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

Re: dblink problem on two verion of ORACLE DB

Allan Nelson


Do you have the tnsnames.ora file in the 9i Oracle Home?


On 8/13/07, dba1 mcc <mccdba1@yahoo.com> wrote:
we have ORACLE 9ir2 and 10Gr2 on same server.  based
on ORACLE document we ONLY turn on 10Gr2 listener.

The problem I have is I tried to create DBLINK on 9ir2
database and connect to another 9ir2 datbase.  I got
"TNS:could not resolve service name" error.  I can use
following command under 10Gr2 environment:

sqlplus   system/manager@db01

but when I login to 9ir2 database and tried to use
DBLINK, I have error:

SQL> select * from table1@db01_link;

ERROR at line 1:
ORA-12154: TNS:could not resolve service name

any ideal?


Got a little couch potato?
Check out fun summer activities for kids.