Statistics on the use of languages ​​and databases

Question

Database

Greetings.

Has anyone come across links to publications (whitepapers) on the Internet:
- about the statistics of the use of languages ​​/ paradigms in different software sectors (specifically, the share of object-oriented languages ​​in enterprise systems is of interest)
- about the statistics of the use of databases (specifically, the share of relational databases is of interest)

Well, and other similar statistics on the topic of software development.

I would be grateful for any links.

Answer 1

www.stackoverflow.com/tags

Answer 2

… (accidentally pressed ctrl+enter. here's another one)
www.langpop.com/
www.tiobe.com/index.php/content/company/Home.html

Answer 3

github.com/languages
​​here you can also get some information