The SQL username and password are typically created and stored within the specific SQL server or database management system being used.
If you are working with a local SQL server, you can typically find the username and password within the server configuration files or by accessing the server settings through a graphical user interface.
If you are working with a remote SQL server or a database management system hosted by a third-party provider, the username and password may be provided to you by the hosting service or accessible through their user dashboard or settings.
It is important to keep your SQL username and password secure and to only grant access to authorized personnel to prevent unauthorized access to your databases and sensitive information.