Day To Day Responsibilities related oracle dba scripts

 Day To Day Responsibiliteis related oracle dba scripts

These scripts are valid for Single & rac Database & exadata.

A => status to check Oracle instance is running or not.

[oracle@yesbolisetty01 ~]$ ps -ef | grep smon

or

[oracle@yesbolisetty01 ~]$ ps -ef | grep pmon

Check all Instance of any database as follows.

[oracle@yesbolisetty01 ~]$ srvctl status database -d <DB_NAME>

[oracle@yesbolisetty01 ~]$ ps -ef | grep smon

oracle 140550 1 0 2019 ? 00:01:49 asm_smon_+ASM1

root 147726 1 1 2019 ? 1-04:06:08 /u01/app/12.1.0.2/grid/bin/osysmond.bin

oracle 156342 1 0 2019 ? 00:13:57 ora_smon_testdb

oracle 248609 246524 0 12:02 pts/0 00:00:00 grep smon

[oracle@yesbolisetty01 ~]$

[oracle@yesbolisetty01 ~]$ srvctl status database -d testdb

Instance testdb1 is running on node yesbolisetty01

Instance testdb2 is running on node yesbolisetty02

[oracle@yesbolisetty01 ~]$

B => status to check Local /SCAN listeners are running or not

[oracle@yesbolisetty01 ~]$ lsnrctl status

[oracle@yesbolisetty01 ~]$ srvctl status scan_listener

C => Check the Server Storage or Disk of Oracle database.

[oracle@msddbadm01 ~]$ df -h

Unix

[oracle@msddbadm01 ~]$ df -g

[grid@msdidb01 ~]$ asmcmd lsdg

D => Check the Tablespaces for objects to extend if required.

set pagesize 1000 linesize 180

tti 'Tablespace Usage Status'

col "TOTAL(MB)" for 99,999,999.999

col "USAGE(MB)" for 99,999,999.999

col "FREE(MB)" for 99,999,999.999 

col "EXTENSIBLE(MB)" for 99,999,999.999 

col "FREE PCT %" for 999.99

col "USED PCT OF MAX %" for 999.99

col "NOTO" for 9999

col "OTO" for 999

select d.tablespace_name "NAME", 

d.contents "TYPE",

nvl(a.bytes /1024/1024,0) "TOTAL(MB)",

nvl(a.bytes - nvl(f.bytes,0),0)/1024/1024 "USAGE(MB)",

nvl(f.bytes,0)/1024/1024 "FREE(MB)",

nvl((a.bytes - nvl(f.bytes,0))/a.bytes * 100,0) "FREE PCT %",

nvl(a.ARTACAK,0)/1024/1024 "EXTENSIBLE(MB)",

nvl((a.bytes - nvl(f.bytes,0))/ (a.bytes + nvl(a.ARTACAK,0)) * 100,0) "USED PCT OF MAX %",

a.NOTO, a.OTO

from sys.dba_tablespaces d,

(select tablespace_name, sum(bytes) bytes,

sum(decode(autoextensible,'YES',MAXbytes - bytes,0 )) ARTACAK,

count(decode(autoextensible,'NO',0)) NOTO,

count(decode(autoextensible,'YES',0)) OTO

from dba_data_files

group by tablespace_name) a,

(select tablespace_name, sum(bytes) bytes

from dba_free_space

group by tablespace_name) f

where d.tablespace_name = a.tablespace_name(+)

and d.tablespace_name = f.tablespace_name(+)

and NOT (d.extent_management like 'LOCAL'and d.contents like 'TEMPORARY')

UNION ALL

select d.tablespace_name "NAME",

d.contents "TYPE",

nvl(a.bytes /1024/1024,0) "TOTAL(MB)",

nvl(t.bytes,0)/1024/1024 "USAGE(MB)",

nvl(a.bytes - nvl(t.bytes,0),0)/1024/1024 "FREE(MB)",

nvl(t.bytes/a.bytes * 100,0) "FREE PCT %",

nvl(a.ARTACAK,0)/1024/1024 "EXTENSIBLE(MB)",

nvl(t.bytes/(a.bytes + nvl(a.ARTACAK,0)) * 100,0) "USED PCT OF MAX %", a.NOTO, a.OTO

from sys.dba_tablespaces d,

(select tablespace_name, sum(bytes) bytes,

sum(decode(autoextensible,'YES',MAXbytes - bytes,0 )) ARTACAK,

count(decode(autoextensible,'NO',0)) NOTO,

count(decode(autoextensible,'YES',0)) OTO

from dba_temp_files

group by tablespace_name) a,

(select tablespace_name, sum(bytes_used) bytes 

from v$temp_extent_pool

group by tablespace_name) t

where d.tablespace_name = a.tablespace_name(+)

and d.tablespace_name = t.tablespace_name(+)

and d.extent_management like 'LOCAL'

and d.contents like 'TEMPORARY%'

order by 3 desc;

exit;

E => HOW TO Check the Recovery Size Area

set pagesize 1000 line 200

col "db_recovery_file_dest" for a32;

col size_m for 999,999,999;

col used_m for 999,999,999;

col pct_used for 999;

select name "db_recovery_file_dest",ceil(space_limit/1024/1024) TOTAL_MB, ceil( space_used /1024/1024) USED_MB,

decode( nvl(space_used, 0),0,0,ceil(( space_used /space_limit) * 100)) PERCENTAGE(%)

from v$recovery_file_dest

order by 1;

exit;

F => How to Check the alert log if a vital error exists or not.

set linesize 150

set pagesize 150

SELECT SUBSTR (MESSAGE_TEXT, 1, 300) MESSAGE_TEXT, COUNT (*) cnt

FROM X$DBGALERTEXT

WHERE (MESSAGE_TEXT LIKE '%ORA-%' OR UPPER (MESSAGE_TEXT) LIKE '%ERROR%')

AND CAST (ORIGINATING_TIMESTAMP AS DATE) > SYSDATE - 1 

GROUP BY SUBSTR (MESSAGE_TEXT, 1, 300);

exit;

G => Check the latest Archivelog and Full Backup are done or not

SELECT TO_CHAR (start_time, 'DD-MM-YYYY HH24:MI:SS') start_time, input_type, status, ROUND (elapsed_seconds / 3600, 1) time_hr,INPUT_BYTES/1024/1024/1024 IN_GB,OUTPUT_BYTES/1024/1024/1024 OUT_GB ,OUTPUT_DEVICE_TYPE FROM 

v$rman_backup_job_details WHERE START_TIME > SYSDATE - 3 ORDER BY start_time DESC;

H => Check any session blocking the other session ( blocking session and Lock control.

select s1.username || '@' || s1.machine

|| ' ( SID=' || s1.sid || ' ) is blocking '

|| s2.username || '@' || s2.machine || ' ( SID=' || s2.sid || ' ) ' AS blocking_status

from gv$lock l1, gv$session s1, gv$lock l2, gv$session s2

where s1.sid=l1.sid and s2.sid=l2.sid

and l1.BLOCK=1 and l2.request > 0

and l1.id1 = l2.id1

and l2.id2 = l2.id2 ;

I => Check the DBMS jobs running or not and check the status of the Jobs

-- Failed Scheduled Jobs 

SELECT owner, job_name,status,LOG_DATE, ERROR#, ( EXTRACT (SECOND FROM run_duration) /60 + EXTRACT (MINUTE FROM run_duration) + EXTRACT (HOUR FROM run_duration) * 60 + EXTRACT (DAY FROM run_duration) * 60 * 24) MINUTES,ADDITIONAL_INFO 

FROM dba_scheduler_job_run_details

WHERE LOG_DATE > SYSDATE - 1 AND status != 'SUCCEEDED' ORDER BY 1 ASC, 4 DESC;

-- Running and Succeeded Scheduled Jobs

SELECT OWNER, JOB_NAME, LAST_START_DATE, STATE

FROM DBA_SCHEDULER_JOBS

WHERE LAST_START_DATE > SYSDATE - 1 AND STATE <> 'SCHEDULED';

J => Check the Dataguard is synchronized or not.

select process, client_process,thread#,sequence#,status from v$managed_standby where process like '%MRP%';

select name,value from v$dataguard_stats;

K => Check the Performance Page of Enterprise Manager or Enterprise Manager Cloud Control

Open Performance Page of Enterprise manager Cloud Control as follows to check Performance.

L => Detect lock objects

SELECT B.Owner, B.Object_Name, A.Oracle_Username, A.OS_User_Name 

FROM gv$Locked_Object A, All_Objects B

WHERE A.Object_ID = B.Object_ID;

M => Check the SQL query consuming lot of resources ( CPU and Disk Resources ) 

elect * from (

select ss.sql_text,

a.SQL_ID, 

sum(CPU_TIME_DELTA), 

sum(DISK_READS_DELTA),

count(*)

from 

DBA_HIST_SQLSTAT a, dba_hist_snapshot s,v$sql ss

where

s.snap_id = a.snap_id and a.sql_id=ss.sql_id

and s.begin_interval_time > sysdate -1

group by 

ss.sql_text,a.SQL_ID

order by 

sum(CPU_TIME_DELTA) desc)

where rownum<20;

N => Check the usage of physical RAM and SGA – Paging or Swapping exist or not.

free -m

SQL> set linesize 150

SQL> set pagesize 150

SQL> select * from v$sgainfo;

Select * from v$sgastat;

O => Check Log Switch and Archivelog generation frequency.

select to_char(first_time,'YYYY-MON-DD') day,

to_char(sum(decode(to_char(first_time,'HH24'),'00',1,0)),'9999') "00",

to_char(sum(decode(to_char(first_time,'HH24'),'01',1,0)),'9999') "01",

to_char(sum(decode(to_char(first_time,'HH24'),'02',1,0)),'9999') "02",

to_char(sum(decode(to_char(first_time,'HH24'),'03',1,0)),'9999') "03",

to_char(sum(decode(to_char(first_time,'HH24'),'04',1,0)),'9999') "04",

to_char(sum(decode(to_char(first_time,'HH24'),'05',1,0)),'9999') "05",

to_char(sum(decode(to_char(first_time,'HH24'),'06',1,0)),'9999') "06",

to_char(sum(decode(to_char(first_time,'HH24'),'07',1,0)),'9999') "07",

to_char(sum(decode(to_char(first_time,'HH24'),'08',1,0)),'9999') "08",

to_char(sum(decode(to_char(first_time,'HH24'),'09',1,0)),'9999') "09",

to_char(sum(decode(to_char(first_time,'HH24'),'10',1,0)),'9999') "10",

to_char(sum(decode(to_char(first_time,'HH24'),'11',1,0)),'9999') "11",

to_char(sum(decode(to_char(first_time,'HH24'),'12',1,0)),'9999') "12",

to_char(sum(decode(to_char(first_time,'HH24'),'13',1,0)),'9999') "13",

to_char(sum(decode(to_char(first_time,'HH24'),'14',1,0)),'9999') "14",

to_char(sum(decode(to_char(first_time,'HH24'),'15',1,0)),'9999') "15",

to_char(sum(decode(to_char(first_time,'HH24'),'16',1,0)),'9999') "16",

to_char(sum(decode(to_char(first_time,'HH24'),'17',1,0)),'9999') "17",

to_char(sum(decode(to_char(first_time,'HH24'),'18',1,0)),'9999') "18",

to_char(sum(decode(to_char(first_time,'HH24'),'19',1,0)),'9999') "19",

to_char(sum(decode(to_char(first_time,'HH24'),'20',1,0)),'9999') "20",

to_char(sum(decode(to_char(first_time,'HH24'),'21',1,0)),'9999') "21",

to_char(sum(decode(to_char(first_time,'HH24'),'22',1,0)),'9999') "22",

to_char(sum(decode(to_char(first_time,'HH24'),'23',1,0)),'9999') "23"

from v$log_history group by to_char(first_time,'YYYY-MON-DD');