Not much. In fact, SQL is a powerful language for gaining insights from your data. The concept of a view serves as an efficient, dynamic mechanism to define how insights are derived without the need for copying or moving data.
However, there are some issues with SQL. While it is based on Relational Algebra, its implementation is not always sound.
By adopting a different perspective on SQL, it seamlessly intertwines with Relational Algebra, allowing you to write classic SQL while simultaneously benefiting from the simplicity and insight of Relational Algebra.
This article provides a concise technical overview of how this is implemented in Colbert’s SQL, an integral component of this Relational Database Management System (RDBMS).