The most important characteristic of an entity is its primary key, used to uniquely identify each entity instance.
<h3>What is primary key?</h3>
A column, or group of columns, known as a primary key in a table uniquely identifies each row of data. For instance, CustomerNo, which displays the ID numbers assigned to individual customers.
The primary key of a relational database, often called the primary keyword, is a key that is unique to each entry. It is a unique identification number, much like the ones on a driver's license, phone with an area code, or car (VIN). A relational database's primary key must always be distinct.
Thus, it is a primary key.
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Depending on the request, you could ask to talk to the requester face to face and calling or texting could work as well.
Answer:
Because they influence many people. They have many ways of affecting the way people see the government.
Explanation:
I hope this is right.
<span>The correct answer is option B Silent Spring. </span>The <span>book that brought the public's attention to damage caused by pollution in the early 1960 is the Silent Spring. It</span> was published in the early 1960s. The book explained the environmental damage caused by widespread use of pesticides. This book introduced the public to the idea that nature is vulnerable to human activity.
