DESCAS row_number,dept_name, emp_cnt, budget
5FROM department
6WHERE budget <= 50000;
7> GO
rank_budget          row_number           dept_name            emp_cnt     budget
-------------------- -------------------- -------------------- ----------- ------------------------
                   1                    1 Research                       5                    50000
                   2                    2 Accounting                    10                    40000
                   2                    3 Accounting                     6                    40000
                   2                    4 Marketing                     10                    40000
                   2                    5 Marketing                      5                    40000
                   3                    6 Marketing                      3                    30000
                   3                    7 Accounting                     6                    30000
                   4                    8 Accounting                     5                    10000
                   4                    9 Marketing                      6                    10000

(rows affected)
1>
2> drop table department;
3> GO
1>
2>
3>
14. 3. DENSE_RANK
14. 3. 1. DENSE_RANK() OVER
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