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SQL> select * from ASN_MST;
MONTH TOTAL_GROSS_WEIGHT
-------------------- ------------------
Jan 45
Jan 100
Jan 300
Jan 500
Jan 35
SQL>
SQL> select month,
2 sum(decode(sign(total_gross_weight - 45), -1, 1, 0)) "-45", -- <45
3 sum(decode(sign(total_gross_weight - 100),
4 0,
5 null,
6 1,
7 null,
8 decode(sign(total_gross_weight - 45), -1, 0, 1))) "-100", -- 45=< total_gross_weight <100
9 sum(decode(sign(total_gross_weight - 300),
10 0,
11 null,
12 1,
13 null,
14 decode(sign(total_gross_weight -100), -1, 0, 1))) "300", -- 100=< total_gross_weight <300
15 sum(decode(sign(total_gross_weight - 500),
16 0,
17 null,
18 1,
19 null,
20 decode(sign(total_gross_weight - 300), -1, 0, 1))) "500", -- 300=< total_gross_weight <500
21 sum(decode(sign(total_gross_weight - 1000),
22 0,
23 null,
24 1,
25 null,
26 decode(sign(total_gross_weight - 500), -1, 0, 1))) "1000" -- 500=< total_gross_weight <1000
27 from ASN_MST
28 group by month;
MONTH -45 -100 300 500 1000
-------------------- ---------- ---------- ---------- ---------- ----------
Jan 1 1 1 1 1
select to_char(count(a)),to_char(count(b)),to_char(count(c)),to_char(count(d)),to_char(count(e)) from (
select decode(sign(TOTAL_GROSS_WEIGHT - 45), -1, TOTAL_GROSS_WEIGHT, 0, TOTAL_GROSS_WEIGHT) a, --sal <=2000
decode(sign(TOTAL_GROSS_WEIGHT - 100), -1, decode(sign(TOTAL_GROSS_WEIGHT - 45), 1, TOTAL_GROSS_WEIGHT)) b, --sal 2000 to 3000
decode(sign(TOTAL_GROSS_WEIGHT - 300), -1, decode(sign(TOTAL_GROSS_WEIGHT - 100), 1, TOTAL_GROSS_WEIGHT)) c,
decode(sign(TOTAL_GROSS_WEIGHT - 500), -1, decode(sign(TOTAL_GROSS_WEIGHT - 300), 1, TOTAL_GROSS_WEIGHT)) d,
decode(sign(TOTAL_GROSS_WEIGHT - 500), 1, TOTAL_GROSS_WEIGHT, 0, TOTAL_GROSS_WEIGHT)e,SHIP_TO,REQUEST_DATE --sal >= 500
from ASN_MST WHERE PK_NO LIKE '%GG0112%' and REQUEST_DATE>'20120301' and REQUEST_DATE<'20120331')
这样写能sum出来,但是SHIP_TO,REQUEST_DATE 这两个字段,不知道怎么显示出来!select decode(sign(sal - 2000), -1, sal, 0, sal) a, --sal <=2000
decode(sign(sal - 3000), -1, decode(sign(sal - 2000), 1, sal)) b, --sal 2000 to 3000
decode(sign(sal - 3000), 1, sal, 0, sal) c --sal >= 3000
from emp;
--相应数据改下就行
/*
sign()函数判断表示结果0、正数还是负数,分别返回0、1、-1 ,例如:
引用
a=10,b=20
则sign(a-b)返回-1
*/