Do SaaS founders know SQL? My app will fail, if the majority Dont

Don't panic. You might find the video linked below from Patrick Campbell interesting. He talks about constantly freaking out as founder, and getting the awareness to overcome this.

https://www.youtube.com/watch?v=56_9y2pMwhs

I checked your profile and it seems like you are building a tool for founders which requires SQL knowledge since it is related to data analytics etc, correct ? I think your Ask HN title is a bit confusing so I wanted to clarify first.

If my understanding is correct, I would say no problem since any SAAS must have at least a senior technical person whether they are founder/co-founder or not. I run a SAAS and I am definitely decent with SQL myself even though I am not the CTO who is obviously better than me at everything technical.

Technically there is no need to understand code at all, depending on if you have a cofounder or use nocode tools.