Miscellaneous SQL Queries for DBA's
1) To find corrupt Object/Segments using file_id and block_id
SET LINESIZE 145
SET PAGESIZE 9999
COLUMN sid FORMAT 999 HEADING 'SID'
COLUMN oracle_username FORMAT a12 HEADING 'Oracle User' JUSTIFY right
COLUMN os_username FORMAT a9 HEADING 'O/S User' JUSTIFY right
COLUMN session_program FORMAT a18 HEADING 'Session Program' TRUNC
COLUMN session_machine FORMAT a18 HEADING 'Machine' JUSTIFY right TRUNC
COLUMN session_pga_memory FORMAT 9,999,999,999 HEADING 'PGA Memory'
COLUMN session_pga_memory_max FORMAT 9,999,999,999 HEADING 'PGA Memory Max'
COLUMN session_uga_memory FORMAT 9,999,999,999 HEADING 'UGA Memory'
COLUMN session_uga_memory_max FORMAT 9,999,999,999 HEADING 'UGA Memory MAX'
SELECT
s.sid sid
, lpad(s.username,12) oracle_username
, lpad(s.osuser,9) os_username
, s.program session_program
, lpad(s.machine,8) session_machine
, (select ss.value from v$sesstat ss, v$statname sn
where ss.sid = s.sid and
sn.statistic# = ss.statistic# and
sn.name = 'session pga memory') session_pga_memory
, (select ss.value from v$sesstat ss, v$statname sn
where ss.sid = s.sid and
sn.statistic# = ss.statistic# and
sn.name = 'session pga memory max') session_pga_memory_max
, (select ss.value from v$sesstat ss, v$statname sn
where ss.sid = s.sid and
sn.statistic# = ss.statistic# and
sn.name = 'session uga memory') session_uga_memory
, (select ss.value from v$sesstat ss, v$statname sn
where ss.sid = s.sid and
sn.statistic# = ss.statistic# and
sn.name = 'session uga memory max') session_uga_memory_max
FROM
v$session s
ORDER BY session_pga_memory DESC
/
-- Active SQL 10g
SELECT nvl(ses.username,'ORACLE PROC')||' ('||ses.sid||')' USERNAME,
SID,
MACHINE,
REPLACE(SQL.SQL_TEXT,CHR(10),'') STMT,
ltrim(to_char(floor(SES.LAST_CALL_ET/3600), '09')) || ':'
|| ltrim(to_char(floor(mod(SES.LAST_CALL_ET, 3600)/60), '09')) || ':'
|| ltrim(to_char(mod(SES.LAST_CALL_ET, 60), '09')) RUNT
FROM V$SESSION SES,
V$SQLtext_with_newlines SQL
where SES.STATUS = 'ACTIVE'
and SES.USERNAME is not null
and SES.SQL_ADDRESS = SQL.ADDRESS
and SES.SQL_HASH_VALUE = SQL.HASH_VALUE
and Ses.AUDSID <> userenv('SESSIONID')
order by runt desc, 1,sql.piece;
1) To find corrupt Object/Segments using file_id and block_id
select
segment_name,block_id,file_id from dba_extents where FILE_ID=&1 and &2
between block_id and block_id+blocks-1
/
2) Indexes created on Table_name
set lin 10000
col INDEX_NAME
for a30
col TABLE_NAME
for a30
col index_type
for a25
col status for
a10
--col
LAST_ANALYZED for a19 wrap
col column_name
for a20
col
column_expression for a25
select
a.INDEX_NAME ,b.column_name, column_expression,a.TABLE_NAME,STATUS,INDEX_TYPE
from user_indexes
a,user_ind_columns b, user_ind_expressions c
where
a.table_name = upper(trim('&1'))
and
a.TABLE_NAME=b.TABLE_NAME
and
a.INDEX_NAME=b.INDEX_NAME
and a.INDEX_NAME=c.INDEX_NAME
(+)
and
a.INDEX_NAME=c.INDEX_NAME (+)
/
3) Current running query
set lin 10000
col sid for
999999999
col serial#
for 9999999999
col osuer for a20
col SQL_TEXT for
a70 wrap
col osuser for
a10
col status for
a10
--select
sid,serial#, status, osuser,b.EXECUTIONS,b.DISK_READS, b.SQL_TEXT from
v$session a, v$sqlarea b
--where
a.SQL_ADDRESS=b.ADDRESS
--and
b.HASH_VALUE = a.SQL_HASH_VALUE
select
sid,serial#, status, osuser,b.EXECUTIONS,b.DISK_READS, b.SQL_TEXT from
v$session a, v$sql b
where
a.SQL_ADDRESS=b.ADDRESS
and b.HASH_VALUE
= a.SQL_HASH_VALUE
order by 6 desc,5
desc
/
4) To find query how much memory (PGA)
SET PAGESIZE 9999
COLUMN sid FORMAT 999 HEADING 'SID'
COLUMN oracle_username FORMAT a12 HEADING 'Oracle User' JUSTIFY right
COLUMN os_username FORMAT a9 HEADING 'O/S User' JUSTIFY right
COLUMN session_program FORMAT a18 HEADING 'Session Program' TRUNC
COLUMN session_machine FORMAT a18 HEADING 'Machine' JUSTIFY right TRUNC
COLUMN session_pga_memory FORMAT 9,999,999,999 HEADING 'PGA Memory'
COLUMN session_pga_memory_max FORMAT 9,999,999,999 HEADING 'PGA Memory Max'
COLUMN session_uga_memory FORMAT 9,999,999,999 HEADING 'UGA Memory'
COLUMN session_uga_memory_max FORMAT 9,999,999,999 HEADING 'UGA Memory MAX'
SELECT
s.sid sid
, lpad(s.username,12) oracle_username
, lpad(s.osuser,9) os_username
, s.program session_program
, lpad(s.machine,8) session_machine
, (select ss.value from v$sesstat ss, v$statname sn
where ss.sid = s.sid and
sn.statistic# = ss.statistic# and
sn.name = 'session pga memory') session_pga_memory
, (select ss.value from v$sesstat ss, v$statname sn
where ss.sid = s.sid and
sn.statistic# = ss.statistic# and
sn.name = 'session pga memory max') session_pga_memory_max
, (select ss.value from v$sesstat ss, v$statname sn
where ss.sid = s.sid and
sn.statistic# = ss.statistic# and
sn.name = 'session uga memory') session_uga_memory
, (select ss.value from v$sesstat ss, v$statname sn
where ss.sid = s.sid and
sn.statistic# = ss.statistic# and
sn.name = 'session uga memory max') session_uga_memory_max
FROM
v$session s
ORDER BY session_pga_memory DESC
/
-- Active SQL 10g
SELECT nvl(ses.username,'ORACLE PROC')||' ('||ses.sid||')' USERNAME,
SID,
MACHINE,
REPLACE(SQL.SQL_TEXT,CHR(10),'') STMT,
ltrim(to_char(floor(SES.LAST_CALL_ET/3600), '09')) || ':'
|| ltrim(to_char(floor(mod(SES.LAST_CALL_ET, 3600)/60), '09')) || ':'
|| ltrim(to_char(mod(SES.LAST_CALL_ET, 60), '09')) RUNT
FROM V$SESSION SES,
V$SQLtext_with_newlines SQL
where SES.STATUS = 'ACTIVE'
and SES.USERNAME is not null
and SES.SQL_ADDRESS = SQL.ADDRESS
and SES.SQL_HASH_VALUE = SQL.HASH_VALUE
and Ses.AUDSID <> userenv('SESSIONID')
order by runt desc, 1,sql.piece;
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