a newbie dba here..
select TABLESPACE_NAME,
sum(BYTES) Total_free_space,
max(BYTES) largest_free_extent
from dba_free_space
group by TABLESPACE_NAME
/
result output is attached .txt file.
the SYSTEM & USERS table space shows only <10 mb free space. Is it a bad sign? What I should do ?
I want to get the details of the SYS/SYSTEM users logon and Logoff's time.
Steps 1:
=======
SQL> SHOW PARAMETER AUDIT
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
audit_file_dest string C:ORACLEPRODUCT10.2.0ADMIN
DB10GADUMP
audit_sys_operations boolean FALSE
audit_trail string NONE
SQL>
Step 2:
=======
Set the Necessary parameters:
-----------------------------
alter system set audit_trail=db scope=spfile;
Step 3:
=======
Shutdown the DB
Step 4:
=======
Restart the DB
Step 5:
=======
For auditing the Session. Fire the below command.
AUDIT CREATE SESSION;
Step 6:
=======
select DISTINCT USERNAME,os_username,timestamp,logoff_time
from DBA_audit_session;
When I fire the above query, I couldn't get the SYS user's LOGOFF time. But for rest of the users, I am getting.
We are in the process of gaining some space in our database. We identified a tablespace that occupied around 400GB of space. The datas are required for us. Hence, we truncated (with drop storage) the tables, gathered statistics and shrinked the tables. After doing that we found the datafile occupied around 32GB of space. We tried to resize it to 5 GB and we got "ORA-03297: file contains used data beyond requested RESIZE value". We could see that size in dba_free_space against that tablespace. We would like to give back everything to OS.
We also tried exporting the tablespace without rows, dropped the tablespace and re-created and imported again. But the datafile grows to around 32G and we are unable to resize it.
We are sure that the tablespace has only the table definitions without data. But we do not know why is it occupying around 32G of space and we could see that size in dba_free_space. We would like to give back everything to OS. How can we do that?
In normal days size of archives generated in a day is 14-15GB. But since yesterday morning, almost 150GB of archives have been generated and are still getting generated(200MB every 1-2 minutes).
There was a sudden reboot of server yesterday morning. At that time there was heavy load of transactions on database. Can it be a reason that smon is still doing recovery? (I am not sure on this). Also, Undo tablespace is increased from 18 GB to 50 GB since yesterday (autoextend on).
Now we are running out of space for archive file system (can't delete them also until they are transferred to DR) Size of redo log is 200MB. This database supports around 2500 users.
performance wise I don't see any hit. Also wait events are normal. (only few db file sequential read) finding the query/session which are causing this much huge amount of archives?
I have table which has 240 columns.
Here is the list of column data type.
VARCHAR2(50)
TIMESTAMP(6)
VARCHAR2(25)
VARCHAR2(25)
NUMBER(15,2)
VARCHAR2(50)
NUMBER(1)
[code]....
The table has 64 partition.. When i count the table(select count(*) from table), i see close to 22 million records.
SQL> select (num_rows*avg_row_len)/1024/1024/1024 GB,num_rows,avg_row_len
2 from dba_tables
3 where table_name='TRX_TAB';
GB NUM_ROWS AVG_ROW_LEN
---------- ---------- -----------
74.9393936 21871585 3679
SQL>
It is supposed to take 75 GB. But this table is consuming 135 GB now. It is occupying 8 GB per day.
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.
I want to create system table space's extent management dictionary with the syntax:
CODEcreate database
logfile
group 1 ('/u01/app/oradata/anand/redo1a.log') size 100M,
group 2 ('/u01/app/oradata/anand/redo2a.log') size 100M,
group 3 ('/u01/app/oradata/anand/redo3a.log') size 100M
datafile '/u01/app/oradata/anand/system.dbf' size 400M extent management dictionary
sysaux datafile '/u01/app/oradata/anand/sysaux.dbf' size 300M
default temporary tablespace temp tempfile '/u01/app/oradata/anand/temp.dbf' size 50M
but it is giving error
ERROR at line 6:
ORA-25141: invalid EXTENT MANAGEMENT clause
how can I make system tablespace's extent management dictionary?
After importing my dump, i have noticed that ARGUMENT$ segment taken more than 9 GB out of my total SYSTEM table space.I belive ARGUMENT$ table is used only to store procedure/package parameter details. But I am not sure Why it has taken more space.
Is there any way we can reduce the SYSTEM table space? using with the below details?
Import Details:
--------------
1) Imported using IMP DP. List of parameters used are userid, logfile, dumpfile, directory, job_name and remap_schema.
2) Dump file size is 3GB
3) The below list will be no. of objects imported using my dump.
OBJECT_TYPE COUNT(1)
------------------- ----------
DATABASE LINK 1
FUNCTION 246
INDEX 4742
[code]...
4) The below list will be amount of space occupied by the segments in the SYSTEM.
col owner form a5 word wrap
col segment_name form a15 word wrap
col segment_type form a15 word wrap
select owner,segment_name,segment_type
,bytes/(1024*1024) size_m
[code]...
How to find the number of users logged, in a database level(Oracle), b'coz generally in OS level (Linux) , the command will be '$ users',
View 4 Replies View Relatedhow many default users available in oracle 9i version.
View 4 Replies View Relatedget the actual password for the database users. If we talk about the dba_users account we have password in the encrypted form how to decrypt them and get actual password.
View 6 Replies View Relatedselect username,account_status,default_tablespace from dba_users;
The ran the above query and it return 80 users but when i ran below query it shows just 14 rows.
select owner,sum(bytes)/(1024*1024) "GB" from dba_segments group by owner;how to get the size of all 80 users from database ?
will it be possible to create db_link between two operating system authenticated users belongs to different databases?
View 5 Replies View RelatedI heard that USERS tablespace should not contain any other application schema objects.
If the above statements is true , why it should not contain other schema objects ?
i want to transfer all users from server A to server B how can i do that along with their rights and password?
View 2 Replies View RelatedMy requirement is to disable access of sys user from all clients even they are providing correct password.
View 2 Replies View RelatedI want to compare two users on different databases, actaully there are two users one in user a on database a and another user b on database b they have same tables, and everytime when a table or object is created on user a (database a) i will take the table name ,procedure or any other object from user_objects based on ddl_created date and then i need to recreate the same on user b on database b, is there a way to find out tables which are not only created but also i need to check whether if there is any column added or any change in procedure or any other objects.Is there a way to generate the scripts based on list of objects selected from user_objects.
all i want is.
a)Find out the list of objects added along with creation scripts
b)find out the list of objects modified along with creation scripts.
how many users we can create in oracle 11g release 2 database. Is there any specific limit or parameter for that.
View 1 Replies View RelatedToday I see my system tablespace is 98%, 480 MB used. Why the system tablespace is so big?
View 5 Replies View RelatedIn my database ,the size of the system tablespace is 1024M.now i found its free space is 477.875M.
SQL> SELECT TABLESPACE_NAME,SUM(BYTES)/1024/1024 M FROM DBA_FREE_SPACE where tablespace_name = 'SYSTEM' GROUP BY TABLESPACE_NAME ;
TABLESPACE_NAME M
--------------- -------
SYSTEM 477.875
In system tablespace ,the max size segment is IDL_UB1$,it is 167M
SQL> SELECT SEGMENT_NAME, SX || 'M' "Size" FROM (SELECT SEGMENT_NAME,SUM(BYTES)/1024/1024 SX FROM DBA_SEGMENTS WHERE TABLESPACE_NAME = 'SYSTEM' GROUP BY SEGMENT_NAME) WHERE SX > 100 ORDER BY SX DESC;
SEGMENT_NAME Size
------------- -----
IDL_UB1$ 167M
QUESTION: what's the table IDL_UB1$ used for ?
In My database rollback segment space is not releasing space even though, there is no transaction is using RBS. RBS tablespace size is around 70GB. Unfortunately still our environment is running in 9i due to application code
SQL> show parameter undo
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
undo_management string MANUAL
undo_retention integer 1800
undo_suppress_errors boolean FALSE
undo_tablespace
Is there any way I can calculate percentage of space used in a block.Eg if a table size is 100 blocks,How Can I check the percentage of used space in block.
View 6 Replies View Relatedfor some reason,i want to know which data block contains free space,or which table/index contains free space.
View 6 Replies View Related am using Oracle 10.2.0.4 on win 2008 server SP2. I would like to know if we can set the Segment Space Management feature to AUTO for RBS and Temporary tablespaces. As the data is not permanent in these tablespaces, will it manage automatically?
Presently its Segment Space Mgmt is manual for System, RBS, Temporary tablespaces.
In my drive E: I'll have a space issue soon because one file is taking all space. SYSTEM01. DBF size is around 25GB. I want to know if I delete some data in my database I'll gain space.
View 2 Replies View RelatedIn one of our Data warehousing DB, even though, all the tablespaces' space should keep on at least 1 month, but our leader want us to estimate how much space can free up with db method.
I have referenced
<Administrator Guide> - Reclaiming Wasted Space
[URL].....
I have several questions on reclaim space:
1. It seems that segment adviser give a really cool view to know which segment should be shrink and how much size will free up after shrink. But actually, this need a very a job or manually do this. I have once heard about some query from can estimate this :
A script from MOS, but actually I found this it's not very accurate with segment adviser. This script should report the real space the table occupy, but after shrink space, the space doesn't free up.
SELECT TABLE_NAME , (BLOCKS *8192 / 1024/1024 ) - (NUM_ROWS*AVG_ROW_LEN/1024/1024)
"Data lower than HWM in MB" FROM DBA_TABLES WHERE UPPER(owner) =UPPER('&OWNER') order by 2 desc;
Also there is a script evaluate the tablespace fragments from some people:
SELECT tablespace_name,
SQRT (MAX (blocks) / SUM (blocks))
* (100 / SQRT (SQRT (COUNT (blocks))))
FSFI
FROM dba_free_space
GROUP BY tablespace_name
ORDER BY 1;
if the value is very low, we can coalesce the tablespace. But after I coalesce the tablespace, I can't see any space free up.
From <Concepts>:
Quote:Coalescing extents is not necessary in
locally managed tablespaces, because all contiguous free space is available for
allocation to a new extent regardless of whether it was reclaimed from one or more
extents.
2. is there any good way to estimate how much space we should free up? ( After free up the space , dba_free_space should see this result)
Application team requested hosting team to add some space to tablespace as it was exceeding 80% used.Now the hosting team have added the space as per recommendation and the application team wants us to verify if the space was added. How to check the space was added in GB to list of tablesapces ?
View 5 Replies View RelatedI created manually a database in 10g, after succesfully creating the dB, I created a single user re: LAMS. Now, I noticed that my USERS tablespace is currently at a 99.96% usage:
SQL> @check_space_used.sql
Monday, March 14, 2011 2:46:22 PM SGT
TABLESPACE_NAME TOTALSPACE TOTALBYTES PERCENTUSED
------------------------------ -------------------- -------------------- --------------------
SYSTEM 1073741824 239599616 23
UNDO 268435456 16449536 7
[code]...
There is a scenario: I dropped all objects of 3 users and dropped other 2 users and then I checked the space from dba_segments it reflects decreased space which is perfectly fine. Problem is that when I checked the space of physical datafile on disk it remains same. How can I restore or shrink or regained the space after dropping objects and users to maintain my storage requirements.
View 1 Replies View Related