标题: ORA-19561: string requires a DISK channel [打印本页] 作者: admin 时间: 2016-8-31 14:22 标题: ORA-19561: string requires a DISK channel ORA-19561: string requiresa DISK channel Cause: The attempted command requires that a DISK devicechannel be allocated
to the session, but a non-DISK device was found. Action: Deallocatethe current device and allocate a DISK channel, then then retry
the command.