Databases - unit 2 crossword quiz

A U_________ identifier makes each

row in an entity one of a kind.

In order to improve system operation,

administrators usually do some

P________ tuning activities.

A type of data model which includes

all entities, their attributes and

relationships between those entities,

with respect to business requirements. (L)

An object which represents data related

to the same topic. (E)

A modelling language with rich notation

and set of diagrams available for

various purposes. (U)

A type of DBMS which stores the entire

database in RAM to improve speed of

data retrieval. (I)

A copy of data from database that can

be used to reconstruct it.

A single row of data from a table. (T)

A request for information from

a database. (Q)

A synonym to simultaneous. (C)