But just specifying a numeric data type puts the onus on the DBMS, where it should be, to assure that the data is numeric only. Choosing the wrong data type can impact performance, too. Relational ...

Any data that does not fall into the traditional field structure (alpha, numeric, dates) of a relational DBMS. Examples of complex data types are bills of materials, word processing documents ...

Data has become a fundamental component of our lives. Every decision we make online is recorded and stored for future use. The more we do online, the more data there is on our habits and preferences, ...