Question

.The symbol Asterisk (*) in a select query retrieves ____________.​

Answer 1

The symbol asterisk is used to retrieve all the columns of a required table.

Detailed answer

This is used in database management to retrieve all the columns of a particular table together.

• This can also be done to retrieve all the data from a single column of a table.
• This is a command that is already present in the program so that users can access large amounts of data easily.
• The symbol of the asterisk is (*) is used to retrieve it.

Answer 2

The symbol Asterisk (*) in a select query retrieves all data from the table.

Extra Information

Query

A query helps us in requesting the data from table or tables of a database.

Example of an SQL query

SELECT * FROM table_name;

In this SELECT is used to select data from the database.

Asterisk (*) is used to retrieve all data from a table.

At the place of table_name, you can write the name of the table present in the database from which you want to retrieve the data.

Database

Database is stored in the computer system which has structured information in organized collections.

There are various types of databases such as

1) Centralized Database

2) Distributed Database

3) Relational Database

4) NoSQL Database

5) Cloud Database

6) Object-oriented Databases

7) Hierarchical Databases

8) Network Databases

Database Management System

Database Management Software is used to store data, retrieve the stored data, and also run queries on data to get specific data according to usage.