Oracle Tips 7 [ora 12519 tnsno appropriate service handler found]
Using JDBC with Oracle 10g i found this error : “ora 12519 tnsno appropriate service handler found”, today i found an article on Internet about.
I only execute on apex query :
ALTER SYSTEM SET PROCESSES=150 SCOPE=SPFILE;
after that i restarted my Oracle10gXe server on my server, and all works well !!!