oracle-按月、日、时分组查询数据，为空的数据补零
------月
|
1
2
3
4
5
6
7
8
9
10
11
|
select
nvl(t1.tvalue, 0)
"data1"
, t2.datevalue
"name"
from
(
select
sum
(t.TSAI03) tvalue, TO_CHAR(t.TSAI01,
'yyyy-mm'
) timevalue
from
TSA009 t
where
TO_CHAR(t.TSAI01,
'YYYY-MM-DD'
)
like
'2012%'
and
t.unit_code
like
'411500A0050000'
group
by
TO_CHAR(t.TSAI01,
'yyyy-mm'
)) t1,
(
select
'2012-'
|| lpad(
level
, 2, 0) datevalue
from
dual
connect
by
level
< 13) t2
where
t1.timevalue(+) = t2.datevalue
order
by
t2.datevalue
|
-----日
select
nvl(t1.tvalue, 0)
"data1"
, t2.datevalue
"name"
from
(
select
sum
(t.TSAI03) tvalue,
TO_CHAR(t.TSAI01,
'yyyy-mm-dd'
) timevalue
from
TSA009 t
where
TO_CHAR(t.TSAI01,
'YYYY-MM-DD'
)
like
'2012-04%'
and
t.unit_code
like
'411500A0050000'
group
by
TO_CHAR(t.TSAI01,
'yyyy-mm-dd'
)) t1,
(
select
'2012-04-'
|| lpad(
level
, 2, 0) datevalue
from
dual
connect
by
level
< (
select
to_number(substr(last_day(to_date(
'2012-04-10'
,
'yyyy-mm-dd'
)),
0,
2))
from
dual) + 1) t2
where
t1.timevalue(+) = t2.datevalue
order
by
t2.datevalue
|
----时
select
nvl(t1.tvalue, 0)
"data1"
, t2.datevalue
"name"
from
(
select
sum
(t.TSAJ03) tvalue,
TO_CHAR(t.TSAJ01,
'yyyy-mm-dd hh24'
) timevalue
from
TSA010 t
where
TO_CHAR(t.TSAJ01,
'YYYY-MM-DD'
)
like
'2012-04-10%'
and
t.unit_code
like
'411500A0050000'
group
by
TO_CHAR(t.TSAJ01,
'yyyy-mm-dd hh24'
)) t1,
(
select
'2012-04-10 '
|| lpad(
level
, 2, 0) datevalue
from
dual
connect
by
level
< 25) t2
where
t1.timevalue(+) = t2.datevalue
order
by
t2.datevalue
|
为避免原文丢失,特此转载自:https://www.cnblogs.com/GenghisKhan/archive/2012/07/10/2584571.html
