How to run code in wordpress to handle database

Question

Whenever I have to run code on the database, change posts, or terms or what have you, I am running it on a custom page template.

Since this has been working for me up to know, I didn't think about it much. But I need to delete a ton of terms now from a custom taxonomy and I can't do it on the test page very effectively. Meaning I get 504 gateway errors all the time, because the code takes too long to run, and deletes only a part of the terms.

So I am wondering, if I need to run custom code to change a lot of data, what is the most efficient method to use?

Answer 1

Many people use a plugin named Code Snippets for this. Otherwise it's often more efficient to use direct SQL Queries using phpMyAdmin for example.