Database is the Cloud feature for storing and reading application data used by your project.
A static landing page may not need a database. You usually need one when the app includes:
If the page only displays fixed content, start without a database and add one later.
Open Cloud, then Database. If the project does not have a database yet, use Initialize Database.
This asks the AI to prepare the database for the current project. Once it is enabled, the Database view can show tables and rows created by the app.
Describe the user action and the data that should be saved.
Good examples:
Before sharing an app that saves data, open Database and confirm the expected tables exist. Then test the app from the published URL and check whether new rows appear.