Tag: query
Introducing the Query Interface in Couchbase Mobile 2.0
The Couchbase Lite 2.0 Release, brings a plethora of new features and enhancements. We discussed one such enhancement, namely the new replication protocol between in an earlier blog post on Replication 2.0. In this blog post, we will introduce you...
Priya Rajagopal, Senior Director, Product Management
November 14, 2017
Create the Right Index, Get the Right Performance.
Introduction There are three things important in database systems: performance, performance, performance. For NoSQL database systems, there are three important things: performance at scale, performance at scale, performance at scale. Understanding the index options, creating the right index, with the...
Keshav Murthy
November 12, 2017
Optimize N1QL performance using request profiling
Monitoring uncovered the resource hog. Now what? Couchbase Server 4.5 introduced a mechanism to keep an eye on executing requests, so that slow performers could be highlighted. This DZone article covers the subject of N1QL monitoring in great detail, but...
Marco Greco, Software Architect, Couchbase
October 20, 2017
Learn N1QL in 10 Minutes: An Interactive Online Tutorial
N1QL is SQL for JSON. The goal of N1QL is to give developers and enterprises an expressive, powerful, and complete language for querying, transforming, and manipulating JSON data. The goal of N1QL is to give developers and enterprises an expressive,...
Keshav Murthy
September 7, 2017
How to transition from Equivalent Indexes to Index Replicas?
In the previous post, we saw the benefits of using index replicas over equivalent indexes. Let’s say you are on Couchbase Server 4.x and have the following 3 equivalent indexes spread across 3 nodes; and with Couchbase 5.0 Beta available,...
Venkat Subramanian, Product Manager
August 19, 2017
Bringing SQL to NoSQL – Rich, Declarative Querying for JSON
Couchbase Server is a document-oriented NoSQL database. Most NoSQL systems force you to sacrifice the rich querying capabilities of SQL in trade for the other benefits they offer. At Couchbase, we’ve developed the N1QL query language to solve this problem....
Hod Greeley, Developer Advocate, Couchbase
July 5, 2017
Announcing Couchbase Server 4.6 – What’s New and Improved
Couchbase delivers the Couchbase Data Platform that powers Web, Mobile, and IoT applications for digital businesses. With our newest release, Couchbase Server 4.6 provides the availability, scalability, performance, and security that enterprises require for their mission-critical applications. What’s New and...
Anil Kumar, Director Product Management, Couchbase Cloud-Native Database
February 16, 2017
Couchbase and the Document-Oriented NoSQL Database
As a developer advocate at Couchbase, I often travel around and meet people who either have no idea what NoSQL is, or more importantly what Couchbase is. For the people who are already familiar with NoSQL, Couchbase often gets compared...
Nic Raboy, Developer Advocate, Couchbase
February 7, 2017
Using N1QL Subquery Expressions to Query Over Nested Couchbase Documents
Back in Couchbase 4.0, N1QL was introduced as a way to give developers more flexibility when querying their NoSQL data stored within Couchbase Server. You could run SQL queries against JSON data and everything would be amazing. However, with N1QL...
Nic Raboy, Developer Advocate, Couchbase
January 18, 2017
New to NoSQL? Meet N1QL!
A few years ago NoSQL might have sounded like a alien monster, but given the advances in the technology and how modern web and mobile applications are storing and accessing data, it is and has become a critical part of...
Nic Raboy, Developer Advocate, Couchbase
January 10, 2017
Querying for Couchbase Documents in a NativeScript Angular Mobile Application
I recently wrote about using Couchbase as a key-value store in a NativeScript iOS and Android application built with Angular. In this example we saw how to collect user profile information to be saved or loaded from Couchbase on the...
Nic Raboy, Developer Advocate, Couchbase
January 9, 2017
Create a URL Shortener with Node.js and Couchbase using N1QL
With the boom of Twitter, SMS text messages, and other forms of short message interactions, there has been a boom in URL shortening services. For example, you can use TinyURL, Bitly, Owly, and so many others. The purpose here is...
Nic Raboy, Developer Advocate, Couchbase
December 5, 2016