学步园

--查看oracle中哪些SQL语句在执行

sELECT s.username,
       s.sid,
       pr.PID,
       s.OSUSER,
       s.MACHINE,
       s.PROGRAM,
       rs.segment_id,
       r.usn,
       rs.segment_name,     
       r.rssize/1024/1024,
       sq.sql_text
  FROM v$transaction t, v$session s, v$rollstat r, dba_rollback_segs rs ,v$sqltext  sq,v$process pr
WHERE s.saddr = t.ses_addr
   AND t.xidusn = r.usn
   AND rs.segment_id = t.xidusn
   AND s.sql_address=sq.address
   AND s.sql_hash_value = sq.hash_value
   AND s.PADDR=pr.ADDR
ORDER BY t.used_ublk DESC ,sq.PIECE;

--表空间增长

SELECT   a.tablespace_name,
         ROUND (a.total_size) "total_size(MB)",
         ROUND (a.total_size) - ROUND (b.free_size, 3) "used_size(MB)",
         ROUND (b.free_size, 3) "free_size(MB)",
         ROUND (b.free_size / total_size * 100, 2) || '%' free_rate,
         ROUND ( (a.total_size - b.free_size) / total_size * 100, 2) || '%' used_rate,
         sysdate
        
  FROM   (  SELECT   tablespace_name, SUM (bytes) / 1024 / 1024 total_size
              FROM   dba_data_files
          GROUP BY   tablespace_name) a,
         (  SELECT   tablespace_name, SUM (bytes) / 1024 / 1024 free_size
              FROM   dba_free_space
          GROUP BY   tablespace_name) b
 WHERE   a.tablespace_name = b.tablespace_name(+)
 and (a.tablespace_name = 'UNDOTBS1' or a.tablespace_name = 'NETSPLATDATA' )