What is multi-threaded programming and SQLite?

Question

There are tons of internships I see regularly stating these two terms in "requirements" section. Curious to know how their implementation occurs in code and or what are they stands for? Are they really required for a programmer to learn?

Answer 1

Multithreading, the concept of doing multiple calulations "simultaneously", check the code here:
https://code.sololearn.com/cPyfXZGRo5sr/?ref=app
and in this one you can't really predict the order of the outcomes:
https://code.sololearn.com/coJw4aMK1ZvH/?ref=app

SQLite - the light-weight flavor of SQL with strong API for querying databases:
https://code.sololearn.com/csyhsIovmZJ3/?ref=app

Answer 2

Got it. Thanks Kuba & Martin :)