I encountered a problem that I have spent hours fixing that. Here is the problem:
I am trying to connect to a remote Oracle 8i server using Oracle 11 instant client: here is my connection string in PHP:
*$conn = oci_connect('db_user', 'db_pass', "db_ip/db_service");*
db_ip is the ip of the server, such as "220.127.116.11". db_service is the service of server, such as "test".
The error shown is "*ORA-12514:* TNS:listener does not currently know of service requested in connect descriptor"
I could use the same client to connect to another oracle 10g server. The php code is same, only change the db_user or db_pass or db_ip. db_service is not provided.
I dont use tnsnames.ora for either oracle *10g s*erver or oracle 8i server. I just use the simple IP of server. Does this matter?
Server using: Windows Server 2008 R2
PHP: php 5.2.17
Oracle Instant Client: 11_2
Any ideas will be appreciated.