Unable to Connect to connect to Oracle 12c with SID But Service Name Works -

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i'm trying connect oracle database. database hosted in local virtual machine.

i can connect fine with service name: ...@localhost:1521/orcl
however sid: ...@localhost:1521:cdb1 not work.

currently when try , connect get: ora-01017: invalid username/password; logon denied

note:

  • i'm using exact same username , password both login - attempts.
  • i can connect sid system user.

your service name orcl - connection works.

then try different database, 'cdb1', , same user/password don't work.

those different databases, probably.

you're in multitenant environment. should use service name when connecting 12c instance. sid in multitenant take container database. pluggables running in container reachable service name.


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