SQL Server/T-SQL Tutorial/System Functions/sp change users login
Fixing Orphaned Database Users
<source lang="sql">
SELECT s.name LoginName, d.name DbName, d.sid FROM sys.database_principals d INNER JOIN sys.server_principals s ON d.sid = s.sid WHERE s.name = "YourName" EXEC sp_change_users_login "Report" EXEC sp_change_users_login "Auto_Fix", "Danny", NULL, "newDannypassword!#@"</source>