how to create database link in oracle using static ip

Posted on 2009-02-17
Medium Priority
Last Modified: 2013-12-19
how to create database link in oracle using static ip

Question by:anup1109
  • 2
LVL 74

Expert Comment

ID: 23659648
do you know the port and service/sid name?

if so, add a definition to your database SERVER's tnsnames.ora like this...

YOUR_DB_NAME.world =
    (ADDRESS = (PROTOCOL = TCP)(HOST = your.ip.address.here)(PORT = 1521))
      (SERVICE_NAME = your_service_name)

then create a database link inside the database like...

create database link "your_db_link"
connect to your_user
identified by "your_password"
using 'your_db_name'
LVL 74

Accepted Solution

sdstuber earned 2000 total points
ID: 23659672
you can also put the entire tns entry in the link itself

create database link your_db_link
connect to your_user
identified by your_password
using '(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=your.ip.address.here)(PORT = 1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=your_service_name)))'
LVL 11

Expert Comment

ID: 23659844
Anup, DB links and IPs have an intermediate layer in between: TNS
So your question ends up being two-part:
  • How do I build up a TNS address using a static IP?
  • How do I use it to create a DB link?
For the first question, you just use your static IP where you would put the host name.
For the second, you create a DB link referencing the TNS alias, or else specify the TNS connection string in place. Both things are done through the keyword USING (sdstuber's 1st and 2nd examples respectively).
Note that you can omit the CONNECT TO ... IDENTIFIED BY ... portion. In that case, remote connections will be attempted with the same credentials you used to connect to your local DB.
Again, it's NOT that DB links have static IPs... it's TNS connection strings that have them :-)

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Background In several of the companies I have worked for, I noticed that corporate reporting is off loaded from the production database and done mainly on a clone database which needs to be kept up to date daily by various means, be it a logical…
Shell script to create broker configuration file using current broker Configuration, solely for purpose of backup on Linux. Script may need to be modified depending on OS-installation. Please deploy and verify the script in a test environment.
This video shows how to recover a database from a user managed backup
This video shows how to copy an entire tablespace from one database to another database using Transportable Tablespace functionality.
Suggested Courses

850 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question