What Influence PCTFREE On Shrink
Oct 2, 2013What Influence PCTFREE on Shrink?.
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SQL & PL/SQL :: How To Alter PCTFREE
Oct 1, 2010I have a table Employee which gets updated and Inserted very frequently. Wanted to increase the PCTFREE value for this table
select table_name,pct_free,chain_cnt from user_tables
where table_name='EMPLOYEE'
EMPLOYEE NULL 0
is the output. I altered the pctfree like below
ALTER TABLE EMPLOYEE PCTFREE 30
and I can see Table altered but the value is not reflecting in above command again. Where else I should alter the value and cross check that value is changed.
SQL & PL/SQL :: How To Change Pctfree Of Partitioned Index
Oct 3, 2011I have a partitioned index with a pctfree of 10 .I want to change pctfree to 20.How to change?
I tried this
alter index fnsonli.IG01PK rebuild partition SYS_P245 pctfree 20 ;
alter index fnsonli.IG01PK rebuild partition SYS_P245 pctfree 20
*
ERROR at line 1:ORA-14185: incorrect physical attribute specified for this index partition
Exadata :: Compress Sub Partition With Pctfree
Nov 12, 2012How to compress sub partition on exadata, using 'for query high' and pctfree 10 options? I used this statement, but I get only ORA-14160:this physical attribute may not be specified for a table subpartition.
alter table table_name move subpartition subpartition_name PCTFREE 10 compress for query high;
Syntax For Setting Pctfree And Pct Used For A Specific Table?
Apr 25, 2013tell the syntax for setting pctfree and pct used for a specific table.
View 4 Replies View RelatedShrink Tables - HWM?
Aug 22, 2012if the command is successful:>alter table my_table shrink;The segment will be defragmented and the High Water Mark will be moved.But what is the importance of the HWM?
Whats the difference between commands?
>alter table my_table shrink; -- move HWM
>alter table my_table shrink compact; -- not move HWV
How To Shrink A Datafile
Feb 13, 2013Database Version :11gR2
I have a tablespace which has around 32gb space consumed. But if i check the used space then its only 16GB. When i tried to resize the datafile it throws the error
ORA-03297: file contains used data beyond requested RESIZE valueAs per my understanding there are not continous blocks which are there in datafile due to fragmentation may be and there by not able to resize it. If i export the tablespace using datapump and reimport this will release the space.
But i want to know if there are any alternative ways to do the same.
How To Shrink Table Space
Jun 11, 2013I am trying to Shrink Table space using the following SQl. As we are dropping large datasets. Later i am trying to shrink the table space
Alter Tablespace table_name Shrink Space Keep 20M;
Is this the best way to do in oracle 11G
How To Shrink Tablespace Index
Mar 10, 2011Well, I have a oracle database 10g and the tablespace INDX was getting up to 32 GB size. Now I added second datafile to the space, but can I shrink this space? In my view this space is responsible for indexes, right? There is a command to rebuild the indexes or there's another trick?
View 1 Replies View RelatedServer Administration :: Shrink Tablespace
Jun 7, 2010I have a tablespace with 5GB size, data in the tablespace is 4.8GB. if i want to shrink the tablespace then much size could be shrinked.
View 4 Replies View RelatedServer Administration :: Table Cannot Shrink?
Sep 26, 2011 My table can not shrink, why?
SQL> Alter Table tb_hxl_user Shrink Space Cascade;
Alter Table tb_hxl_user Shrink Space Cascade
*
ERROR at line 1:
ORA-10635: Invalid segment or tablespace type
SQL> desc tb_hxl_user;
Name Null? Type
----------------------------------------- -------- ----------------------------
STATEDATE NOT NULL DATE
USERNUMBER NOT NULL VARCHAR2(13)
PROVCODE NOT NULL NUMBER
[code]...
Use Shrink To Reclaim Space On Some Tables
Sep 4, 2012I am trying to use shrink to reclaim space on some tables:
-First of all i am using this query to verify which tables are eligible to shrink:
select segment_owner, segment_name, segment_type,
trunc(((allocated_space)/1024)/1024) "aloc",
trunc(((used_space)/1024)/1024) "used" ,
trunc(((reclaimable_space)/1024)/1024) "reclaim"
from table(DBMS_SPACE.ASA_RECOMMENDATIONS()) where segment_owner='&owner' and segment_type='TABLE' order by reclaimable_space desc;
I'll show the toP1 below:
SEGMENT_OWNER SEGMENT_NAME SEGMENT_TYPE aloc used reclaim
-------------------------- --------------------------- ------------------ ---------------- --------
USR_CONTROLFIN CFI_PORTADOR TABLE 744 0 743
Fine, then i shrinked it:
10:06:39 brunos@gf> alter table usr_controlfin.cfi_portador enable row movement;
Table altered
Executed in 0,047 seconds
10:06:57 brunos@gf> alter table usr_controlfin.
Server Administration :: How To Shrink Table Size
Jan 4, 2012I have a table: desc STG_XML
Name Null Type
------------------------------ -------- ------------------------
ENTITY_ID NOT NULL VARCHAR2(100 CHAR)
ENTITY_TYPE_ID NOT NULL NUMBER
SOURCE_ID NOT NULL VARCHAR2(512 CHAR)
XML_SCHEMA_ID NOT NULL NUMBER
JOB_ID NOT NULL NUMBER
FINGERPRINT NOT NULL VARCHAR2(100 CHAR)
ENTITY_XML_DATA CLOB()
ARCHIVED NUMBER(1)
CREATION_DATE TIMESTAMP(6)
MODIFICATION_DATE TIMESTAMP(6)
ARCHIVING_DATE TIMESTAMP(6)
CREATED_BY VARCHAR2(50 CHAR)
MODIFIED_BY VARCHAR2(50 CHAR)
The problem is that the data of the table are 40GB while on the DB the table holds 400GB! How can I shrink and reuse that space except from drop/recreate and drop/import?
The table has no initial data, so that I can play with the INITIAL parameter. Data are inserted, updated and deleted all the time. I have run DBMS_ADVISOR which recommended to SHRINK table. I have performed the shrink :
alter table STG_XML shrink space COMPACT;
but I haven't gained any space.
Server Administration :: Shrink Tablespace Of 100gb Which Has Objects
Jul 6, 2010i am trying to shrink tablespace of 100gb which has objects.
i tried coalesce,then i try to shrink and also tried to resize the datafile with no luck
error message can't resize
Performance Tuning :: Difference Between Move And Shrink Table?
Jul 22, 2011What is different between move table and shrink table?
View 2 Replies View RelatedAlter Index Shrink Space - Table Lock
Oct 18, 2012alter index test_idx1 shrink space;
I've heard that this statement causes a table lock but cant find any information on this.if it is so, is it a write lock or also a read lock of the table?
Does Shrink And Move Both Adjust The High Water Mark
Nov 4, 2013I am trying to discern the difference between Shrink and Move and their impact on the High Water Mark of a table.
My understanding is that MOVE in effect rewrites every row of a table ( hence why it can deal with row chaining ) whereas SHRINK basically moves existing rows in a table 'down' the table into any available free space. This is why MOVE takes a table lock whereas SHRINK takes a row lock. What I am trying to discern is - does MOVE and SHRINK effect the high water mark and does both reallocate space and give it back to free space for the tablespace ? I believe MOVE does reduce the HWM and give freed space back to the tablespace. I am not so sure about SHRINK.
Server Administration :: Unable To Calculate Datafile Shrink Possible Size
Jul 28, 2011I need to resize my datafile as i have allocated more space and need to reduce ( i.e.data load completed now). my tablespace is having 11.74 gb free space now. it has 3 datafile.
TABLESPACE TOTAL USED FREE PCT_FREE LARGEST FRAGMENTS
------------------------ ---------- ---------- ---------- ---------- ---------- ----------
CFC_DATA 150528 138780.6 11747.4 7.80412946 1251 992
TABLESPACE_NAME FILE_ID FILE_NAME Size(MB)
------------------ ---------- ------------------------------------------------------- ----------
CFC_DATA 71 +DATA/dedw/datafile/cfc_data.4074.731085435 65535.9688
CFC_DATA 334 +DATA/dedw/datafile/cfc_data.4473.757566557 20480
CFC_DATA 1710 +DATA/dedw/datafile/cfc_data.2012.728095695 64512I used below script to find out HWM in order to resize the datafile.
db_block_size is 16KB.
[code]....
in TOAD, we have an option, that is "Minimum size" button against each datafile.. Need the SQL which is running behind when we press this button from TOAD ?
Server Administration :: Possible To Run SHRINK SPACE Against Table With Function Based Index
Jun 27, 2013It 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.