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.
- 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.
