How do I find the instance of a database?

What is the instance of a database?

A database instance is a set of memory structures that manage database files. A database is a set of physical files on disk created by the CREATE DATABASE statement. The instance manages its associated data and serves the users of the database.

How do I know if my database is instance?

Use the below command to check the status and other names of the oracle databases 19c and 21c. SELECT INSTANCE_NAME, STATUS, DATABASE_STATUS FROM V$INSTANCE; In the below output, you can see that database status is active which means the database is ready to use.

What is an instance of a database in SQL?

An instance of the Database Engine is a copy of the sqlservr.exe executable that runs as an operating system service. Each instance manages several system databases and one or more user databases. Each computer can run multiple instances of the Database Engine.

How do I find my current instance?

To identify the current instance: Check the value of the relevant environment variable. View the value of the DB2INSTANCE environment variable for the current session. View the value of the DB2INSTANCE system environment variable.