Vendors now self-certify the compliance of their products.
Added regular expression matching, recursive queries (e.g.
SQL is a set-based, declarative programming language, not an imperative programming language like C or BASIC.
This closely related but separate standard is developed by the same committee. The aim is a unified access to typical database applications like text, pictures, data mining or spatial data.
This new stable release comes with several new features and design changes, as well as tidies up the overall software performance and handling.
Here’s a highlight of the stuff -within the update: New Mobile Version Theme.
In that model, a table is a set of tuples, while in SQL, tables and query results are lists of rows: the same row may occur multiple times, and the order of rows can be employed in queries (e.g. Critics argue that SQL should be replaced with a language that strictly returns to the original foundation: for example, see The Third Manifesto.
SQL is designed for a specific purpose: to query data contained in a relational database.