Tell us about the several types of databases: Internal, check, value, and transparent.

• Internal 

It is the common data type object, and its only existence is at the time that the program is being executed.

• Check 

Examining the table will include verifying each field individually.

• Value 

Checking of the value table will take place at the domain level.

• Transparent 

The transparent database will have the same architecture and columns in both the dictionary and the database.