Tag: couchbase
Primary Uses for Couchbase Primary Index.
A couple of frequently asked questions on N1QL for query service: When do we actually use a primary index? Why the index advisor does not recommend the primary index when that may the only choice? Read on… Couchbase is a...
Migrating Data from MongoDB to Couchbase
Migrating Data from MongoDB to Couchbase This article will guide you through a one-time migration of data from MongoDB to Couchbase. You will learn how to import data exported from MongoDB and do some basic transformation on those documents. All...
Synchronized Drawing Apps with Couchbase Mobile
Couchbase Mobile contains a robust and powerful embedded NoSQL database, called Couchbase Lite, that can be used within your iOS, Android, and Xamarin apps. The Couchbase Mobile stack also contains Sync Gateway. Sync Gateway enables secure data synchronization across Couchbase...
Tutorial : Using the Query API with a Prebuilt Couchbase Lite Database in an Android App
Couchbase Lite 2.x is a powerful NoSQL embedded data store for iOS, Android and .Net Mobile Platforms. In an earlier tutorial, we explored the basics of Database and Document CRUD operations using Couchbase Lite within your Android apps. In addition...
N1QL (Query) Basic Order of Execution.
Query syntax is limited. Queries are unlimited. Predicate pushdown, group by pushdown, offset pagination, keyset pagination, join optimization, search optimization, we’ve discussed it all. Still, it’s important to understand the default, simple — albeit slow — execution flow of the...
The Unreasonable Effectiveness of SQL in NoSQL Databases: A Comparative Study.
The business applications have requirements: take customer orders, deliver customer orders, track shipping, generate inventory report, end of the day/month/quarter business report, generate business dashboards and more. These requirements evolve slowly. They remain even when you choose a NoSQL database....
Tutorial: Getting Started with Couchbase Sync Gateway and Xamarin
Couchbase Sync Gateway is a key internet facing component of Couchbase Mobile stack that enables secure data synchronization across Couchbase Lite enabled clients. Couchbase Mobile 2.0 introduced a brand new websockets based replication protocol for data synchronization that is more...
Search and Rescue: 7 Reasons for N1QL (SQL) developers to use Search
People don’t want a four key index. They need a four-ms response. Ted Levitt Application development is demanding. Each application is trying to progress on behalf of the customer — searching for the right product or the right form, ordering,...
The Unreasonable Effectiveness of SQL
Two score and five years ago two young IBM researchers brought forth on databases, a new language, conceived in relational, dedicated to the proposition that data can be manipulated declaratively and easily. In the years since Don Chamberlin and Ramond...
N1QL: To Query or To Analyze?
Note: This recommendation note was written in collaboration with Till Westmann and Mike Carey, who lead the Couchbase analytics R&D. Couchbase’s Query and Analytics Services both support N1QL (SQL for JSON). A common question is: “Which service should run my...