Find fields that aren't used (have all nulls)

Question

I\'ve inherited a legacy database, and many, many fields are no longer being used. I can tell by querying on the last couple of years and seeing which fields are null, to at

Answer 1

This gives you the count of all records with NULL fields which you can compare to the count of all the records

SELECT COUNT(*)
FROM Table1
WHERE COALESCE (Field1, Field2, etc) IS NULL