Data dump
Techopedia explains Database Dump
Professionals often point out that a database dump typically uses Structured Query Language (SQL) and may be formatted as a collection of SQL statements. The database dump usually reveals a detailed record of tables in the database.
Users can take advantage of provided utilities to perform a database dump. For example, in MySQL, the mySQLdump utility will produce this result and can send the data to a remote server if necessary. The use of this utility promotes the database manager’s ability to back up and restore a database very efficiently with a few simple commands. Users can also back up multiple databases.
https://www.techopedia.com/definition/23340/database-dump
I’ve taken a hard drive out of a few crashed laptops. If I wanted to get rid of some thing on it, I’d just put it in my wood burner. It looks about the same as an old small floppy disk. Ashes to ashes.