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, maps, ...

Discover how base periods serve as benchmarks to analyze variable changes over time. Learn their role in economics and finance, and see practical examples.

Graphs turn data into visual images that make the information easier to see and interpret. But another way to share data is by turning the numbers into sound, for example to find new patterns in the ...