SQL - SELECT Database, USE Statement

When you have multiple databases in your SQL Schema, then before starting your operation, you would need to select a database where all the operations would be performed.

The SQL USE statement is used to select any existing database in SQL schema.

Syntax:

Basic syntax of USE statement is as follows:

  USE DatabaseName;  

Always database name should be unique within the RDBMS.

Example:

You can check available databases as follows:

  SQL> SHOW DATABASES;  +--------------------+  | Database           |  +--------------------+  | information_schema |  | AMROOD             |  | TUTORIALSPOINT     |  | mysql              |  | orig               |  | test               |  +--------------------+  6 rows in set (0.00 sec)  

Now, if you want to work with AMROOD database, then you can execute the following SQL command and start working with AMROOD database:

SQL> USE AMROOD;