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OrientDB is an Open Source NoSQL Database Management System, which contains the features of traditional DBMS along with the new features of both Document and Graph DBMS. It is written in Java. It can store 220,000 records per second. OrientDB installation file is available in two editions : Community Edition Enterprise Edition The main feature of OrientDB is to support multi-model objects, it supports different models like Document, Graph, Key/Value and Real Object. It contains a separate API to support all these four models. Document Model OrientDB uses the concepts such as classes, clusters, and link for storing, grouping, and link for storing, grouping, and analyzing the documents. Comparison between relational model, document model, and OrientDB document model. Relational Model Document Model OrientDB Document Model Table Collection Class or Cluster Row Document Document C...

Introduction to EclEmma EclEmma is a free Java code coverage tool for Eclipse, available under the Eclipse Public License. It brings code coverage analysis directly into the Eclipse workbench:    Fast develop/test cycle: Launches from within the workbench like Junit test runs can directly be analyzed for code coverage. Rich coverage analysis: Coverage result are immediately summarized. Non-invasive: EclEmma does not require modifying your projects or performing any other setup. EclEmma is based on the JaCoCo code coverage library. The Eclipse integration has its focus on supporting the individual developer in an highly interactive way. Originally EclEmma was inspired by and technically based on the great EMMA library developed by Vlad Roubtsov.   Download and Configuration Details Users machine should have Eclipse IDE installed, if not follow the below link to download eclipse.   https://www.eclipse.org/downloads/ From your Eclipse...

General Introduction JavaScript is a programming language commonly used in web development. It was originally developed by Netscape as a means to add dynamic and interactive elements to websites. JavaScript is a client-side scripting language, which means the source code is processed by the client's web browser rather than on the web server. This means JavaScript functions can run after a webpage has loaded without communicating with the server. For example, a JavaScript function may check a web form before it is submitted to make sure all the required fields have been filled out. The JavaScript code can produce an error message before any information is actually transmitted to the server. JavaScript Versions There have been several formal versions of JavaScript. 1.0 Netscape 2 1.1 Netscape 3 and Explorer 3 1.2 Early Version 4 browsers 1.3 Early Version 4 browsers and Version 5 browsers ...