SQL

1. A ___________ is one or more attributes that allow us to uniquely identify a tuple in a relation, from which ________________ are identified and finally a ______________ chosen.

2. The new specialized databases that were developed for data analysis: (single choice)

Are usually small and optimized for use by mobile devices

Often use novel distributed-data storage

Require high end specialized hardware

Have been championed by mostly tech giants of the 1980s and 1990s such as Microsoft, Oracle an Apple