Question

I’ve got a table that has, for example, ID and Name.

There are multiple rows that contain blank names, but there also can be multiple rows with the same name. I’d like to select all IDs, counting each name only once (DISTINCT), but selecting ALL of the blanks.

The following query naturally only selects ONE blank name. How can I select all the distinct names plus all of the blank names?

SELECT DISTINCT Name, ID
FROM TestTable

Answer 1

SELECT DISTINCT Name, ID FROM TestTable where Name <> ''
union all
SELECT Name, ID FROM TestTable where Name = ''