: Constant 100% CPU usage by oracle.exe can sometimes be caused by specific JDBC SSL driver issues or long-running BLOB queries.
: If memory isn't releasing after client applications disconnect, DBAs may need to manually adjust the SGA_TARGET parameter.
: For remote clients (like SQL*Plus or OCI) to connect, you must add oracle.exe to the Windows Firewall exception list .
: You can use the ORADIM tool to create a new Oracle instance and its associated Windows service, which runs oracle.exe .