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You might want millions of project rows in your local database, for example,
in order to compare relative query performance, or to reproduce a bug. You could
-do this by hand with SQL commands, but since you have ActiveRecord models, you
-might find using these gems more convenient:
+do this by hand with SQL commands or using [Mass Inserting Rails
+Models](mass_insert.md) functionality.
+Assuming you are working with ActiveRecord models, you might also find these links helpful:
+
+- [Insert records in batches](insert_into_tables_in_batches.md)
- [BulkInsert gem](https://github.com/jamis/bulk_insert)
- [ActiveRecord::PgGenerateSeries gem](https://github.com/ryu39/active_record-pg_generate_series)