SQL, which stands for Structured Query Language, is a standardized programming language used for managing and manipulating relational databases. It allows users to interact with databases, perform ...

If you are a SQL programmer, learning recursive SQL techniques can be a boon to your productivity. A recursive query is one that refers to itself. I think the best way to quickly grasp the concept of ...

A question asked about data contained in two or more tables in a relational database. The relational query must specify the tables required and what the condition is that links them; for example, ...