How would you recommend editing the SQL database offline (without phpmyadmin)?

Question

MySQL

There is a site database dump in a .GZ archive with a .SQL file in it.
I need to delete offline some values ​​in the database and import the file back into the site.
What is the best program to do this?

Answer 1

text editor. You have a text dump.

Answer 2

Maybe awk or sed if the base is big? No output to stdout.
If small - just a text editor.