How many instances can I set as default instance?

Question

One instance can be the default instance. The default instance has no name. If a connection request specifies only the name of the computer, the connection is made to the default instance. A named instance is one where you specify an instance name when installing the instance. 11 мар. 2022 г.

How many default instance can you have on SQL 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.

What is a default instance?

Definition. A default instance is a type of instance that is used when installing a single instance of SQL server. In contrast, a named instance is a type of instance where the user specifies an instance name when installing the instance.

Can we change named instance to default instance?

The only way to change the instance name is to re-install - uninstall and install as default instance.

What is the difference between the named instance and default instance?

A named instance is identified by the network name of the computer plus the instance name that you specify during installation. The client must specify both the server name and the instance name when connecting. By default, SQL Server installs in the default instance unless you specify an instance name.

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