Apache Cassandra is a data management system designed and developed to handle huge amounts of data across multiple servers. It is open source, meaning its source code is freely available for anyone to study, modify and use.
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Category: Development
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What is MongoDB?
MongoDB, an open-source document database written in C++, is classified as a NoSQL database. Because it avoids the traditional table-based relational database structure in favor of JSON-like documents with dynamic schemas (MongoDB calls the format BSON), it facilitates quick-and-easy data integration in various applications.
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What is NoSQL?
The term “database” was long synonymous with SQL, and for a while there seemed to be no viable alternative. Recently, however, the realm of data storage has welcomed a new option: NoSQL. This article offers you a brief overview of what NoSQL is and when it may be applied.
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MongoDB in a minute
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Free Online JSON Visual Editor
JSONMate is yet another free online JSON visual editor with a modern appearance that allows users to edit, query, and visualize data in JSON format (in case you don’t know, JSON is a human-readable language that is usually used to communicate data between an online web application and a server). Let’s see what is unique about JSONMate.
Being the biggest scraper Google itself doesn’t like when somebody scrapes it. This makes life of google scrapers difficult.
In this post I offer you several hints on how to scrape Google in a safe way (if you still decided to do this).
LinkedIn API doesn’t allow you to publish into groups if you are not their administrator. That was done in order to eliminate spamming, but if you are a member of several groups of a similar topic and you want to share some interesting information with all of those groups, you have to do it manually group by group and eventually it becomes tedious. In this post I’ll show you a simple way to automate this process in C# using Selenium WebDriver.
I have already written several articles on how to use Selenium WebDriver for web scraping and all those examples were for Windows. But what about if you want to run your WebDriver-based scraper somewhere on a headless Linux server? For example on a Virtual Private Server with SSH-only access. Here I will show you how to do it in several simple steps.
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An Example of Captcha Solver in Java
Recently I published an article on how to solve captcha in C# using DeathByCaptcha service, and I promised to offer you an example in other languages as well. In this post I’ll offer a Java project that does the same thing.
If you develop an application for web scraping then it would be really nice to upgrade it with automatic captcha recognition. “Bypass CAPTCHA” service allows you to do this very easily since its focus is on use in third-party software. In this post I’ll show you how easy it is to extend your scraper using this service.