Neo4j Installation steps
1. Install Neo4j Go to http://neo4j.com/download/ and download the Community edition. This should download Neo4j 2.3 Based on your download type, follow the appropriate instructions. Linux/Mac/Windows zip 1. Untar/unzip the download 2. Run command: bin/neo4j start for Linux/Mac or just…
3 Essential MySQL Interview Questions
Consider the following table definition in a MySQL database: CREATE TABLE example ( id INT NOT NULL, text1 VARCHAR(32) NOT NULL, text2 VARCHAR(32) NOT NULL DEFAULT ‘foo’ ); What will be the result of the two INSERT statements below if…
KDB Installation
Download Link : http://kx.com/software-download.php Installation instructions : http://code.kx.com/wiki/Tutorials/Installation?_ga=1.228375069.1038810810.1445944746 Go to http://kx.com/software-download.php. Click through the form and proceed to download. Choose the latest version and click ZIP. Unzip the downloaded file (linux.zip), and move the extracted q directory into your home…
[MongoDB]: When Arbiter required for Replica Set
MongoDB replica sets provide a number of features that most MongoDB users are going to want to leverage. Best of all they are relatively easy to setup. However, first timers often hesitate when it comes to the role of arbiters….
6 Rules of Thumb for MongoDB Schema Design
When designing a MongoDB schema, you need to start with a question that you’d never consider when using SQL: what is the cardinality of the relationship? Put less formally: you need to characterize your “One-to-N” relationship with a bit more…
[Couchbase]: Free on-demand NoSQL trainings
Couchbase is pleased to announce free on-demand training for developers, admins, and architects. And their online courses consist of lessons, quizzes, coding labs, and other resources that get you up to speed quickly on NoSQL concepts, Couchbase Server 4.0 architecture, and…
MariaDB Recommendations document
dbversity_MariaDB_db_recommendations_summary_document Product Description: MariaDB is a drop-in replacement for MySQL. MariaDB strives to be the logical choice for database professionals looking for a robust, scalable, and reliable SQL server. To accomplish this, the MariaDB Foundation work closely and cooperatively…
[MongoDB]: Storing Comments
This document outlines the basic patterns for storing user-submitted comments in a content management system (CMS.) Overview MongoDB provides a number of different approaches for storing data like users-comments on content from a CMS. There is no correct implementation, but…