Ever get this error when using Oracle XE with SpringFramework JDBC Template? SORA-12519, TNS:no appropriate service handler found You can get around it by executing the following commands: ALTER SYSTEM SET PROCESSES=150 SCOPE=SPFILE; ALTER SYSTEM SET SESSIONS=100 SCOPE=SPFILE; Then stop and start database (Oracle XE service) and you’re good to go! Remember: needs to be [...]