Added tip about exlcuding the changelog when exporting the database

docs/administration/replicating-netbox.md

@@ -7,10 +7,18 @@ NetBox uses [PostgreSQL](https://www.postgresql.org/) for its database, so gener
 
 ## Export the Database
 
+Use the `pg_dump` utility to export the entire database to a file:
+
 ```no-highlight
 pg_dump netbox > netbox.sql
 ```
 
+When replicating a production database for development purposes, you may find it convenient to exclude changelog data, which can easily account for the bulk of a database's size. To do this, exclude the `extras_objectchange` table data from the export. The table will still be included in the output file, but will not be populated with any data.
+
+```no-highlight
+pg_dump --exclude-table-data=extras_objectchange netbox > netbox.sql
+```
+
 ## Load an Exported Database
 
 !!! warning