sql: DELETE + INSERT vs UPDATE + INSERT

Question

A similar question has been asked, but since it always depends, I\'m asking for my specific situation separately.

I have a web-site page that shows some data that co

Answer 1

TRUNCATE will be faster than delete, so if you need to empty a table do that instead

You didn't specify your RDBMS vendor but some of them also have MERGE/UPSERT commands This enables you do update the table if the data exists and insert if it doesn't