sqlplus COMPUTE

COMPUTE 可实现类似于rollup的分组求和功能：

SQL> select deptno,ename,sum(sal) from scott.emp  group by rollup(deptno,ename);

    DEPTNO ENAME        SUM(SAL)
---------- ---------- ----------
        10 KING             5000
        10 CLARK            2450
        10 MILLER           1300
        10                  8750
        20 FORD             3000
        20 ADAMS            1100
        20 JONES            2975
        20 SCOTT            3000
        20 SMITH             800
        20                 10875
        30 WARD             1250
        30 ALLEN            1600
        30 BLAKE            2850
        30 JAMES             950
        30 MARTIN           1250
        30 TURNER           1500
        30                  9400

    DEPTNO ENAME        SUM(SAL)
---------- ---------- ----------
                           29025


SQL> BREAK ON report
SQL> select deptno,ename,sum(sal) empsal from scott.emp  group by deptno,ename;

    DEPTNO ENAME          EMPSAL
---------- ---------- ----------
        10 MILLER           1300
        30 MARTIN           1250
        10 KING             5000
        20 FORD             3000
        20 SMITH             800
        30 BLAKE            2850
        30 ALLEN            1600
        20 JONES            2975
        10 CLARK            2450
        30 TURNER           1500
        30 WARD             1250
        20 SCOTT            3000
        30 JAMES             950
        20 ADAMS            1100
                      ----------
sum                        29025

SQL> break on deptno skip 1 on report
SQL> select deptno,ename,sum(sal) empsal from scott.emp  group by deptno,ename order by 1;

    DEPTNO ENAME          EMPSAL
---------- ---------- ----------
        10 CLARK            2450
           KING             5000
           MILLER           1300

        20 ADAMS            1100
           FORD             3000
           JONES            2975
           SCOTT            3000
           SMITH             800

        30 ALLEN            1600
           BLAKE            2850
           JAMES             950
           MARTIN           1250
           TURNER           1500
           WARD             1250

**********            ----------
sum                        29025

SQL> break on deptno skip 1 on report
SQL> compute sum label "小计:" of sal on deptno
SQL> compute sum label "总计:" of sal on report
select deptno,ename,sal from scott.emp order by deptno;
SQL>

    DEPTNO ENAME             SAL
---------- ---------- ----------
        10 CLARK            2450
           KING             5000
           MILLER           1300
**********            ----------
小计:                       8750

        20 JONES            2975
           FORD             3000
           ADAMS            1100
           SMITH             800
           SCOTT            3000
**********            ----------
小计:                      10875

        30 WARD             1250
           TURNER           1500
           ALLEN            1600
           JAMES             950
           BLAKE            2850
           MARTIN           1250
**********            ----------
小计:                       9400

                      ----------
总计:                      29025

Formatting SQL*Plus Reports : http://docs.oracle.com/cd/B19306_01/server.102/b14357/ch6.htm