Group by a multiple select request from different tables - sql

Question

so I made this :
select (
SELECT COUNT (*)
from TXN_TOTO
WHERE (CO1 = '1L' OR CO1 = '1') AND OP1 in('P3', 'R1')
) as A,
(
SELECT COUNT (*)
from TXN_TITI
WHERE (CO1 = '1L' OR CO1 = '1') AND OP1 in('P3', 'R1') AND STAT = 6
) as B,
(
SELECT COUNT (*)
from T_TITI tti inner join T_TATA ttdi
ON tti.ID_DINT = ttdi.ID_DINT
WHERE (CO1 = '1L' AND OP1 in('01', '04', 'Z8')) OR (CO1 = '1' AND OP1 in('P3', 'R1')) AND COM = 'O'
) as C
FROM DUAL;
I get result who look like this :
A | B | C
----------
7 | 1 | 9
Both TXN_TOTO and TXN_TITI table have a 'cent' column, I'd like to filter on that in order to get
CENT | A | B | C
----------------
0 | 2 | 0 | 0
1 | 2 | 1 | 4
2 | 3 | 0 | 5
Since I getting my data from 2 different tables I really don't see how to do it.
Thanks.
EDIT : as requested here are example data and result
TXN_TOTO
ID_DINT | CO1 | OP1 | DID_CENT
------------------------------
1 2L Z3 088
2 1L 1 089
3 1 P3 155
4 1L Z3 155
5 1L 1 077
6 1 P3 077
7 1L Z3 077
8 1L 1 077
9 1 P3 022
TXN_TITI
ID_DINT | CO1 | OP1 | DID_CENT |STAT
------------------------------------
1 2L Z3 088 6
2 1L 1 089 6
3 1 P3 155 6
4 1L Z3 155 6
5 1L 1 077 6
6 1 P3 077 6
7 1L Z3 077 6
8 1L Z8 077 6
9 1 R1 022 5
TXN_TATA
ID_DINT | COM |
---------------
1 O
2 O
3 O
4 O
5 N
6 O
7 O
8 O
9 O
Expected results :
DID_CENT | A | B | C
155 1 1 0
077 1 1 1
022 1 0 0
A is only computed from TXN_TOTO
B is only computed from TXN_TITI, only difference is the stat column
C is a join of TITI and TATA, you need to have a O in TATA

Answer 1

select coalesce(A.DID_CENT,B.DID_CENT,C.DID_CENT) DID_CENT,
nvl(sum(A.cnt),0) A, nvl(sum(B.cnt),0) B, nvl(sum(C.cnt),0) C
from
(
SELECT DID_CENT, COUNT (*) cnt
from TXN_TOTO
WHERE (CO1 = '1L' OR CO1 = '1') AND OP1 in('P3', 'R1')
GROUP BY DID_CENT
) A
FULL JOIN
(
SELECT DID_CENT, COUNT (*) cnt
from TXN_TITI
WHERE (CO1 = '1L' OR CO1 = '1') AND OP1 in('P3', 'R1') AND STAT = 6
GROUP BY DID_CENT
) B ON A.DID_CENT=B.DID_CENT
FULL JOIN
(
SELECT DID_CENT, COUNT (*) cnt
from TXN_TITI tti inner join TXN_TATA ttdi
ON tti.ID_DINT = ttdi.ID_DINT
WHERE (CO1 = '1L' AND OP1 in('01', '04', 'Z8')) OR (CO1 = '1' AND OP1 in('P3', 'R1'))
GROUP BY DID_CENT
) C ON B.DID_CENT=C.DID_CENT
GROUP BY coalesce(A.DID_CENT,B.DID_CENT,C.DID_CENT)

Answer 2

this is because CENT data has different values according to your A,B,C.
Dual table cant get more than one row so it is not possible to write such a sql.
Instead,
use
count(*) over(partition by CENT)