Database developers often disagree about whether it’s better to use naturally occurring data or meaningless values as a table’s primary key. Technically, there is no right or wrong to this ...

A primary key is a field used to uniquely identify every record in the database. Sometime primary keys are obvious, for example a car license plate could be used to uniquely identify cars.

When building up a logical design, primary keys should be identified by the actual data points ... Generated keys can be a useful tool in creating logical database designs, but they can be easily over ...

Sir, – The Primary Online Database will help primary schools run ... The use of each child’s PPS number as the primary key compounds the risk, since this number will follow the child for ...