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Oracle 19C in windows error message: ORA-12154: TNS

Emmanuel Marqueses3 days ago — edited 3 days ago

Can anyone help?

when i try to connect SQL plus to Oracle 19C in my windows 11 I'm getting this error message: ORA-12154: TNS:could not resolve the connect identifier specified

i already Put TNS_ADMIN in environmental variable and set the value where tnsname, listener, and sqlnet.ora are located

which is here C:\db_home\WINDOWS.X64_193000_db_home\network\admin still getting the same error

please help me fix

Comments

Hi.,

May i know which version of database you are using, Is it 19C, if 19C DB then, you are importing into the CDB or Any of PDB Database?

Based on your export command you have issued., I have given 2 scenario to perform as shown below.

expdp user/pass schemas=ctm920 directory=BACKUP_DIRDC logfile=backup.log filesize=1G

If you are using import on Container Database (CDB)

- Check the OS Directory is created & you have linked this OS Directory to DB directory.
Ex: $ mkdir -p /u01/dumpfile/
- Place dumpfile into /u01/dumpfile location.
- SQL> create or replace directory dumpfile as '/u01/dumpfile/';
- SQL> grant read, write on directory dumpfile to [import user];

impdp user/pass dumpfile=expdat.dmp logfile=imp_log.log directory=BACKUP_DIRDC TABLE_EXISTS_ACTION=REPLACE

If you are using import on Pluggable Database (PDB)

- Check the OS Directory is created & you have linked this OS Directory to DB directory.
Ex: $ mkdir -p /u01/dumpfile/
- Place dumpfile into /u01/dumpfile location.
- SQL> create or replace directory dumpfile as '/u01/dumpfile/';
- SQL> grant read, write on directory dumpfile to [import user];

impdp user/pass@(PDB NAME) dumpfile=expdat.dmp logfile=imp_log.log directory=BACKUP_DIRDC TABLE_EXISTS_ACTION=REPLACE

Keep us update.

Warm Regards,
Mir Sayeed Hassan
Oracle ACE Pro
Oracle Certified OCP | OCI

Solomon Yakobson 5 days ago

impdp parameter TABLE_EXISTS_ACTION=REPLACE applies to tables only. Errors you are getting indicate FUNCTION:"ctm920 "."CURRTIME", PROCEDURE:"ctm920 "."PURGE_CMR_RUNINF_1" and FUNCTION:"ctm920 "."DDIFF" already exist in target database. You need to decide do you want to keep there existing objects and for that you need to add EXCLUDE parameters to import or import them and for that you need to drop these objects before import.

SY.

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