DESC sys.latest_file_io;
Field	Type	Null	Key	Default	Extra
thread	varchar(149)	YES		NULL
file	varchar(512)	YES		NULL
latency	text	YES		NULL
operation	varchar(32)	NO		NULL
requested	text	YES		NULL
SELECT * FROM sys.latest_file_io;
DESC sys.x$latest_file_io;
Field	Type	Null	Key	Default	Extra
thread	varchar(149)	YES		NULL
file	varchar(512)	YES		NULL
latency	bigint(20) unsigned	YES		NULL
operation	varchar(32)	NO		NULL
requested	bigint(20)	YES		NULL
SELECT * FROM sys.x$latest_file_io;
