How to find out the database is using Cost based analyzer?
Currently database is set to ALL_ROWS.
SQL> show parameter optimizer_mode
NAME TYPE VALUE
------------------------------------ ----------- -----------
optimizer_mode string ALL_ROWS
SQL>
SQL>
what is oracle Cost-Based Optimizer? Any material easy to follow?
View 3 Replies View RelatedI am trying to find the unix process for one of my application in the database but I am unable to view the same. To simulate, I did the following.
1. My database runs on different server.
2. I invoked "sqlplus" from another unix box to login to the database.
3. I found that the process id (ps -ef |grep sqlplus).
4. When I execute the below mentioned query it does not display the process id that I am looking for. But the osuser, username, program and machine details are correct. How can I know the process details from the database?
SELECT SYS.GV_$SESSION.OSUSER, SYS.GV_$SESSION.USERNAME, SYS.GV_$PROCESS.SPID,
SYS.GV_$SESSION.MACHINE, SYS.GV_$SESSION.PROGRAM,
SYS.GV_$PROCESS.PROGRAM ,SYS.GV_$SESSION.SQL_ID
FROM
SYS.GV_$PROCESS, SYS.GV_$SESSION
WHERE
SYS.GV_$PROCESS.ADDR=SYS.GV_$SESSION.PADDR and SYS.GV_$SESSION.USERNAME='TEST'
and SYS.GV_$SESSION.MACHINE like '%hostname%'
I am having database A and database B and I am inserting into database b by selecting some records from database a using db link.Is there any way to find whether database link is being used?
View 6 Replies View Relatedhow will you find your db is Corrupted or crashed. how will u recover it.
View 2 Replies View Relatedfindout and to fill up the excel which lists down the Database schemas and states whether they have in active / or not.
Active state may be determined whether it has been used for the last 3 months or so. The last updated time may be a good indicator of the same.
How to find out list of DB_LINKS that uses user account in database ?
View 9 Replies View Relatedwhen we ran SELECT statement against CUBE, we got below wait event: resmgr: cpu quantum.Further, we checked below 2 parameters :
NAME VALUE
------------------------- --------------------------------------------------
resource_limit TRUE
resource_manager_plan SCHEDULER[0x12B943C]:DEFAULT_MAINTENANCE_PLAN
[code]....
It has been found that these sessions did not get enough CPU to process the request. how to find out how many CPU has been allocated to this database ?
> uname -a
Linux dukedmts03db02.corp.cox.com 2.6.18-128.1.16.0.1.el5 #1 SMP Tue Jun 30 16:48:30 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
how to analyze how much % of CPU being utilized for a specific session ?
Is there a way to find when was a database role created and who has created?
View 5 Replies View RelatedWe performed image copy of production Oracle server (OS and instances) to a backup server. After a few weeks, we try to restore a latest Oracle database backup from production server to backup server. As we know, Oracle instance must be unique on the network.
Even we log on to backup server and bring up the instance, I think that still point to production instance since all init file, TNSNAMES.ora and listener file are still same. If we restore the database, we will end up bring down the production instance and restore on top of productions. How to change instance name on backup server including TNSNAMES, sqlnet, listener files in order for us to restore Oracle database from production to backup server?
I am getting ORA-01652 temp space issue.I read several posts before posting this and no luck.We are submitting the job from java web based UI where it builds dynamic sql to submit the job.The issue is not repeatable for the same input parameters i.e for the same sql.Some times it will run just fine with out issues for the same input params and sql.
Only way I can reproduce the issue when i submit the job twice and some times,both fails and some times one success and one fail, but not both success any time.The job usually returns few millions of records and takes about 1.5 hrs to run.
I tried to extract the generated sql and run from pl/sql developer from two different sessionsat the same time and it will just run with out issues in both sessions. I repeated thiscouple of times and success every time. Only issues when i submit from UI. Thereseems some thing going in the java code the way it submits, but not able to figure out.
We have plenty of temp space 300G. We monitored the temp space and it only takes about 4G whenit ran with out issues. We also monitored when the job fails as it keeps growing till it hit300GB and throws the table space error.We are using 11G version. Year ago we migrated from 10 to 11. But when the app developed, it is 9g.
How to check for the increment of a space of the tablespace based on the particular table. (i.e.) Say a scenario, if am trying to load the data for a particular table, for first I loaded some 10000 records and then again loading 50000 records ,so based on the icrement of the reocrds the tablespace size also increases gradually . so for this scenario how to monitor the increment of the space.
View 13 Replies View RelatedIt is not possible to run SHRINK SPACE against a table with a function based index. This is documented, and I've tested on the current release. I've reverse engineered it a bit, and the issue is in fact that you cannot SHRINK SPACE if there is an index on a virtual column:SQL> SQL> create table t1(c1 number, c2 as (c1*2)) segment creation immediate;
Table created.
SQL> alter table t1 enable row movement;
Table altered.
SQL> alter table t1 shrink space;
Table altered.
SQL> create index i1 on t1(c2);
Index created.
SQL> alter table t1 shrink space;
alter table t1 shrink space
ERROR at line 1: ORA-10631: SHRINK clause should not be specified for this object.
is there a way to find out which unused columns in oracle?
View 8 Replies View Relatedhow to find a table is updated and when the table is updated.
View 1 Replies View RelatedWe need to find when any datafile was resized ( if at all)in a tablespace. Actually, by noting the created date from v$datafile , we used to know the data growth in a tablespace. Now as the number of datafiles have increased, we want to resize them. This diagnostinc have to be done without changing/adding anything in DB.
View 12 Replies View Relatedwhere i can find an alert log errors so whenever they occur in my RAC so i can comprehend them very well. I am trying to know that what can be the errors when u have RAC with ASM and SAN .
View 3 Replies View RelatedI would like to know about this Buzz around the High and Low parameter values in Statspack analyzer. How come you decide a particular parameter value is high or low. Is there any bench mark given by oracle on basis of which Statspack analyzer make any decision.
View 3 Replies View RelatedI can not find the sql plan for insert statement,why?
Select sql_text From v$sql a
Where a.SQL_ID = '0yungrk19a277';
-------------------------------
INSERT INTO OS_USERBILL_ACTV_READ_MON_DT
(MONTHNO, MAILCODE, OPERTYPE, PROVCODE, AREACODE, DAY_TOTALCOUNT, TOTALCOUNT,
CREATETIME, MODIFYTIME, SENDER_TYPE, SENDER_DOMAIN)
VALUES
(:B9 , :B1 , :B2 , :B3 , :B4 , :B5 , :B6 , SYSDATE, SYSDATE, :B7 , :B8 )
[code]....
Is there any way to find the last run duration of a job which was scheduled using DBMS_JOB?
View 3 Replies View RelatedHow to find the base table of a view,such as a view:
create or replace view vw_test as select * from tb_test;
Is there dic view to get the base table of view?
Would like to know, how to find the size of individual folder in ASM 10g !
Also I am not able to find the PATH/name of the raw devices in ASM 10g !
I am getting below ORA-01555 error in alert log everyday.
ORA-01555 caused by SQL statement below (SCN: 0x09ad.86a4562a):
Sat Jan 21 08:39:45 2012
SELECT (NVL(MAX(BLOCK_ID + BLOCKS ),0) * :b1 ) / 1024
FROM DBA_EXTENTS WHERE TABLESPACE_NAME = :b2 AND FILE_ID = :b3
I cannot able to find the sql_id here. So how can I find from which process or session this query is firing? before increasing the undo size, I need to analyze as why it is occuring?
undo_management string MANUAL
undo_retention integer 900
undo_suppress_errors boolean FALSE
undo_tablespace string
How to find which table or Index needs to be reorg..??
IS there any Query!!!.
post some script which will find out the used space of a specific datafile.
View 5 Replies View RelatedOracle Enterprise Manager 11g, navigating to the Performance tab for our test database. The "SQL Performance Analyzer" link is not apparent (as is all the other links).
I checked the "setup", in particular, the Management Pack Access ... all of these have checks by them ...
Database Change Management Pack
Database Configuration Management Pack
Database Diagnostics Pack
Data Masking Pack
Database Tuning Pack
Provisioning Pack
Pack Access Agreed.
Also, checked the value of the "control_management_pack_access" which reads "DIAGNOSTIC+TUNING"
How to get the "SQL Performance Analyzer" link enabled? Apparently, according to one of my colleagues, they used it about a month ago, so I don't know what could have happened between then and now.
How to find the sid from v$session of my current session.
I want to ask:
Let say I have open 10 TOAD session and only in one toad session i have fired a sql query ( the rest 9 session are just blank), then the rest 9 status are in active status. Now, how i can figure out which sid ( from v$session ) belongs to which session as all the 9 session having nothing to run.
Quote: My main intention is to find out the current session sid as soon as it make connection with DB.
what are ASMlib devices and how to find the group permission of it ?
View 1 Replies View RelatedHow I can find the hostname for an oracle session id?
View 4 Replies View RelatedI am looking for a script to find the tbs usage including datafiles. Tablespaces Datafile Size Used Free Used% Free% Max MB
Need all the data in MB and all the datafile space in every tablespace.I have searched internet,but couldn't find this type of format.
