[petcat]

sqlite is great for the contacts app on your phone, but that's it.

Hipp even said that it is not a replacement for a real multi-user, concurrent RDMS. Its primary competitor is "fsync".

[Rohansi]

SQLite is able to handle tens of thousands of write transactions per second on modern hardware. That is probably similar to or more than your real, multi-user, concurrent RDBMS.

[andersmurphy]

Hundreds of thousands*