ORA-00000 normal, successful completion
ORA-00001 unique constraint (string.string) violated
ORA-00017 session requested to set trace event
ORA-00018 maximum number of sessions exceeded
ORA-00019 maximum number of session licenses exceeded
ORA-00020 maximum number of processes (string) exceeded
ORA-00021 session attached to some other process; cannot switch session
ORA-00022 invalid session ID; access denied
ORA-00023 session references process private memory; cannot detach session
ORA-00024 logins from more than one process not allowed in single-process mode
ORA-00025 failed to allocate string
ORA-00026 missing or invalid session ID
ORA-00027 cannot kill current session
ORA-00028 your session has been killed
ORA-00029 session is not a user session
ORA-00030 User session ID does not exist
ORA-00031 session marked for kill
ORA-00032 invalid session migration password
ORA-00033 current session has empty migration password
ORA-00034 cannot string in current PL/SQL session
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