Flow failing when SQL query returns empty set

[DBean]

I've created a flow that fails when the SQL query returns an empty set.  I've found lots of mentions of similar issues, but none that include a solution.
This is a very simple flow - I'm searching a database for employees with a given start date, and sending an email to each of them.  Often, though, there are no employees with a particular start date, and the flow fails.

I've tried this:

And that doesn't work:

I found mentions of an "Empty" function, but when I try using that instead of "Null", I get this:

Any thoughts?  Thanks in advance!

[Paulie78 · Accepted solution]

The SQL connector returns a bunch of outputs, I would suggest you use something like:

not(empty(outputs('Execute_a_SQL_query_(V2)')?['body/resultsets/Table1']))

On the left side of your condition and the true expression on the right side. Make sure you use the expression true, not just type true in, like this:

[DBean]

@Paulie78 That did the trick - thanks!