A query is a request for data or information from a database table. This data may be generated as results returned by structured query language (SQL) or as pictorials, graphic or complex results.
A query is used to extract data from a database in a readable format according to the users request.
Types of queries:
There are several types of queries in access that are used to generate information. Such queries are called “select queries” because they are used to “select” records with a given set of fileds. There are three types of queries.
1. Simple query
2. Parameter queries
3. Summary queries
