Question

The following query returns results which contains count greater than 0 i.e, it ignores the records which has no entry in om.memberid

SELECT id, organizationname, organizationwebsite, renewDate, COUNT( om.memberid ) 
FROM organization o, organizationmember om
WHERE om.organizationid = o.id
GROUP BY o.id

Can i get the results whose count(om.memberid) is 0 i.e., has no entries in om.memberid.

Please suggest me a solution for this

Answer 1

You could use LEFT JOIN.

SELECT o.id, o.organizationname, o.organizationwebsite, o.renewDate, COUNT( om.memberid ) 
FROM organization o
LEFT JOIN organizationmember om ON om.organizationid = o.id 
GROUP BY o.id