Question

Will the below query work? Explain.

sql
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SELECT COUNT(Id), Name, Address__c FROM Opportunity GROUP BY Name.

Answer 1

The given SQL query will not work because the SELECT clause contains columns that are not part of the GROUP BY clause. A correct version of the query could be: SELECT COUNT(Id), Name, Address__c FROM Opportunity GROUP BY Name, Address__c;

Step-by-step explanation:

The given SQL query will not work because the SELECT clause contains columns that are not part of the GROUP BY clause. When using the GROUP BY clause the SELECT clause should only include columns that are either part of the GROUP BY clause or are used with aggregate functions.

In this case, the query is trying to select the COUNT(Id) and the Name and Address__c columns. To make the query work, the Name and Address__c columns should be included in the GROUP BY clause or an aggregate function should be applied to them.

A correct version of the query could be:

SELECT COUNT(Id), Name, Address__c FROM Opportunity GROUP BY Name, Address__c;