## Copying the WMDB

Last time, there were directions for copying the WMDB. Let's do that together, but first:

* there are 4 tables in the WMDB: `person`, `movie`, `staff` and `credit`
* many of you had a `person` table in your contacts solution, so
* dropping your `person` table will probably fail (referential integrity) and so
* you'll have trouble copying the WMDB.

If you have a `person` table, you'll need to drop that first. (You can
always re-create it using your `Contacts.sql` file and other related files.)