Can one database have multiple instances?

Can you have multiple instances to access one database?

It appears as though you cannot have multiple databases running under one instance. Without OPS or RAC, you must have one instance for each database if you want to access data in that database. However, it is possible to access another database's data through an instance by using Database Links.

How do I create a multiple instance of a database?

Creating a Database for a Multi-instance Environment.1Start Server Manager.2Connect with SYSDBA privileges.3Start up an instance with the NOMOUNT option.4Issue the CREATE DATABASE statement.5Create additional rollback segments and threads, as needed.6Close and dismount the database.14 Creating a Database & Objects for Multiple Instances

What is multiple instance in database?

Multiple instances of the database manager might be created on a single server. This means that you can create several instances of the same product on a physical computer, and have them running concurrently. This provides flexibility in setting up environments.

Can a SQL Server have multiple instances?

Yes, we can use multiple instance of SQL Server of same machine/server. All instances of the database engine other than the default instance are identified by an instance name specified during installation of the instance.