Advanced Topic 49 of 51 Databases
NewSQL and Distributed SQL
Databases combining SQL semantics with horizontal scale.
How it works
Systems like CockroachDB and Spanner give SQL and ACID transactions across nodes using consensus (Raft/Paxos) and synchronized clocks.
Where it is used
Global, strongly consistent applications.
Common pitfall
Cross-region latency is bounded by speed of light.
Where it fits in the course
NewSQL and Distributed SQL is topic 49 of 51 in Databases, rated Advanced. It follows LSM Trees. The next topic is Time-Series Databases.
Practice and explore
- Open the interactive lesson, with a mini quiz.
- Take the Databases quiz.
How to study this topic
- Read the explanation above and restate the definition in your own words.
- Open the interactive lesson and answer its mini quiz.
- Read the common pitfall, then write a short example that avoids it.
- Check your understanding in the Databases quiz, and revisit the topic if you miss a question.
Frequently asked questions
What is NewSQL and Distributed SQL?
Databases combining SQL semantics with horizontal scale. It belongs to Databases and is an advanced-level topic.
Where do people use NewSQL and Distributed SQL?
Global, strongly consistent applications.
What is the most common mistake with NewSQL and Distributed SQL?
Cross-region latency is bounded by speed of light.
What should I learn before this topic?
Start with LSM Trees, the topic just before it in Databases.
How can I practice it?
Answer the mini quiz in the interactive lesson, then take the Databases quiz.
Is NewSQL and Distributed SQL hard to learn?
It is an Advanced topic. Expect to read the explanation more than once and to connect it with earlier topics. Working through a small example by hand helps most.
How long does it take to learn NewSQL and Distributed SQL?
Most learners can read the explanation and finish the interactive lesson in under an hour. Fluency comes from applying the idea, so plan a few short practice sessions with the quiz.
Which topics are related to NewSQL and Distributed SQL?
LSM Trees, Time-Series Databases, OLTP vs OLAP are closely connected. The full list is in the related topics section of this page.
What should I study after NewSQL and Distributed SQL?
Continue with Time-Series Databases, the next topic in Databases.
Related topics
- LSM Trees (Databases)
- Time-Series Databases (Databases)
- OLTP vs OLAP (Databases)
- Vector Databases (Databases)
- What is a Distributed System (Distributed Systems & Cloud)
- Distributed Hash Tables (Distributed Systems & Cloud)
- Distributed File Systems (Distributed Systems & Cloud)