Can multiple SQL Server instances run on the same server?

Can we create multiple instances of SQL Server on the same machine?

You can install multiple instances of SQL Server, or install SQL Server on a computer where earlier SQL Server versions are already installed. The following SQL Server-related items are compatible with the installation of multiple instances on the same computer: Database Engine.

How many SQL instances can be installed in a server?

You can install as many as 50 SQL Server instances on a Windows Server; obviously, we do not recommend this. In a Windows failover cluster, the maximum number of SQL Server instances is reduced by half if you're using shared cluster drives. Only one of the SQL Server instances on a server can be the default instance.

How do I install multiple instances of SQL Server on the same computer?

SQL Server - How to Create Multiple Instances on Single Server1Click “New installation or add features to an existing installation”, the following screen appears:2As you can see SQLEXPRESS instance already exists, it was created by the first installation, now select “New installation or add shared features”.SQL Server - How to Create Multiple Instances on Single Server - SQLines

Can a server have multiple instances?

You can create more than one server instance on your system. Each server instance has its own instance directory, and database and log directories. Multiply the memory and other system requirements for one server by the number of instances planned for the system.