Data modeling advantage: The vendor offers a robust modeling tool that delivers visualizations of physical, conceptual and logical data structures. The platform can generate SQL scripts, thus ...

Logical implies a higher view than the physical. Users relate to data logically by data element name; however, the actual fields of data are physically located in sectors on a disk.

A logical database can stretch over multiple physical hard disks and information files. The data storage unit is still a single database for information retrieval purposes.

Businesses are strongly advised to re-evaluate their approach to access control Dubai: Today’s employees are increasingly distributed and mobile, requiring many businesses to take a new look at ...

This, or these, attribute(s) are the candidate key(s) for the structure. The candidate key is also known as the primary key, or if a structure has multiple candidate keys, then one of them is ...