SQL Server Whoami - SQL

SQL Server Whoami is a command that helps you determine the current user running a SQL Server instance.

Syntax

SELECT SUSER_SNAME();

Description

The SUSER_SNAME() function returns the login name of the current user in SQL Server. This function is commonly used to implement security policies in SQL Server by identifying the user running a specific query.

In addition to identifying the current user, the SUSER_SNAME() function can also be used to query the login name of other users by passing a valid user ID as a parameter.

Example

To use the SUSER_SNAME() function, open SQL Server Management Studio and run the following query:

SELECT SUSER_SNAME();

This will return the current login name, such as "sa" or "domain\username".

You can also use this function to query the login name of a specific user by passing a user ID as a parameter:

SELECT SUSER_SNAME(12345);

This will return the login name associated with user ID 12345.

Conclusion

SQL Server Whoami is a useful tool for implementing security policies in SQL Server by identifying the user running a specific query. By using the SUSER_SNAME() function, you can easily retrieve the login name of the current user or another user and use this information to enforce security policies.