Community driven content discussing all aspects of software development from DevOps to design patterns. The SQL specification defines four transaction isolation levels, although a fifth transaction ...

Learn how to use Excel Power Query's extract and split column features to extract delimited strings into their components with this step-by-step tutorial. You might receive foreign data in the form of ...

For a long time, companies have been using relational databases (DB) to manage data. However, with the increasing use of ...

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and querying ...