Dropping custom tables or custom columns
When you drop custom tables or custom columns in a database, the objects and associated data get permanently deleted from the database schema.
When you run dbverify or entity deployer scripts to deploy
table changes from an application-provided table or a custom table to your database, the changes
that are made to custom extensions are not automatically dropped. Instead, the drop SQL statements
are generated and saved to the <runtime>/repository/scripts/Eframe_Drops.lst
file. You can review the drop SQL statements and manually run them on your database.