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How many connections can SQL handle?
32,767 user connections
SQL Server allows a maximum of 32,767 user connections.
How can I see who is using SQL database?
You can use the Activity Monitor in SQL Server Management Studio. Once it’s open look at the Processes section to see what is running, the login, database being used, and other helpful information.
How can I tell if a SQL Server database is being used?
Checking to see if the number of transactions are increasing for a database is another way to see if it is being used. You can query the sys. dm_os_performance_counters for Transactions/sec and run this several times to see if the count is increasing or not. Or you can open Perfmon and watch it there as well.
What is the maximum number of concurrent connections in SQL Server?
The “Maximum number of concurrent connections” setting in SQL Server specifies the maximum number of simultaneous user connections on a SQL Server instance. The key word in the previous sentence is “simultaneous”. For example, SQL Server 2017, allows a maximum of 32,767 user connections.
Also, master is the database that records the existence of all other databases and the location of those database files and records the initialization information for SQL Server. Therefore, SQL Server cannot start if the master database is unavailable.
What does the master database do in SQL Server?
The master database records all the system-level information for a SQL Server system. This includes instance-wide metadata such as logon accounts, endpoints, linked servers, and system configuration settings.
Who is granted access to the master database?
By default all users that have access to the SQL Server instance are granted to perform SELECT operations in the master database in the behalf of the public database role.