- 05 Nov, 2021
- 0 Comments
- 42 Secs Read
ORA-12502 TNS-12502 TNS:listener received no CONNECT_DATA from client
ORA-12502 TNS-12502 TNS:LISTENER RECEIVED NO CONNECT_DATA FROM CLIENT
TNS:listener received no CONNECT_DATA from client
Cause:No CONNECT_DATA was passed to the listener.
Action: Check that the service name resolved from TNSNAMES.ORA has the CONNECT_DATA component of the connect descriptor.
Below is the sample entry of tnsnames.ora:-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #When using SERVICE_NAME in CONNECT_DATA componentorcl.example.com = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = myserver.example.com)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = orcl) ) )#When using SID in CONNECT_DATA component orcl.example.com = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = myserver.example.com)(PORT = 1521)) ) (CONNECT_DATA = (SID = orcl) ) ) |