How many transactions can SQL handle?

Question

By default, SQL Server allows a maximum of 32767 concurrent connections which is the maximum number of users that can simultaneously log in to the SQL server instance.

How many transactions per second can SQL Server handle?

Kelly pointed to one early user of the technology, online gaming company Bwin, which by updating to SQL Server 2014 managed to increase the number of transactions on its SQL Server-based Web application, from 15,000 transactions per second to 250,000 transactions per second.

How big can a SQL transaction be?

About the size, there is no specific size limit in SQL Server, they can theoretically modify any amount of data without problems. The practical limit is really the size of the transaction log file of the target database.

How many users can SQL handle?

SQL Server allows a maximum of 32,767 user connections.

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