Update free-programming-books-langs.md

[yanguwan]

trafficstars

Added a new section NewSQL and added the first course in the section

What does this PR do?

Add resource(s) | Remove resource(s) | Add info | Improve repo

For resources

Description

Why is this valuable (or not)?

How do we know it's really free?

For book lists, is it a book? For course lists, is it a course? etc.

Checklist:

• [x ] Read our contributing guidelines
• [x ] Search for duplicates.
• [x ] Include author(s) and platform where appropriate.
• [ x] Put lists in alphabetical order, correct spacing.
• [x ] Add needed indications (PDF, access notes, under construction)

Follow-up

• Check the status of GitHub Actions and resolve any reported warnings!

[LuigiImVector]

We try to avoid creating a new section for a single resource whenever possible, maybe it could be placed on "NoSql"?

NewSQL is a class of relational database management systems that seek to provide the scalability of NoSQL systems for online transaction processing (OLTP) workloads while maintaining the ACID guarantees of a traditional database system.

[yanguwan]

Usually, we do not think NewSQL is kind of NoSQL. NewSQL is a big progress that covers both of NoSQL and traditional SQL.

[eshellman]

We can add the section, but note we need to add it to the index as well. We have no books yet on Aurora, Couchbase, or the other NewSQL databases.