1、创建表

desc test_rollup;
Name        Type         Nullable Default Comments
----------- ------------ -------- ------- --------
TYPE_NAME   VARCHAR2(10) Y
TYPE_VALUE  NUMBER       Y
TYPE_NAME2  VARCHAR2(10) Y
TYPE_VALUE2 NUMBER       Y  

2、插入数据

select * from test_rollup;
TYPE_NAME  TYPE_VALUE TYPE_NAME2 TYPE_VALUE2
---------- ---------- ---------- -----------
a                 123 t1                 120
a                 423 t2                 200
a                 523 t1                 555
b                 223 x1                 504
b                 283 x2                 484
c                 103 y1                 333
c                 843 y2                 984
c                 899 y2                 151
c                 100 y2                 150
d                 204 s1                 606
10 rows selected

3、使用grouping_id查询结果

 select type_name,
        type_name2,
        decode(grouping_id(type_name), 0, type_name, '总计')g_type,
        decode(grouping_id(type_name2), 0, type_name2, decode(grouping_id(type_name),0,'小计','总计'))g2_type,
        grouping_id(type_name, type_name2)gg_type,
        sum(type_value),
        sum(type_value2)
   from test_rollup
  group by rollup(type_name, type_name2);
TYPE_NAME  TYPE_NAME2 G_TYPE     G2_TYPE       GG_TYPE SUM(TYPE_VALUE) SUM(TYPE_VALUE2)
---------- ---------- ---------- ---------- ---------- --------------- ----------------
a          t1         a          t1                  0             646              675
a          t2         a          t2                  0             423              200
a                     a          小计                1            1069              875
b          x1         b          x1                  0             223              504
b          x2         b          x2                  0             283              484
b                     b          小计                1             506              988
c          y1         c          y1                  0             103              333
c          y2         c          y2                  0            1842             1285
c                     c          小计                1            1945             1618
d          s1         d          s1                  0             204              606
d                     d          小计                1             204              606
                      总计       总计                3            3724             4087
12 rows selected