To enforce referential integrity, the database can return an error instead of doing the requested action or do the requested action and do the related changes to the related tables
Thus the answer is either a or b.
Explanation:
When the given data base in a table is valid and if it is consistent then it is called as referential integrity and it also refers to the consistency within the relationship. This type of database is much important because it will keep us introducing to the errors in the databases and it also checks if the reference from one table is equal to the other table.
The main function is to prevent the users from entering the wrong and inconsistent data. So in referential integrity the database will return the error instead of doing the required action or it can do the related changes to the related tables.
Explanation:
This poem describes the action-packed night of April 18, 1775, the famous ride of Paul Revere. It starts in Boston, where Paul and a friend are talking about the British army. They think the soldiers are going to leave Boston that night, but they aren't sure whether they will go by land or sea.
Answer:Developing countries are different from least developed ones as developing countries are forwarding in the path of development by developing each and every sectors,in the contrary;least developed countries don't even try to carry out developmental works.
Explanation:
