But can a database handle more than 5 transactions per second?

Well done, beautifully well placed comment.

If you think modern block chain is still stuck at 5 tps, then you have not been paying attention.

So 7?

Even ETH is 25. This is a handy article in that it lists a bunch of TPS's of different cryptos, but its also a shill article for Aleph, so ignore that. As you would see, TPS ranges from 7 (BTC) to 29,000 TPS (Solana). This also ignores Layer 2 solutions (e.g. Polygon for Ethereum) which vastly increases TPS. https://alephzero.org/blog/what-is-the-fastest-blockchain-an...

Try 50k

HN is pretty reflexive in their dislike of pro-crypto arguments/evidence.

Like I said, reflexive downvoting.

This brings up a good question. How do you migrate a blockchain from Azure to somewhere else?

You rebuild it, same with any public cloud that isn't using an open standard. That is why people should only invest enough effort into a cloud to deploy an agnostic solution like Kubernetes.

Or use AWS where services aren't switched off, they just no longer get promoted, and then eventually you cannot start new things on them, but can still run your existing stuff for the next 10 years.