DESC sys.schema_table_statistics;
Field	Type	Null	Key	Default	Extra
table_schema	varchar(64)	YES		NULL	
table_name	varchar(64)	YES		NULL	
total_latency	text	YES		NULL	
rows_fetched	bigint(20) unsigned	NO		NULL	
fetch_latency	text	YES		NULL	
rows_inserted	bigint(20) unsigned	NO		NULL	
insert_latency	text	YES		NULL	
rows_updated	bigint(20) unsigned	NO		NULL	
update_latency	text	YES		NULL	
rows_deleted	bigint(20) unsigned	NO		NULL	
delete_latency	text	YES		NULL	
io_read_requests	decimal(42,0)	YES		NULL	
io_read	text	YES		NULL	
io_read_latency	text	YES		NULL	
io_write_requests	decimal(42,0)	YES		NULL	
io_write	text	YES		NULL	
io_write_latency	text	YES		NULL	
io_misc_requests	decimal(42,0)	YES		NULL	
io_misc_latency	text	YES		NULL	
SELECT * FROM sys.schema_table_statistics;
DESC sys.x$schema_table_statistics;
Field	Type	Null	Key	Default	Extra
table_schema	varchar(64)	YES		NULL	
table_name	varchar(64)	YES		NULL	
total_latency	bigint(20) unsigned	NO		NULL	
rows_fetched	bigint(20) unsigned	NO		NULL	
fetch_latency	bigint(20) unsigned	NO		NULL	
rows_inserted	bigint(20) unsigned	NO		NULL	
insert_latency	bigint(20) unsigned	NO		NULL	
rows_updated	bigint(20) unsigned	NO		NULL	
update_latency	bigint(20) unsigned	NO		NULL	
rows_deleted	bigint(20) unsigned	NO		NULL	
delete_latency	bigint(20) unsigned	NO		NULL	
io_read_requests	decimal(42,0)	YES		NULL	
io_read	decimal(41,0)	YES		NULL	
io_read_latency	decimal(42,0)	YES		NULL	
io_write_requests	decimal(42,0)	YES		NULL	
io_write	decimal(41,0)	YES		NULL	
io_write_latency	decimal(42,0)	YES		NULL	
io_misc_requests	decimal(42,0)	YES		NULL	
io_misc_latency	decimal(42,0)	YES		NULL	
SELECT * FROM sys.x$schema_table_statistics;