sql server - Orphan users/application users -
how orphan user can application user @ same time?
if delete orphan user @ database level, how can affect access @ application level?
the concept of orphan user
bit different have explained.
an orphan user in database user isn't mapped login. happens when move databases across servers or delete login without deleting users mapped login.
say on servera
took backup of databasea
has usera
logina
.
now restored backup on serverb
has login logina
. when restore database on serverb
usera
become orphan user , fix executing following command:
alter user [usera] login = [usera];
this map usera
logina
on serverb
.and if not fix whether application or uses usera's credentials not able access database on serverb.
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