For the past fifty years, SQL has helped us understand, manipulate and use our data to our advantage.

SQL statements that are written into a high-level programming language such as C or Pascal. In a preprocessing stage, the SQL code is converted into function calls, which may be optimized to provide ...

Software that turns SQL commands written within a source program into the appropriate function calls for the database management system (DBMS) being used. After the SQL precompiler stage, the ...

SQL databases have constraints on data types and consistency. NoSQL does away with them for the sake of speed, flexibility, and scale.