I am trying to upgarde from arcgis server 10.0 to 10.3,
While doing this i am getting error like below, Please help me on this issue.
[Wed Feb 10 18:25:51 2016] DB_open_instance()::db_connect (OCI8) error: 12560
[Wed Feb 10 18:25:51 2016] Error: Underlying DBMS error (-51).
[Wed Feb 10 18:25:51 2016] Error: DB_arcsde_setup: Unable to connect
[Wed Feb 10 18:25:51 2016] ORA-12560: TNS:protocol adapter error
[Wed Feb 10 18:25:51 2016] ERROR installing/upgrading ArcSDE, Error = -51
Here i have both oracle 64-bit client and 32-bit oracle client and i am able connect from ArcCatalog,
But when i tried to upgarde it is giving this error? Please please help me on this issue