WITH ROLLUP for calculating subtotals and totals on the first column in the GROUP BY column list : ROLLUP « Analytical Functions « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Analytical Functions » ROLLUP 
14. 8. 5. WITH ROLLUP for calculating subtotals and totals on the first column in the GROUP BY column list
6CREATE TABLE employee(
7>    id          INTEGER NOT NULL PRIMARY KEY,
8>    first_name  VARCHAR(10),
9>    last_name   VARCHAR(10),
10>    salary      DECIMAL(10,2),
11>    start_Date  DATETIME,
12>    region      VARCHAR(10),
13>    city        VARCHAR(20),
14>    managerid   INTEGER
15);
16> GO
1INSERT INTO employee VALUES (1'Jason' ,  'Martin', 5890,'2005-03-22','North','Vancouver',3);
2> GO

(rows affected)
1INSERT INTO employee VALUES (2'Alison',  'Mathews',4789,'2003-07-21','South','Utown',4);
2> GO

(rows affected)
1INSERT INTO employee VALUES (3'James' ,  'Smith',  6678,'2001-12-01','North','Paris',5);
2> GO

(rows affected)
1INSERT INTO employee VALUES (4'Celia' ,  'Rice',   5567,'2006-03-03','South','London',6);
2> GO

(rows affected)
1INSERT INTO employee VALUES (5'Robert',  'Black',  4467,'2004-07-02','East','Newton',7);
2> GO

(rows affected)
1INSERT INTO employee VALUES (6'Linda' ,  'Green' , 6456,'2002-05-19','East','Calgary',8);
2> GO

(rows affected)
1INSERT INTO employee VALUES (7'David' ,  'Larry',  5345,'2008-03-18','West','New York',9);
2> GO

(rows affected)
1INSERT INTO employee VALUES (8'James' ,  'Cat',    4234,'2007-07-17','West','Regina',9);
2> GO

(rows affected)
1INSERT INTO employee VALUES (9'Joan'  ,  'Act',    6123,'2001-04-16','North','Toronto',10);
2> GO

(rows affected)
1>
2select from employee;
3> GO
id          first_name last_name  salary       start_Date              region     city                 managerid
----------- ---------- ---------- ------------ ----------------------- ---------- -------------------- -----------
          Jason      Martin          5890.00 2005-03-22 00:00:00.000 North      Vancouver                      3
          Alison     Mathews         4789.00 2003-07-21 00:00:00.000 South      Utown                          4
          James      Smith           6678.00 2001-12-01 00:00:00.000 North      Paris                          5
          Celia      Rice            5567.00 2006-03-03 00:00:00.000 South      London                         6
          Robert     Black           4467.00 2004-07-02 00:00:00.000 East       Newton                         7
          Linda      Green           6456.00 2002-05-19 00:00:00.000 East       Calgary                        8
          David      Larry           5345.00 2008-03-18 00:00:00.000 West       New York                       9
          James      Cat             4234.00 2007-07-17 00:00:00.000 West       Regina                         9
          Joan       Act             6123.00 2001-04-16 00:00:00.000 North      Toronto                       10

(rows affected)
1>
2>
3>
4SELECT region, city, SUM(salary)
5FROM Employee
6> GROUP BY region, city
7> WITH ROLLUP
8> GO
region     city
---------- -------------------- ----------------------------------------
East       Calgary                                               6456.00
East       Newton                                                4467.00
East       NULL                                                 10923.00
North      Paris                                                 6678.00
North      Toronto                                               6123.00
North      Vancouver                                             5890.00
North      NULL                                                 18691.00
South      London                                                5567.00
South      Utown                                                 4789.00
South      NULL                                                 10356.00
West       New York                                              5345.00
West       Regina                                                4234.00
West       NULL                                                  9579.00
NULL       NULL                                                 49549.00

(14 rows affected)
1>
2>
3> drop table employee;
4> GO
14. 8. ROLLUP
14. 8. 1. Using the ROLLUP Operator
14. 8. 2. A summary query that includes a final summary row with 'WITH ROLLUP'
14. 8. 3. Group hierarchy using the ROLLUP operator is determined by the order in which the grouping columns are specified.
14. 8. 4. A summary query that includes a summary row for each grouping level
14. 8. 5. WITH ROLLUP for calculating subtotals and totals on the first column in the GROUP BY column list
14. 8. 6. Summarizing Data with ROLLUP
14. 8. 7. ROLLUP Returns Super Aggregation Only in One Direction
14. 8. 8. Using ROLLUP to Get the Order Count by Year and Month
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