Question

what is query and there parts

Answer 1

A query is a request for information from a database. There are three general methods for posing queries:

Choosing parameters from a menu: In this method, the database system presents a list of parameters from which you can choose. This is perhaps the easiest way to pose a query because the menus guide you, but it is also the least flexible.Query by example (QBE): In this method, the system presents a blank record and lets you specify the fields and values that define the query.Query language: Many database systems require you to make requests for information in the form of a stylized query that must be written in a special query language. This is the most complex method because it forces you to learn a specialized language, but it is also the most powerful.

Answer 2

A query is like a simple question we ask to find a specific information from the database. We use queries to view, change, summarise and analyse specific data in different ways. A query is a database object that help us to retrieve and view information from one or more database tables that meet a specific criteria or condition we define.
There are 4 types of queries:-
•Select Query
•Action Query
•Parameter Query
•Aggregate Query.