This is about identifiers in a record referring to other records.
You can have many to one, one to one, many to many.
E.g., if you have two tables, Authors and Books, then a book record could have a reference to an author record. Since an author can write many books, this would be a many-to-one relationship.
Answer:
For the first question I think it is chains
The second question.
The woman is suspicious at hotel doors have numbers so how could he have been confused
Explanation:
The different types<span> of </span>databases<span> include operational </span>databases<span>, end-user </span>databases<span>, distributed </span>databases<span>, analytical </span>databases<span>, relational </span>databases<span>, hierarchical </span>databases<span> and </span>database<span> models.
Source Bing</span>
Answer:
Functions of an operating system. An operating system provides three essential capabilities: It offers a UI through a CLI or GUI; it launches and manages the application execution; and it identifies and exposes system hardware resources to those applications -- typically, through a standardized API.
Explanation:
Advantages: Nuclear energy has the ability to produce electricity without greenhouse gas emissions. It produces electricity without pollution
Disadvantages: The nuclear weapons threats. Some reactors produce plutonium which can be used to make nuclear weapons
