oracle top sql

 select * from v$sql;
 select * from V$SQLAREA;
 
 
 
 SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
        buffer_gets, executions, buffer_gets/executions "Gets/Exec",
        hash_value,address
   FROM V$SQLAREA
  WHERE buffer_gets > 10000
ORDER BY buffer_gets DESC)
WHERE rownum <= 10
;

SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
        disk_reads, executions, disk_reads/executions "Reads/Exec",
        hash_value,address
   FROM V$SQLAREA
  WHERE disk_reads > 1000
ORDER BY disk_reads DESC)
WHERE rownum <= 10
;

SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
        executions, rows_processed, rows_processed/executions "Rows/Exec",
        hash_value,address
   FROM V$SQLAREA
  WHERE executions > 100
ORDER BY executions DESC)
WHERE rownum <= 10
;

SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
        parse_calls, executions, hash_value,address
   FROM V$SQLAREA
  WHERE parse_calls > 1000
ORDER BY parse_calls DESC)
WHERE rownum <= 10
;

SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
        sharable_mem, executions, hash_value,address
   FROM V$SQLAREA
  WHERE sharable_mem > 1048576
ORDER BY sharable_mem DESC)
WHERE rownum <= 10
;

SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
        version_count, executions, hash_value,address
   FROM V$SQLAREA
  WHERE version_count > 20
ORDER BY version_count DESC)
WHERE rownum <= 10
;