Please help with a JQL Query

Question

I have the following query that searches for two custom fields

project in ("Project") and ("Field1") and ("Field2") is not EMPTY

When I try the query below it works, I just can't seem to figure out how to search two custom fields. I tried with and without () also with and without "". I am trying to search for any fields that are not empty but have multiple fields to search. 
project in ("Project") and "Field1" is not EMPTY

Any suggestions?

Alsa Pedone · Answer

This worked for me.

(project in ("Project") and "Field1" is not EMPTY) OR (project in ("Project") and "Field2" is not EMPTY)

Nic Brough -Adaptavist- · Answer

The problem is that you've only got half a clause in your query:

* Project in () - selects for projects
* and
* ("Field1") - and field1 what?
* and
* ("Field2") is empty - checks if field 2 is empty

As you entered this into the JQL box, it would have told you that "and" was wrong after the end of that clause.

Jack Brickey · Answer

Use of quote for custom field is optional if the field is a single word but required if multiple words.