Changing the Position of Columns Passed to ROLLUP : Rollup « Analytical Functions « Oracle PL / SQL

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Oracle PL / SQL » Analytical Functions » Rollup 
Changing the Position of Columns Passed to ROLLUP
 


SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /

Table created.

SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ('01','Jason',    'Martin',  to_date('19960725','YYYYMMDD'), to_date('20060725','YYYYMMDD'), 1234.56'Toronto',  'Programmer')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('02','Alison',   'Mathews', to_date('19760321','YYYYMMDD'), to_date('19860221','YYYYMMDD'), 6661.78'Vancouver','Tester')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('03','James',    'Smith',   to_date('19781212','YYYYMMDD'), to_date('19900315','YYYYMMDD'), 6544.78'Vancouver','Tester')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('04','Celia',    'Rice',    to_date('19821024','YYYYMMDD'), to_date('19990421','YYYYMMDD'), 2344.78'Vancouver','Manager')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('05','Robert',   'Black',   to_date('19840115','YYYYMMDD'), to_date('19980808','YYYYMMDD'), 2334.78'Vancouver','Tester')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('06','Linda',    'Green',   to_date('19870730','YYYYMMDD'), to_date('19960104','YYYYMMDD'), 4322.78,'New York',  'Tester')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('07','David',    'Larry',   to_date('19901231','YYYYMMDD'), to_date('19980212','YYYYMMDD'), 7897.78,'New York',  'Manager')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('08','James',    'Cat',     to_date('19960917','YYYYMMDD'), to_date('20020415','YYYYMMDD'), 1232.78,'Vancouver', 'Tester')
  3  /

row created.

SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select from Employee
  2  /

ID   FIRST_NAME LAST_NAME  START_DATE  END_DATE        SALARY CITY       DESCRIPTION
---- ---------- ---------- ----------- ----------- ---------- ---------- ---------------
01   Jason      Martin     1996-JUL-25 2006-JUL-25    1234.56 Toronto    Programmer
02   Alison     Mathews    1976-MAR-21 1986-FEB-21    6661.78 Vancouver  Tester
03   James      Smith      1978-DEC-12 1990-MAR-15    6544.78 Vancouver  Tester
04   Celia      Rice       1982-OCT-24 1999-APR-21    2344.78 Vancouver  Manager
05   Robert     Black      1984-JAN-15 1998-AUG-08    2334.78 Vancouver  Tester
06   Linda      Green      1987-JUL-30 1996-JAN-04    4322.78 New York   Tester
07   David      Larry      1990-DEC-31 1998-FEB-12    7897.78 New York   Manager
08   James      Cat        1996-SEP-17 2002-APR-15    1232.78 Vancouver  Tester

rows selected.

SQL>
SQL>
SQL>
SQL> -- Changing the Position of Columns Passed to ROLLUP
SQL>
SQL> SELECT city, description, SUM(salary)
  2  FROM employee
  3  GROUP BY ROLLUP(city, description);

CITY       DESCRIPTION     SUM(SALARY)
---------- --------------- -----------
Toronto    Programmer          1234.56
Toronto                        1234.56
New York   Tester              4322.78
New York   Manager             7897.78
New York                      12220.56
Vancouver  Tester             16774.12
Vancouver  Manager             2344.78
Vancouver                      19118.9
                              32574.02

rows selected.

SQL>
SQL>
SQL> SELECT city, description, SUM(salary)
  2  FROM employee
  3  GROUP BY ROLLUP(description, city);

CITY       DESCRIPTION     SUM(SALARY)
---------- --------------- -----------
New York   Tester              4322.78
Vancouver  Tester             16774.12
           Tester              21096.9
New York   Manager             7897.78
Vancouver  Manager             2344.78
           Manager            10242.56
Toronto    Programmer          1234.56
           Programmer          1234.56
                              32574.02

rows selected.

SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /

Table dropped.

SQL>
SQL>
           
         
  
Related examples in the same category
1. Rollup: give the sum on the aggregate; it is used as an add-on to the GROUP BY clause
2. With ROLLUP and ROW_NUMBER added
3. The ROLLUP clause extends GROUP BY to return a row containing a subtotal for each group along with a total for all groups
4. Passing Multiple Columns to ROLLUP: groups the rows into blocks with the same column values
5. Using AVG with ROLLUP
6. Rollup function in group by clause
7. ROLLUP and RANK() to get the sales rankings by product type ID
8. Demonstrate a partial rollup
9. Count employees, group by ROLLUP(department no, job title)
10. group by ROLLUP(department no, job title)
11. group by rollup
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