The primary key offers several characteristics, such as it uniquely identifies each row in the database, It always contains a value, it is never empty, and the value contains never change. To add ...

When this is the case, adding a surrogate key does seem ... The best way to protect your entire database, not just your primary key values, is to back it up regularly. Natural data isn’t any ...

Database developers have strong opinions on this facet of primary key design. This article settles ... could change the value’s format by adding or deleting characters or even completely ...

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.