## Keeping a Database Updated

Once you have successfully parsed your code for the first time, keeping the database up to date is simple:

    undc -db myproject.udc -refresh

This command checks each file previously parsed into the repository to see if it has changed. If it has changed then it will re-parse it, and any files that depend on it (and so on) until the database is fully refreshed.

Use this feature to keep your database up to date while keeping your parsing to a minimum.

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