Backup and Recover
Download and Uploading the Database
To create a backup of your database, you can use the icml tool. The download command lets you save the canister’s database to your local drive.
Later, you can restore it by uploading the database back with the upload command.
By downloading and uploading the database it should be also possible to move the database from one canister to another.
Before running download or upload, the canister's database connection must be closed. This ensures that the cached pages of the SQLite engine do not conflict with the database written on disk and your database does not get corrupted.
Recovering from a Canister Snapshot
If a canister becomes unusable and its functions cannot be called, but you can still create and download a snapshot, icml can recover the SQLite database directly from the stable memory snapshot file.