how to check oracle current running sql status?

-- check the block running sql

select sid,serial#,sql_id,blocking_session,username from v$session where blocking_session>0;

 

-- find the current running sql

SELECT OSUSER,SERIAL#,SQL_TEXT,blocking_session
FROM V$SESSION, V$SQL
WHERE
V$SESSION.SQL_ADDRESS=V$SQL.ADDRESS

-- find all error objects

select * from dba_errors

 

-- check tablespace status

select t2.tname "tablespace",
       round(t2.total, 2) "total/M",
       round(t2.total - nvl(t1.free, 0), 2) "used/M",
       round(nvl(t1.free, 0), 2) "free/M",
       round((1 - (nvl(t1.free, 0) / t2.total)) * 100, 2) used_percent
  from (select sum(nvl(a.bytes, 0)) / (1024 * 1024) free,
               a.tablespace_name tname
          from dba_free_space a
         group by a.tablespace_name) t1,
       (select sum(b.bytes) / (1024 * 1024) total, b.tablespace_name tname
          from dba_data_files b
         group by b.tablespace_name) t2
 where t1.tname(+) = t2.tname
union
select tablespace_name || inst_id "tablespace",
       total_blocks * vp.value / 1024 / 1024 "total/M",
       used_blocks * vp.value / 1024 / 1024 "used/M",
       free_blocks * vp.value / 1024 / 1024 "free/M",
       round((used_blocks / total_blocks * 100), 2) used_percent
  from gv$sort_segment gs, v$parameter vp
 where vp.name = 'db_block_size'
 order by used_percent;

 

-- check db objects status

select * from dba_errors