Hello,
What is the best way to compare 2 columns in 2 different tables?
For instance, both tables have an email column. Table1 has all the
email addresses, while Table2 holds only the email addresses that
have replied or completed a form. I want to compare the two and
return a list of email addresses that haven't replied or completed a
form yet.
This is what I have, but I'm not sure if it is the proper way:
SELECT Distinct [EmailAddress]
FROM [db].[dbo].[Table1], [db].[dbo].[Table2]
where [EmailAddress] not like [Email]
GO
Note: Table1 has the column EmailAddress and Table2 has the column
Email.
It seems to work, but for some reason, I would still get some email
addresses returned even though a response was received from them.
Any help is greatly appreciated.
Thanks!
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