Using Regex to extract table names from a file containing SQL queries

Question

I\'ve a text file containing large number of queries. I want to get all the distinct tables used in the entire file in all the queries. The table name can come after a \'fro

Answer 1

Something like this maybe:

/(from|join)\s+(\w*\.)*(?\w+)/

It won't match escaped table names though, and you need to make the regex evaluation case-insensitive.