Answer:
The correct answer is Option A (Referential integrity)
Explanation:
When a relational database table is in first normal form, that means it has no repeating fields or groups of fields, and hence all rows have the same columns, while if a relational database table is in second normal form, it implies that every non-key field is functionally dependent on the primary key. If can be in the third normal form if no non-key field is functionally dependent on any other non-key field.
A relational database on its own is a universal approved database model whose data is stored in tables divided into records and fields that serve as an information unit that organizes data points for easy access.
In the relational database, foreign keys are being checked to reference the primary key and enforce referential integrity so as to ensure that the foreign key must have a matching primary key. It means the reference from a row in one table to another table must be valid. Referential integrity concerns the concept of a foreign key normally enforced by the database management system.
Answer:
Excessive utilization of digital instant messaging could perhaps lead to numerous mental health conditions.
Explanation:
- The massive pressure just to preserve a privileged lifestyle the same as peer group and other such influencers.
- Cyberbullying would also be a key component of the social mainstream press. This might cause stress.
Yes, researchers undoubtedly need to worry about who becomes familiar with the internet. There's a whole number of news items living with the effects of over-using social networking sites. There seemed to be headlines that a teen must have been strongly affected by someone with a man as well as ransacked with real money by encouraging them to stay married to her.
Answer: An application software is a type of software that the user interacts with, while a system software is a type of software that the system interacts with.
Hope this helped you :)
The process or activity of writing computer programs.
