Activity › Forums › Salesforce® Discussions › When to use COUNT_DISTINCT() Aggregate Function in SOQL ? Salesforce® Discussions When to use COUNT_DISTINCT() Aggregate Function in SOQL ? Posted by Kirandeep on August 18, 2020 at 11:24 AM When to use COUNT_DISTINCT() Aggregate Function in SOQL ? Ayush replied 5 years, 9 months ago 2 Members · 1 Reply 1 Reply Ayush Member August 18, 2020 at 11:47 AM Returns the number of distinct non-null field values matching the query criteria. Log In to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me