SELECT sql_text, username, disk_reads_per_exec, buffer_gets, disk_reads,
parse_calls, sorts, executions, rows_processed, hit_ratio, first_load_time,
sharable_mem, persistent_mem, runtime_mem, cpu_time, elapsed_time, address,
hash_value
FROM (SELECT sql_text, b.username, ROUND(( a.disk_reads / DECODE(a.executions,  0 ,  1 , a.executions)),  2 )
disk_reads_per_exec, a.disk_reads, a.buffer_gets, a.parse_calls,
a.sorts, a.executions, a.rows_processed,  100  - ROUND( 100  * a.disk_reads / GREATEST(a.buffer_gets,  1 ),  2 ) hit_ratio,
a.first_load_time, sharable_mem, persistent_mem, runtime_mem,
cpu_time, elapsed_time, address, hash_value
FROM sys.v_$sqlarea a, sys.all_users b
WHERE a.parsing_user_id = b.user_id
AND b.username NOT IN ('SYS', 'SYSTEM'))