SQL SERVER – FIX : Error 15023: User already exists in current database.February 15, 2007Pinal DaveSQL PerformanceDBA, SQL Cursor, SQL Download, SQL Error Messages, SQL Joins, SQL Scripts, SQL Server DBCC, SQL Server Security, SQL Stored ProcedureError 15023: User already exists in current database. I fix it with sp_change_users_login, using Report, Auto_Fix or Update_One to link the user to a login.Read More