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Editorial Team
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Asked: 2026-05-31T23:02:11+00:00

I am trying to import data to an Oracle database. I have .imp and

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I am trying to import data to an Oracle database. I have “.imp” and “.dmp” files for importing data. The database is using port 1521 and database name is “DB”.
I have tried the following command, but doesn’t work. 

impdp root/password@xxx.xxx.xxx.xxx:1521:DB 
    dumpfile=transmart.dmp
    logfile=transmart.imp
    schemas=i2b2hive,i2b2metadata,i2b2sampledata,i2b2demodata,i2b2workdata
             ,biomart,biomart_user,deapp,searchapp,tm_cz,tm_lz,tm_wz

ERROR: either ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA or ORA-12545: Connect failed because target host or object does not exist

I can telnet the IP and port with no problem.

Can anyone suggest please?

Thanks!

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1 Answer

  1. Editorial Team

    You have a syntax error in your EZConnect string.

    Try this instead (no need to fuss with tnsnames.ora this way):

    impdp root/password@xxx.xxx.xxx.xxx:1521/DB

    Notice the replacement of the “:” with a “/” between port and service name.

    As a side note, I long ago got out of the habit of putting passwords in command lines, where they may be easily snooped while the command is running. Let the program prompt you for the password:

    impdp root@xxx.xxx.xxx.xxx:1521/DB

    Especially if you’re going to use root for your commands 😉

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