cannot drop a user that is currently connected sql server

SQL Server Error : 15025 Details

SQL Server Error: 15025 Severity: 16 Event Logged or not: No Description: The server principal ‘%s’ already exists. Severity 16 Description: Indicates general errors that can be corrected by the user.

Reading sql server error log location from SQL Query

Identifying SQL Server Error Log File for SQL Server Error 15025, used by SQL Server Database Engine can be done by reading SQL Server Error Logs. DBA can execute the XP_READERRORLOG extended stored procedure to read the SQL Server Error Log and search for its location used by the instance of SQL Server.

USE master
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xp_readerrorlog 0, 1, N'Logging SQL Server messages in file', NULL, NULL, N'asc'
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