We are doing migration from SQL2008R2 to SQL 2014 for some of the databases hosted on 2008R2 to 2014 and remaining DB's to other servers.
I am aware of migrating the login using dbatoo or using sp_helprevlogin..
But using that it would move all the logins from 2008R2 instance to 2014.
Since we are only moving some databases we only need to move their respective logins or i should say only those logins that are present under users in the database geting migrated to 2014 instance.
How can we achieve this intelligently via script, because doing manually is taking lot of time as we have hundred of logins and about 40 databases