I just need to issue some basic and simple INSERT/UPDATE/DELETE statements, nothing fancy. Are there any such tools? All the better if the tools are already packaged for Fedora.
Here is a good reference to various sql utilities.
Of these I've only used sqlshell and it did what you e.g. sql from the command line. It's java based so you will need a java 6 jre to use it. The jar file version has a gui for installation so you might want the zip version.
Henplus also looks like it would do what you want.
I've not seen any of them in the repos.