Connect Oracle Database with NAVICAT error ora-28547:connection to server failed, probable Oracle Net admin Error

The following error occurred while connecting to the Oracle database with Navicat

On the Internet, it turns out that the Oci.dll version is wrong. Because Navicat is connected to Oracle servers through Oracle clients, Oracle's clients are divided into two, one standard and one compact, the Oracle Install client. When we use Navicat, we typically include multiple versions of OCI under our own installation path, and if you use Navicat to connect to an Oracle server with ORA-28547 errors, Most are due to the fact that the NAVICAT local OCI version does not match the Oracle Server server . So all we have to do is download the OCI to match the Oracle server we installed.

OCI:http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html

It is important to note that whether you are using a 32-bit system or a 64-bit system, you should download the 32-bit install Client.

It is also important to note that oracle9i or the above version, to be installed install Client11 or below, Oracle8 or 8i server, requires installation of install CLIENT10 or below. This is not a big problem, because we now have 10 or 11 Oracle, just be careful.

Then configure it in Navicat, select Tools-Options

Then select the other-oci in the Left tab.

In the OCI library, locate the Oci.dll in the folder you just downloaded.

This completes the Navicat configuration and makes the Oci.dll version in Navicat consistent with the version in Oracle and must be restarted for navicat to take effect. So the entire configuration is complete.

Connect Oracle Database with NAVICAT error ora-28547:connection to server failed, probable Oracle Net admin Error