PARTITION BY, order by and 'range unbounded preceding' : RANGE « Analytical Functions « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. Analytical Functions
3. RANGE

SQL>
SQL>
SQL> create table employees(
  2    empno      NUMBER(4)
  3  , ename      VARCHAR2(8)
  4  , init       VARCHAR2(5)
  5  , job        VARCHAR2(8)
  6  , mgr        NUMBER(4)
  7  , bdate      DATE
  8  , msal       NUMBER(6,2)
  9  , comm       NUMBER(6,2)
 10  , deptno     NUMBER(2) ) ;

Table created.

SQL>
SQL>
SQL> insert into employees values(1,'Jason',  'N',  'TRAINER', 2,   date '1965-12-18',  800 , NULL,  10);

1 row created.

SQL> insert into employees values(2,'Jerry',  'J',  'SALESREP',3,   date '1966-11-19',  1600, 300,   10);

1 row created.

SQL> insert into employees values(3,'Jord',   'T' , 'SALESREP',4,   date '1967-10-21',  1700, 500,   20);

1 row created.

SQL> insert into employees values(4,'Mary',   'J',  'MANAGER', 5,   date '1968-09-22',  1800, NULL,  20);

1 row created.

SQL> insert into employees values(5,'Joe',    'P',  'SALESREP',6,   date '1969-08-23',  1900, 1400,  30);

1 row created.

SQL> insert into employees values(6,'Black',  'R',  'MANAGER', 7,   date '1970-07-24',  2000, NULL,  30);

1 row created.

SQL> insert into employees values(7,'Red',    'A',  'MANAGER', 8,   date '1971-06-25',  2100, NULL,  40);

1 row created.

SQL> insert into employees values(8,'White',  'S',  'TRAINER', 9,   date '1972-05-26',  2200, NULL,  40);

1 row created.

SQL> insert into employees values(9,'Yellow', 'C',  'DIRECTOR',10,  date '1973-04-27',  2300, NULL,  20);

1 row created.

SQL> insert into employees values(10,'Pink',  'J',  'SALESREP',null,date '1974-03-28',  2400, 0,     30);

1 row created.

SQL>
SQL>
SQL>
SQL> break on mgr
SQL>
SQL> select mgr, ename, msal
  2  ,      sum(msal) over
  3         ( PARTITION BY mgr
  4           order by mgr, msal, empno
  5           range unbounded preceding
  6         ) as cumulative
  7  from   employees
  8  order  by mgr, msal;

   MGR      last_name         MSAL CUMULATIVE
------ -------------------- ------ ----------
     2 Jason                   800        800
     3 Jerry                  1600       1600
     4 Jord                   1700       1700
     5 Mary                   1800       1800
     6 Joe                    1900       1900
     7 Black                  2000       2000
     8 Red                    2100       2100
     9 White                  2200       2200
    10 Yellow                 2300       2300
null   Pink                   2400       2400

10 rows selected.

SQL>
SQL> clear breaks
breaks cleared
SQL>
SQL> drop table employees;

Table dropped.

SQL>
SQL>