Question

My goal is to achieve a result set like the following

CODE | TOTAL1 | TOTAL2  
1    | 56     | 34  
2    | 12     | 15  
3    | 90     | 3

There are 2 tables e.g tableA and tableB
The counts are different by tableB.type

SELECT   code, COUNT (*) AS total1  
FROM tableA a
WHERE a.ID IN (select ID from tableB
    where type = 'XYZ')
GROUP BY code


SELECT   code, COUNT (*) AS total2  
FROM tableA a
WHERE a.ID IN (select ID from tableB
    where type = 'ABC')
GROUP BY code

I’d like to display the count for each code per type in the same query

Thanks in advance

Answer 1

Subqueries :

SELECT   code, (select COUNT (*) AS total1  
FROM tableA a1
WHERE a.ID IN (select ID from tableB
    where type = 'XYZ')
    and a1.code = tableA.code) as Total1,  
(select COUNT (*) AS total2  
FROM tableA a2
WHERE a.ID IN (select ID from tableB
    where type = 'ABC')
    and a2.code = tableA.code) as Total2)
from tableA
group by Code