Release Tablespace Unused Space
Nov 18, 2011
I have a problem...
I created a tablespace called my_ts:
CODECREATE TABLESPACE my_ts DATAFILE 'C:\Oracle\oradata\db\my_ts.dbf' SIZE 5M EXTENT MANAGEMENT LOCAL UNIFORM SIZE 128K;
ALTER DATABASE DATAFILE 'C:\Oracle\oradata\db\my_ts.dbf' AUTOEXTEND ON;
Its was sucessfully created and my_ts.dbf file has 5MB
charging with data...
CODEcreate table big_table tablespace my_ts as select * from dba_objects;
select * from big_table;
begin
for i in 1..10 loop
insert into big_table select * from dba_objects;
end loop;
end;
Now the my_ts.dbf file has 90MB
Now I want drop this table:
CODEdrop table big_table purge;
And my tablespace file still has 90MB.
I already tried to restart the database but doesn't works...
how can I reduce the size to the original (5MB)?
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Feb 15, 2012
How to delete flashback log and to release the space?
I guess that it maybe like archive log ,it can release the space using RMAN.But when i try a test ,it fail.
SQL> STARTUP MOUNT;
SQL> ALTER DATABASE FLASHBACK OFF;
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Jul 13, 2013
We have EBS database with version 11.1.0.7 . Our tablespace is not releasing space ,as the below query show that TEM2 is using only 3 g .
SELECT A.tablespace_name tablespace, D.mb_total, SUM (A.used_blocks * D.block_size) / 1024 / 1024 mb_used, D.mb_total - SUM (A.used_blocks * D.block_size) / 1024 / 1024 mb_freeFROM v$sort_segment A, ( SELECT B.name, C.block_size, SUM (C.bytes) / 1024 / 1024 mb_total FROM v$tablespace B, v$tempfile C WHERE B.ts#= C.ts# GROUP BY B.name, C.block_size ) DWHERE A.tablespace_name = D.nameGROUP by A.tablespace_name,
[Code]....
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Sep 3, 2012
We are using a GTT table to store the summarize data and display it on same screen(10g 10.2.0.5). Now we are facing temporary tablespace space issue very frequently as our client do not enable the auto extend on for temp table space. We have analyzed the AWR and came to know that there are 900000 inserts per hour on an average. Client DBA Claims that there are sessions(1or 2) which inserts the data in temporary table continuously for 2-3 days.
According to him one session is running from 28th Aug and problem comes on 2nd Sep and after killing the problematic session the application will work fine. Generally this problems come on weekend. I have discussed with our dev team and as per them there is no session leakage issue.
following is the insert statement:
INSERT INTO DT_CA_STNDALN_DETAILS_TMP (ORG_ID,BA_PRODTYPE_ID,MAX
TENOR,GROSSLIMIT,GROSS_UTILISATION,HAS_MDR,HAS_CLUSTER,SIGN_IN
D,GROSS_AVAILABILITY,COLLATERAL,NET_UTILISATION,DT_CA_STNDALN_DE
TAILS_TMP_VER,DM_LSTUPDDT,NET_AVAILABILITY) VALUES (:1,:2,:3,:4,
:5,:6,:7,:8,:9,:10,:11,:12,sysdate,:13) ;
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Aug 9, 2013
I know this has been done to death, but I wanted to just go over what I do when OEM alerts me to a tablespace running out of space.First, I check the free space of the tablespace using this query:
SET LINESIZE 100COLUMN TABLESPACE FORMAT A15select t.tablespace, t.totalspace as " Totalspace(MB)",round((t.totalspace-fs.freespace),2) as "Used Space(MB)",fs.freespace as "Freespace(MB)",round(((t.totalspace-fs.freespace)/t.totalspace)*100,2) as "% Used",round((fs.freespace/t.totalspace)*100,2) as "% Free"from(select round(sum(d.bytes)/(1024*1024)) as totalspace,
[code]....
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Aug 27, 2012
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
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Jan 9, 2012
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 ?
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Jan 4, 2012
I just want to know whether we have to pre-allocate space for temporary tablespaces?
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Nov 17, 2011
I am getting temp tablespace error "ORA-01652: unable to extend temp segment by 128 in tablespace TEMP" for the following code.
SELECT /*+ USE_NL ( vd1 ,vd2 ,vd3 ) leading ( vd1 ,vd2 ,vd3 , tvd) */ vd1.vendor_record_seq_no,
tvr.checksum, tvr.rownumber, tvr.transaction_type, 'U'
FROM vendor_data vd1, vendor_data vd2, vendor_data vd3,
(SELECT rownumber, MAX (DECODE (control_column_seq_no, 91150, original_value, NULL)) AS value1,
[code]...
Right now used tables has the following number of records-
SELECT COUNT(*) FROM vendor_data --292890442
SELECT COUNT(*) FROM temp_vendor_data --0
SELECT COUNT(*) FROM temp_vendor_record --0
This query is part of an application, but consuming too much of temporary tablespace (68 GB allocated). I found it out by using query below:
select * from v$session a, v$sql b
where a.sql_id=b.sql_id
and status = 'ACTIVE'
I am not sure, why this problem is occuring.
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Sep 6, 2011
Mistakenly I added lot of datafiles with autextend on option.. I realized later and then tried to resize the datafiles to a minumum space but got the below error
ORA-03214: File Size specified is smaller than minimum required.
How to resolve this problem to reclain the space back?
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Jun 9, 2011
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.
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Aug 16, 2012
We are using Oracle 10g and have 10 tablespaces defined for our Database which have 108 tables. Size of 108 tables is around 251 MB as seen during importing the dump. While creating these 10 tablespaces I used below parameters for allocation of space
SIZE 1M REUSE AUTOEXTEND ON NEXT 1M MAXSIZE 1M;
which set the initial space for 10 tablespaces to around 1032Kb each. Now my Question is after importing the dump , how the disk space for 10 tablespaces increases to 398 MB in total ?
Is there any relation of Tablespace disk space and Actual Data present in the tables ?
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Nov 3, 2008
I have read and used the AWR script (mentioned in the page Finding unused index for finding unused customised (Z) indexes in our SAP system using oracle 10.2.0.2 as the SAP database.
But this returns no rows. Is there any precondition? I want to know how much / many times the indexes are used...We are smelling that lot of unused index are there in the database.
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Jul 30, 2010
A way to identify variables declared in a procedure that are not being used? I had thought plsql_warnings might do the trick but it does not.
I have inherited a lot of code that was ill conceived and unfortunately have started to notice a trend.
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May 7, 2013
I made an Index Unused while doing some update by using sql developer right click 'Make unusealbe'. Now I need make it as useable.
marking as Usable. I have checked in all_indexes state is show as 'UNUSABLE'.
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Jan 21, 2003
I have been trying to drop an unused column in a partitioned table, and the number of records stored in this unused column was very high. I kept on running into errors as follows:
ORA-01562: failed to extend rollback segment number 10
ORA-01650: unable to extend rollback segment R09 by 256 in tablespace RBS
I tried to "SET TRANSACTION USE ROLLBACK SEGMENT <name>" with a larger rollback segment, but it still did not work. Can I drop the "unused column" from each partition instead?
How to apply that? Or, what are my options besides increasing the size of the rollback segment?
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Jul 13, 2013
If you mark a column unused, is there any way to project it? I know the docs say you can't, but as the data is still there I would have thought it should be possible. I can see the column in dba_tab_cols, but the obvious ways of making it usable don't work:
orcl> select column_name,hidden_column from user_tab_cols where table_name='DEPT';
COLUMN_NAME HID
------------------------------ ---
LOC NO
DNAME NO
DEPTNO NO
orcl> alter table dept set unused column loc;
Table altered.
orcl> select column_name,hidden_column from user_tab_cols where table_name='DEPT';
COLUMN_NAME HID
------------------------------ ---
SYS_C00003_13071316:19:02$ YES
DNAME NO
DEPTNO NO
orcl> select "SYS_C00003_13071316:19:02$" from dept;
select "SYS_C00003_13071316:19:02$" from dept
*
ERROR at line 1:
ORA-00904: "SYS_C00003_13071316:19:02$": invalid identifier
orcl> alter table dept rename column "SYS_C00003_13071316:19:02$"
2 to loc;
alter table dept rename column "SYS_C00003_13071316:19:02$"
*
ERROR at line 1:ORA-00904: "SYS_C00003_13071316:19:02$": invalid identifier
orcl> alter table dept modify "SYS_C00003_13071316:19:02$"
2 visible;
alter table dept modify "SYS_C00003_13071316:19:02$"
*
ERROR at line 1: ORA-00904: "SYS_C00003_13071316:19:02$": invalid identifier
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Aug 28, 2012
I am in the task of clean up of tables. I need to find the list unused tables and procedures. Is there any way where i can find when was the last time the table queried?
Give sql query to find the list of unused tables and procedures.
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Nov 14, 2013
SQL> SELECT * FROM DBA_UNUSED_COL_TABS; OWNER TABLE_NAME COUNT ------------------------------ ------------------------------ ---------- CRIS_WAREHOUSE_USER F_TRADING_COLLATERAL_SR 1 SQL> SELECT * FROM DBA_UNUSED_COL_TABS; OWNER TABLE_NAME COUNT ------------------------------ ------------------------------ ---------- CRIS_WAREHOUSE_USER F_TRADING_COLLATERAL_SR 1 SQL> alter table F_TRADING_COLLATERAL_SR drop unused columns; Table altered. SQL> SELECT * FROM DBA_UNUSED_COL_TABS; OWNER TABLE_NAME COUNT ------------------------------ ------------------------------ ---------- CRIS_WAREHOUSE_USER F_TRADING_COLLATERAL_SR 1 SQL>
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Jul 1, 2013
I want to replace double space with single space and also remove junk characters from the data. How can I do that?
CREATE TABLE test07013
(
NAME VARCHAR2(50)
);
INSERT INTO VALUES ('WARREN,'); -- REMOVE ","
INSERT INTO VALUES ('CLARK H'); -- REPLACE "DOUBLE SPACE" WITH "SINGLE SPACE"
INSERT INTO VALUES ('BRYAN A.'); -- REMOVE "."
INSERT INTO VALUES ('CARTER JR. ROBERT'); -- REMOVE "."," AND REPLACE "DOUBLE SPACE" WITH "SINGLE SPACE"
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Feb 9, 2012
what happens if you mark a column unused in a compressed table and then alter table drop unused columns? We had a customer do this and Oracle threw a -3113 (end of communication) error. They did a system restore before contacting us and blew away any evidence in alert logs/trace files. They did this on a 400GB compressed table.
My question is, when you drop an unused column off a compressed table, does it uncompress? Where does this uncompression occur? In the instances default tablespace? In the tablespace configured for the table?
Basically, we are wondering whether the error was due to poor error-handling of the system running out of space during decompression and trying to see if we can reproduce it. This was on an 11.1.0.7 system.
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Nov 9, 2011
is there a way to find out which unused columns in oracle?
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Oct 3, 2012
Just now sysaux resized to 600m from 250m >>
Sysaux Tablespace is running low. WE SET AWR RETENTION TIME=60 DAYS. WE ARE NOT INTEREST TO EXTEND SYSAUX TABLESPACE SIZE.
Usually we take AWR weekly once. Some times we did ADDM report and ASH.
CODEsql>select TABLESPACE_NAME, FILE_NAME, BYTES/(1024*1024), AUTOEXTENSIBLE, MAXBYTES/(1024*1024) from dba_data_files where tablespace_name = 'SYSAUX';
TABLESPACE_NAME FILE_NAME BYTES/(1024*1024) AUT MAXBYTES/(1024*1024)
SYSAUX /u01/app/oracle/oradata/test/sysaux01.dbf 600 YES 32767.9844
CODEsql> @SCRIPT.SQ
TABLESPACE TOTAL_SPACE(MB) USED_SPACE(MB) FREE_SPACE(MB) % Used % Free
SYSAUX 600 248 352 41.33 58.67
1. What's the best SOLUTION ?
2. Can i shrink sysaux tablespace ?
3. I think , The size for all occupants in sysaux tablespace is less than 200 MB => how to find actual content of sysaux tablespace ?
4. What could be the reason for growth? Is there any way to free the space from sysaux table space?
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Apr 12, 2010
How to Release Lock on table ? ( without killing session )
create table x ( a number);
insert into x(a) values (1);
Lets lock table.
declare
cursor c is select * from x for update;
begin
open c ;
end;
[code]....
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May 30, 2013
We are using the following statement to obtain a row lock in a table in the database(ORACLE 10G), SELECT * FROM {TABLE_NAME} WHERE ID = 1 for update and if we succeed grabbing the row lock we will continue to issue a update statement every 30 seconds to preserve the lock as far as possible. here is the update statement to preserve the lock,
UPDATE {TABLE_NAME} SET time = ? WHERE ID = 1.
As you see more longer we keep holding the row lock , more update statements are submitted in the pending transaction. In normal case our application can grab the exclusive row lock and works for a long time,however sometimes a connection reset exception is thrown and our application will close the connection(I assume the pending transaction will be rolled back by the database) and exit the JVM. Since other applications will keep trying to grab the same row lock to become the master role, we expect one of them can succeed but they are all failed because the database has not released the row lock as expected. how and when the row lock can get released in our use case?
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May 27, 2012
assuption is that when we truncate the partition it immediatly release the allocatd storage.i have just tested the scenario , but still i can see that table size is same even after truncating the partition( which have around 25% of the data)
alter table test truncate partition t1p3 update indexes ;
OR
alter table test truncate partition t1p3 drop storage update indexes ; to see the table size:
SELECT owner, table_name, TRUNC(sum(bytes) / 1024 / 1024) Meg
FROM (SELECT segment_name table_name, owner, bytes
FROM dba_segments
WHERE segment_type = 'TABLE'
UNION ALL
[code]...
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Nov 29, 2011
am trying to downgrade my oracle database 10g release 10.2.0.2.0 to 10.2.0.1.0the reason for this is that i had to copy /oracle_home/bin utilities from 10.2.0.1 to 10.2.0.2 because of this most utilities like rman,dbca were not working.
i think i need to downgrade my oracle database 10g release to 10.2.0.1.0 right?i read some oracle documentations of database downgrade instruciting me to
>take full backup of oracle DB
>ORACLE_HOME/bin/emctl stop dbconsole
SQL> STARTUP DOWNGRADE
DROP USER sysman CASCADE;
>SQL> SPOOL downgrade.log
[code]....
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Nov 24, 2010
Share 11g Release 2 Grid infrastructure and RAC installation experience on Sun SPARC. Any documentation which provide complete information from server setup to database setup.
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Sep 4, 2013
Ours is Oracle 11.2.0.2.0 Db 4 instances RAC on Unix AIX OS.Since long we are facing problem that CPU utilization reached 100% and reboot is required alteast once or twice a month.On seeing the Events Logs we find that the Event "CURSOR PIN S WAIT FOR X" is consuming a lot of waits.
On analyzing i came to know that we are firing same query from Application 15 to 20 lack times for which a lot of Mutex keeps spining for getting Shared Mode and consumes a large amount of CPU.
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Jul 24, 2013
I was prompted by an error in the middle of Oracle 11g Release 2 installation and unable to continue further.
The error was file not found e:product11.2.0.dbhome_3oc4jj2eeoc4j_applicationsapplications em.ear.
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