Does remove all data in .data after an update?

I have been trying to store information in a database after I update a project, but every time I update it, and when I say updating I mean it autostarting with new code, the data disappears. Is this a coding error or could this be part of

Project name: fertile-verse

The filesystem in Glitch is persistent. So data isn’t reset. .data isn’t copied on remix, so it’s empty in new projects but within your existing project it’s never cleared unless your code does it or you run a command from the console.