Learn DB

About Learn DB Android App

Apache Presto is a distributed parallel query execution engine, optimized for low latency and interactive query analysis. Presto runs queries easily and scales without down time even from gigabytes to petabytes.

DocumentDB is Microsoft's newest NoSQL document database platform that runs on Azure. In this tutorial, we will learn all about querying documents using the special version of SQL supported by DocumentDB.

DocumentDB is Microsoft's newest NoSQL document database, however, when we say NoSQL document database, what precisely do we mean by NoSQL, and document database?

SQL means Structured Query Language which is a traditional query language of relational databases. SQL is often equated with relational databases.

It is really more helpful to think of a NoSQL database as a non-relational database, so NoSQL really means non-relational.

There are different types of NoSQL databases which include key value stores such as −

Azure Table Storage
Column-based stores, like Cassandra
Graph databases, like NEO4
Document databases, like MongoDB and Azure DocumentDB

DocumentDB - Introduction

In this chapter, we will briefly discuss the major concepts around NoSQL and document databases. We will also have a quick overview of DocumentDB.

NoSQL Document Database

DocumentDB is Microsoft's newest NoSQL document database, so when you say NoSQL document database then, what precisely do we mean by NoSQL, and document database?

SQL means Structured Query Language which is traditional query language of relational databases. SQL is often equated with relational databases.

It's really more helpful to think of a NoSQL database as a non-relational database, so NoSQL really means non-relational.

There are different types of NoSQL databases which include key value stores such as −

Azure Table Storage.
Column-based stores like Cassandra.
Graph databases like NEO4.
Document databases like MongoDB and Azure DocumentDB.