Traditionally Programmers used ODBC, JDBC, ADO etc to access database. Developers need to write SQL queries, process the result set and convert the data in the form of objects (Data model). I think most programmers would typically write a function to convert the object to query and result set to object. To overcome these difficulties, ORM provides a mechanism to directly use objects and interact with the database.

Advantages and Disadvantages of using Hibernate like ORM libraries

What if you could reliably run PHP without Nginx or Apache, but also without relying on its internal server? What if you could do async operations in PHP with true multi threading, fully taking advantage of multi core processors without hacks or a jungle of callbacks? What if you had drag and drop installation support for your PHAR packaged web apps in an environment identical to its production counterpart? Welcome to appserver.io – the worlds first open source application server for PHP.

Appserver.io – The First Multithreaded Application Server for PHP written in PHP

Bitcoin is an open source digital currency which could be transferred in a P2P payment network. It is decentralized and it is not controlled by any central authority or banks. It is transferred from person to person and no authority will be aware of your transaction. Its quite different from PayPal or Banks.

How Bitcoin works? A simple introduction.

Recently you might have seen many news that big organization like Redhat, Fedora, Wikipedia switched their database from MySQL. Now Google also going to join them. Why everyone want to move out of MySQL? It is once a popular and stable software. What is the reason behind and what are the possible alternatives.

Is it good time to switch from MySQL and choose some other database?

People who have taken programming as their career has to do coding for almost 30 years. Will they always get an opportunity to do complex tasks or to write project from scratch? The answer is NO. Sometimes they may get but not always. What should they do?

Why Experienced Programmers Should Contribute to Open Source

I could see many many students posting this question in many forums, I want to contribute to open source but How to contribute? There are many ways to do that. I have listed a few and I hope it might be useful.

How to contribute to open source

PrestaShop is an Open Source eCommerce Solution. It comes complete with over 310 features that have been carefully developed to assist business owners in increasing sales with virtually little effort. It is being used in more than 150,000 online stores.

PrestaShop - A feature rich Open Source eCommerce solution

What the benefit will i get, if i contribute to Open Source? This is the frequently asked question by many people. I just want to pen down the benefits which i know and i hope you will agree with it.

Benefits in contributing to Open Source

Open Source projects requires sponsors to fund their project. Few got good funding but few others are struggling to continue their project. A contributor, who does full time work in open source project requires funding to take care his needs. He has to be paid and he cannot do it for free. For those who don't get fund, check out this crowdfunding sites, these are exclusively for open source projects. Join these, get some fund and continue your dream.

Crowdfunding for Open Source Projects

You may require GBs of data to do performance or load testing. How your app behaves when there is loads of data.  You need to know the capacity of your application. This is the frequently asked question from the sales team "The customer is having 100GB of data and he wants to know whether our product will handle this? If so how much RAM / Disk storage required?". This article has pointers to the large data corpus.

10 sites to get the large data set or data corpus for free

Solr is a search engine built on top of Lucene. It supports REST interface and has lot of built-in capabilities. Solr package has Admin UI interface which has support to perform query and even delete the contents of the index. If you are using Solr in production then you may need to restrict access. I saw couple of questions in the group related to this topic. Thought to write an article explaining few tips to restrict the user access to Solr admin UI.

Restrict Solr Admin Access

Lucene is most powerful and widely used Search engine. Here is the list of 7 search engines which is built on top of Lucene. You could imagine how powerful they are.

8 Best Open Source Searchengines built on top of Lucene

SEO friendly URL is recommended for any website which wants to be indexed and wants its presence in search results. Searchengine mostly index the static URL. It will avoid the URL which has lot of query strings. Almost all websites generate content dynamically then how could the URL be static. That is the job of the programmer.

How to create SEO friendly url

Exploring the Depths of the Ethereum Ecosystem

Navigating the Ethereum Ecosystem: A Beginner's Guide to Blockchain

Blockchain is buzzing across the world with its endless potential for disrupting a broad spectrum of the industries beyond the storage and transferring the values. Cryptocurrencies are revolutionizing variant industries and plenty of people talk about it with and their potential. Blockchain technology may have been made for bitcoins but it has immense potential for making the transactions secure and exciting. The technology is not ubiquitous but it already seems to be disrupting a huge number of the highly centralized industries that demonstrate practical use cases for changing the way businesses are done.

Blockchain Technology Will Revolutionize These Five Industries

OpenSSL is a general purpose cryptographty toolkit that provides an open source implementation of Transport Layer Security(TLS) and Secure Socket Layer(SSL) protocols. It is written in C,assembly and Perl language but wrappers are available in all languages. This article explains about OpenSSL commands.

Holistic usage guide for OpenSSL

Mkcert is go-lang project, which is super easy tool to setup certificate authority without any configuration. Using certificates are inevitable these days, data should be transferred in a secure communication channel. Buying a certificate is expensive and mostly companies buy certificates only for production systems. In Dev setup, if we use self-signed certificate then there will be trust errors. mkcert automatically creates and installs a local CA in the system root store, and generates locally-trusted certificates.

mkcert - No config certificate authority tool

GlobalSign is one of the Internet’s original trust service providers (technically known as Certificate Authorities). They have issued millions of trusted Digital Certificates to people, servers and mobile devices for Public Key Infrastructure (PKI) enabled solutions and applications. They are now giving certificates for free for open source projects.

GlobalSign - Free Certificate for Open Source Projects

Mastering API Integration in React Native with Expo: A Comprehensive Guide

React Native Navigation and Routing with Expo: A Comprehensive Guide

In this detailed guide, we will walk you through the process of building a weather app in React Native using Expo. React Native is a popular framework for developing cross-platform mobile applications, and Expo simplifies the development process.

Building a Weather App in React Native with Expo: A Step-by-Step Guide

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