All Oracle Error Codes
Oracle DBA Forum

Frequent Oracle Errors

TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
PL/SQL compilation error
internal error
missing expression
table or view does not exist
end-of-file on communication channel
TNS:listener unknown in connect descriptor
insufficient privileges
PL/SQL: numeric or value error string
TNS:protocol adapter error
ORACLE not available
target host or object does not exist
invalid number
unable to allocate string bytes of shared memory
resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated

imp.exe full=y imports SYSTEM's objects, violates constraints...

Branimir Petrovic


I am attempting full export from DB1 Orcl on Win -> full
import into the empty, pre-created DB2 on different Win
system using this (DOS batch) command:

    log="%IMPLOG%" full=y ignore=y commit=y buffer=65536

Import log records reveals many, many errors due to full import's
attempt to import objects belonging to SYSTEM, OUTLN, WMSYS, DBSNMP.
Of course these schemas already existed in target db as they were
created at the database creation time therefore the errors and
violations like:

. importing SYSTEM's objects into SYSTEM
IMP-00061: Warning: Object type "SYSTEM"."REPCAT$_OBJECT_NULL_VECTOR"
already exists with a different identifier
. . importing table    "REPCAT$_AUDIT_ATTRIBUTE"
IMP-00019: row rejected due to ORACLE error 1
IMP-00003: ORACLE error 1 encountered
ORA-00001: unique constraint (SYSTEM.REPCAT$_AUDIT_ATTRIBUTE_PK) violated
. importing WMSYS's objects into WMSYS
. . importing table        "WM$ADT_FUNC_TABLE"       0 rows imported
. . importing table            "WM$ENV_VARS"
IMP-00019: row rejected due to ORACLE error 1
IMP-00003: ORACLE error 1 encountered
ORA-00001: unique constraint (WMSYS.WM$ENV_VARS_PK) violated
Column 2       0 rows imported

Now the question is - should the above errors worry me, and if
so - can anything be done to fix the above mess (especially since
patch level wise import database is not necessarily at the same
level as the "donor" database)?

Purpose of the exercise is to come up with the least troublesome
way (find simplest, most straightforward procedure with min amount
of steps) to move one development database from one Win "box" to
another Win "box" (may be with higher patch level and quite
likely with tablespaces/files sitting in different locations)...