I'm using query and import range to get from another sheet. Example
=query(IMPORTRANGE("KEY","Form Responses 1!A:L"), "select * where J = '2020-02-01' ")
I want the where part of the query to be driven from a cell on the current sheet, which contains a date. Something like
=query(IMPORTRANGE("KEY","Form Responses 1!A:L"), "select * where J = A1")
How can I use the value from a cell in the current sheet to drive the import query where?
You can use it on cell reference. You have to set the a1 notaion between: '"& A1 &"'
See this post: QUERY syntax using cell reference