I'm using Oracle 19c. I have tested the connection by the commands "ping [ip]" and "tnsping", and both were successfully connected. Now, I want to connect to the Oracle developer from a client, and it is not be able to connect.
When I was using Oracle 12c, there was no such a problem. I really don't know what's going wrong here.
Related
I'm beginner level oracle developer. I have SQL developer installed on my machine. And I wanted to install Toad for oracle too. But When I tried to install Toad, it gave me an error:
No Valid Oracle Clients found. You need atleast one 64- bit client properly configured.
Can someone explain why I'm getting this error?
Because SQL Developer ships with its own JDBC driver, which doesn't require an oracle client to connect to the Database.
If you have a compatible Oracle Client sitting around, you can tell SQL Developer to piggyback on that client for connections - but THAT IS NOT required.
T.O.A.D. is a windows executable that needs an Oracle Client to connect to a database. An Instant Client is the easiest way to get going.
As the title suggests, I am trying to connect to a remote database via VPN. When I connect using SQL Developer, the connection is fine. However when I try to connect using SQLPlus I get the below error
ERROR:
ORA-12638: Credential retrieval failed
Enter user-name:
I am using the exact same credentials for both (cannot copy the details here as they are a clients and confidential).
Any thoughts as to why SQL Developer acts differently to SQLPlus?
Thanks in advance
K.
I've installed Oracle client in my machine, when I'm trying to connect to the oracle database server from Oracle SQL Developer am getting the following error:
Status : Failure -Test failed: IO Error: The Network Adapter could not establish the connection
But am able to connect to the server using sql plus and TOAD as well from my machine. What is the issue if Toad connects to the server why cant my Oracle sql developer could not connect??
checked all the possible solutions like:
tns strings checking, telnet to the server and its port,
changing the oracle home in the sqldeveloper->tools->preferences->database->advanced tab.
None solved my issue. Is this the firewall issue?
If it is so how am able to connect using TOAD/sql plus ??
UPDATE: I'm connecting to the Oracle database server using the VPN.
Any help is much appreciated.
Thanks in advance.
I have an Oracle 9i database server on a machine. I want to connect using the Oracle 12c client tool remotely to the 9i machine. I want to create a DSN and retrieve data from server to use in further front end applications. Is this possible?
I am already using the 11g client to connect to the 9i server, which is working fine. I want to test it with the 12c client.
I couldn't connect to Oracle 11g using Toad but I could connect using SQL Developer. I am receiving the following error message when connecting using Toad:
ORA-12505: TNS:listener does not currently know of SID given in the
connect descriptor.
I have ticked the option "Service Name" instead of "SID" so I'm not actually expecting such error message since I'm not trying to connect using SID. However, I am able to connect using SQL Developer using "Service Name".
What am I doing wrong? What am I missing here? And why does it work for SQL Developer and not for Toad?
I'm using Toad 9.0.1.8 and Oracle SQL Developer 3.1.0.7 by the way.