Answer:
I think the above information will help you a lot.
Have a nice day.
Answer:
A computer is an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program. It receives data through an input unit based on the instructions it is given and after it processes the data, it sends it back through an output device.
Explanation:
In a real-world environment, changing granularity requirements might dictate changes in primary key selection, and those changes might ultimately require the use of surrogate keys.
Explanation:
A surrogate key is a unique identity as an object or entity. It is used as an object in the database and as an entity in the modern world. Surrogate key is not a natural key hence it cannot be derived from application data.
Advantages of using surrogate key:
- They are unique
- They have uniform rules
- It allows unlimited values
- It stands the test of time
Answer: The Progressive Era was a period of widespread social activism and political reform across the United States that spanned the 1890s to the 1920s.
Explanation:
The advantage of using email to complain about a service or product is
that you are likely to get a faster response because this is the most
common way in which complaints are tackled, and it also means you have a
written record of the conversation between yourself and the company.
