Question

Write a short note on the following.
1. Primary key
2. Report
3. Query
4. Form
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Answer 1

Answer:

1.A primary key, also called a primary keyword, is a key in a relational database that is unique for each record. It is a unique identifier, such as a driver license number, telephone number (including area code), or vehicle identification number (VIN). A relational database must always have one and only one primary key.

2.give a spoken or written account of something that one has observed, heard, done, or investigated.

3. a question, especially one expressing doubt or requesting information.

the shape and structure of something as distinguished from its material the building's massive form

Answer 2

Answer

Explanation:

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