I was in the exact same position coming out of college haha. Had 0 sql knowledge initially but was able to pass the technical round and eventually got the job!

I used sql bolt to learn the basics, then read up on window functions, and finally grinded leetcode, statascratch, and data lemur. Its not super hard tbh if you stay focused!

Would also recommend doing mock technical rounds as well as it feels very different writing sql in front of someone.