Query – An integral feature of Microsoft Access Database Management

A query is a helpful and robust feature of Microsoft Database management which is used to view, add, delete, or update data.

Some reasons for using query are:

• With the increase in data, tables start growing in size, and there can be hundreds of thousands of records in each table. So, finding the required information from these become impossible. You can use query to find out the specific data using conditions or criteria.
• You can use queries to retrieve data from a table or to perform calculations or to summarize data.
• Using queries you can add, alter, or delete data.
• You can automate the tasks which are done repeatedly.
• You can use it to pull data from the tables for a form or report.

Queries make Microsoft Access easy to use.

Because of the pictorial representation of tables and the relationships between them, it becomes easy to create queries in Microsoft Access, and one can write queries without getting into the complexities of writing the raw Microsoft Access SQL. If you are acquainted with the features of queries, you can perform advanced analysis quickly without possessing any programming skills.

Being developed on SQL systems, it is easy to switch between query design and SQL syntax. Many developers and users use this platform to learn SQL syntax.

Furthermore, at an advanced level and for developing complex applications, developers prefer using VBA and SQL language.

Major types of queries

Select query

This simplest type of query is widely used to retrieve and display data from either one or more tables.

Action Query

Using action queries, you can make changes to many records at one time instead, and thus, it saves a lot of time.

Four types of action queries include:

• Append query to append data to an existing table.
• Delete query to delete all records from a table.
• Make Table Query to create tables.
• Update Query to update an existing set of data.

Parameter Query 

This type of query accompanies the other types of queries, and it specifies the other query Access database what you want it to do.