All about SQL, tutorials, lists, cheat sheets, code samples

MongoDB and PostgreSQL present us with two rich but different paradigms for database management. In this Bytescout developer intro, we will compare the features of these two paradigms in depth. To facilitate the best design decision for your project, we will reveal the nuances and distinctions of both Mongo and Postgre. Which DB is best for your enterprise? Relational databases, with SQL queries being the most widely used, constantly evolve with exciting new features. PostgreSQL [...]

The point of progressive web apps is to make optimal use of the ever-evolving capabilities of browsers. One such advanced browser capability is to store data in a browser for offline app functionality. Browsers now use several NoSQL and NewSQL technologies for this purpose. Apache Ignite, and Google Spanner DB are popular NewSQL DBs. MySQL Cluster is an optimized and highly scalable new SQL interface. Offline DB management is the focus of our ultimate tutorial [...]

In this topic, we discuss SQL Server Constraints. We first discuss the theory behind them, i.e. the concepts of Data Integrity and Referential Integrity, and Database Normalization. Then we will learn about the types of constraints in SQL with examples, its rules, and syntax. In particular, we will check table constraints. You can learn SQL queries in another article. What are the constraints in SQL? SQL constraints are programmatic constructs that alter the Server’s behavior while [...]

Here’s the content of the article: SQL DB Introduction How to Build a Basic SQL Database Fast Way to Create a SQL Database Real-Time Data Streaming SQL The Core of Kafka: Transaction Logs Data Streams as SQL Tables The Kafka KSQL EDGE SQL DB Introduction Imagine a real-time transportation booking network of drivers and passengers operating in a frenetic, densely populated Asian city like Phnom Penh. Thousands of passenger apps are simultaneously uploading and downloading [...]

Continuing our exciting journey through today’s cutting-edge machine learning techniques and SQL methods, we naturally want to develop a practical working knowledge of how to bring all the best predictive technology together in this tutorial on SQL Server Machine Learning Services. Most importantly, we want to build real-world applications. Now it’s more realistic than ever to deploy SQL/Python apps. With this awesome platform we can run Python and R code from T-SQL, and as you [...]

Amazon Web Services (AWS) is one of the largest and most well-known on-demand cloud computing platforms available. Part of the reason for their popularity is that they have an easily scalable set of web hosting platforms, including storage, networking, database services, among many others. Typically these services are not visible to end-users but can provide a framework for hosting dynamic processing tools that you need for your site, and these services can be connected to many [...]

Knowing SQL can help you improve your skills as a developer. Learn what it is, see some basic commands and examples in this article: What Is SQL? What Is MySQL? How to Get Started Installing WAMP Installing MySQL Workbench Setting Up Sample Data How to See Data With the SELECT Statement How to Filter Data using the WHERE Clause Ordering Your Results Adding New Data with the INSERT Statement Changing Existing Data Using the UPDATE [...]

MySQL server is one of the most widely used relational database management systems. It is estimated that over 100 million copies of MySQL server have been downloaded worldwide by individuals, corporate companies and small scale organizations. MySQL is an open-source and freeware database server that provides numerous advanced database functionalities. Google, Yahoo, Facebook, Nokia, Wikipedia, and several famous organizations have employed MySQL for data processing. Here's the content of the article: MySQL Server History MySQL [...]

Postgre SQL or simply called Postgres is a type of object-relational database server with open source user license. Postgres database server has evolved through more than 15 years of development and maintenance and is considered one of the most reliable databases with extensive focus on data reliability and correctness. PostgreSQL has the functionality and features that are attractive to developers. PostgreSQL has transaction processing functionality which maintains the integrity of a system with atomicity, consistency, [...]