Not sure what you are asking for.
To remove the query, select it, and press Delete in the key board.
About the previous question, if you ran the query, and update your data, and
you want to go back to the data you had before you ran the query then
1. I hope you have back up
2. Try and reverse the query, if you add records with certain criteria, then
try and delete with the same criteria. can't help you much here, without
knowing your data and whet you did, sorry.
