As shown in the figure: an error is reported when the installed Navicat connects to the remote oracle database:
The solution is to go to the official website under the 32-bit instantclient-basic-win32-10.2.0.5.zip, address:
http://www.oracle.com/technetwork/topics/winsoft-085727.html
After decompressing it, copy the contents of the instantclient_10_2 folder and replace the contents of the instantclient in the Navicat directory, and the connection can be successful
