ALTER table move & shrink space

Similar Questions

• ALTER table move online in an encrypted tablespace

  Hello

  Our DBA want to put all our data in encrypted storage.

  Once they create encrypted tablespaces, we will have to do «alter table move online...» "orders for encrypted storage space around the tables.

  Has anyone here done already?   Keeps the table moved really 'on-line' (available at query/insert/update) during the move?  Or will we have to wait some time stop/downtime while the tables are moved?
  What about the tables with long or CRAFT?

  Thank you!

  KSandberg and to add to the recall of John that only ITO tables can be moved online, if the table needs to be moved offline the indexes would be invalid until rebuilt.  If the table is an IOT I suggest you rebuild the index online after the move because even if the indexes are always used the logical ROWID is more pointing to the correct location and access of the index will be less effective that will you rebuild the index.

  - -

  The dbms_redefinition package could be an alternative solution if you need to move the tables no - ITO online.

  - -

  HTH - Mark D Powell.

• ALTER table move lob segment of a partition

  How I could move a LOB from a table segment partitioned (11.1 DB)?
  
  I have after the table script:

  CREATE TABLE COMMON.TEST_AAA2_ARH
  (
    ID           INTEGER,
    TEKST        VARCHAR2(200 CHAR),
    UPDATESTAMP  DATE,
    OBJEKAT      CLOB
  )
  LOB (OBJEKAT) STORE AS (
    TABLESPACE COMMON_ARCHIVE
    ENABLE       STORAGE IN ROW
    CHUNK       8192
    RETENTION
    NOCACHE
    LOGGING)
  TABLESPACE COMMON_ARCHIVE
  LOGGING
  PARTITION BY RANGE (UPDATESTAMP)
  (  
    PARTITION P_201012 VALUES LESS THAN (TO_DATE(' 2011-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
      LOGGING
      NOCOMPRESS 
      TABLESPACE COMMON_DATA
      LOB (OBJEKAT) STORE AS (
        TABLESPACE USERS
        ENABLE       STORAGE IN ROW
        CHUNK       8192
        PCTVERSION  10
        NOCACHE
        LOGGING),  
    PARTITION P_201101 VALUES LESS THAN (TO_DATE(' 2011-02-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
      LOGGING
      NOCOMPRESS 
      TABLESPACE COMMON_DATA
      LOB (OBJEKAT) STORE AS (
        TABLESPACE USERS
        ENABLE       STORAGE IN ROW
        CHUNK       8192
        PCTVERSION  10
        NOCACHE
        LOGGING),  
    PARTITION P_MAXVALUE VALUES LESS THAN (MAXVALUE)
      LOGGING
      NOCOMPRESS 
      TABLESPACE COMMON_ARCHIVE
      LOB (OBJEKAT) STORE AS (
        TABLESPACE COMMON_ARCHIVE
        ENABLE       STORAGE IN ROW
        CHUNK       8192
        PCTVERSION  10
        NOCACHE
        LOGGING)
  )
  NOCOMPRESS 
  NOCACHE
  NOPARALLEL
  MONITORING;

  and I would switch USERS tablespace lob segment to the other...
  
  TNX

  ALTER table move partition lob () store as (tablespace )

  SQL> CREATE TABLE WISSEM.TEST_AAA2_ARH
  (
    ID           INTEGER,
    TEKST        VARCHAR2(200 CHAR),
    UPDATESTAMP  DATE,
    OBJEKAT      CLOB
  )
  LOB (OBJEKAT) STORE AS (
    TABLESPACE EXAMPLE
    ENABLE       STORAGE IN ROW
    CHUNK       8192
    RETENTION
    NOCACHE
    LOGGING)
  TABLESPACE EXAMPLE
  LOGGING
  PARTITION BY RANGE (UPDATESTAMP)
  (
    PARTITION P_201012 VALUES LESS THAN (TO_DATE(' 2011-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
      LOGGING
      NOCOMPRESS
      TABLESPACE EXAMPLE
      LOB (OBJEKAT) STORE AS (
        TABLESPACE USERS
        ENABLE       STORAGE IN ROW
        CHUNK       8192
        PCTVERSION  10
        NOCACHE
        LOGGING),
    PARTITION P_201101 VALUES LESS THAN (TO_DATE(' 2011-02-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
      LOGGING
      NOCOMPRESS
      TABLESPACE EXAMPLE
      LOB (OBJEKAT) STORE AS (
        TABLESPACE USERS
        ENABLE       STORAGE IN ROW
        CHUNK       8192
        PCTVERSION  10
        NOCACHE
        LOGGING),
    PARTITION P_MAXVALUE VALUES LESS THAN (MAXVALUE)
      LOGGING
      NOCOMPRESS
      TABLESPACE EXAMPLE
      LOB (OBJEKAT) STORE AS (
        TABLESPACE EXAMPLE
        ENABLE       STORAGE IN ROW
        CHUNK       8192
        PCTVERSION  10
        NOCACHE
        LOGGING)
  )
  NOCOMPRESS
  NOCACHE
  NOPARALLEL
  MONITORING;
    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56
  Table created.
  
  SQL> ALTER TABLE WISSEM.TEST_AAA2_ARH MOVE LOB (OBJEKAT) STORE AS (TABLESPACE USERS);
  ALTER TABLE WISSEM.TEST_AAA2_ARH MOVE LOB (OBJEKAT) STORE AS (TABLESPACE USERS)
                     *
  ERROR at line 1:
  ORA-14511: cannot perform operation on a partitioned object
  
  SQL> ALTER TABLE WISSEM.TEST_AAA2_ARH MOVE PARTITION P_201101 LOB (OBJEKAT) STORE AS (TABLESPACE USERS);
  
  Table altered.
  
  SQL> 
  

  Published by: orawiss on May 5, 2011 14:03

• in what version of oracle alter table move tablespace introduce

  Hello
  
  Can you please provide me with information to present including oracle realease oracle alter table move tablespace nom_tablespace; ...
  
  Thank you

  Actully had this... that first of all we create a table using DEC and then delete the old table and then re-create the table with the original name, this way we'll finally have table > with the same name and data.

  But he has disadvantanges that
  (1) there is no index, we recreate.
  (2) no constraint, we need to redefine tht.

  Please confirm to me... I am right or wrong here...

  Thanks a lot for your answers anantha all the... It's my last request... Please respond

  To avoid TELL-benefits mentioned above,

  -Export the table or the diagram.
  (create two discharges of export.
  1. with the owner or table with index = n lines = n - This will export all the objects without indexes, and lines. In other words, the metadata will be exported with regard to a table or schema.
  2. with the owner, or a table with index = lines y = y - this will export all the objects from a table or schema.

  -Remove the table
  -Recreate the Table (using export generated from option 1 above)
  -Import the data without indexes and constraints are imported. (use of export generated from option 2 mentioned above. use ignore = y,)
  constraints and indexes = n = n here.)
  -Import(re-Create) indexes and enable constraints (using export produced option 2 rows = n ignore = y)

  See the Oracle 7 here documentation

  -André

• ALTER table move partition in parallel

  Hello
  
  I wish that this command must be run in parallel. is this possible?
  
  ALTER TABLE xyz PARTITION MOVE xyz_p0608 TABLESPACE q208_ts
  
  Thank you

  parallel_clause
  
  Purpose
  
  The parallel_clause lets you parallelize the creation of a database object and set the default degree of parallelism for subsequent queries of and DML operations on the object.
  
  You can specify the parallel_clause in the following statements:
  
      * CREATE TABLE: to set parallelism for the table (see CREATE TABLE).
      * ALTER TABLE (see ALTER TABLE):
            o To change parallelism for the table
            o To parallelize the operations of adding, coalescing, exchanging, merging, splitting, truncating, dropping, or moving a table partition
  

  To parallelize append operations, coalescence, Exchange, merger, splitting, truncate, delete or move a partition table
  

• DEALLOCATE UNUSED and SHRINK SPACE

  Hello
  What is the difference between the effect of DEALLOCATE UNUSED and SHRINK the SPACE?

  ALTER TABLE mytable DEALLOCATE UNUSED;
  ALTER TABLE mytable SHRINK SPACE;

  ahmedbaraka wrote:
  Hello
  What is the difference between the effect of DEALLOCATE UNUSED and SHRINK the SPACE?

  ALTER TABLE mytable DEALLOCATE UNUSED;
  ALTER TABLE mytable SHRINK SPACE;
  

  The SQL reference for 10.2 manual...

  deallocate_unused_clause

  Use the deallocate_unused_clause to explicitly release the unused space at the end of the table, partition or subpartition, segment overflow data, segment of LOB data and LOB index and make space available for other segments in the tablespace.

  shrink_clause

  The retraction clause allows manually shrink the space in a table, table arranged according to index or its overflow segment, index, partition, subpartition, LOB segment, materialized view, or newspaper materialized view. This clause is valid only for the segments in the tablespaces with automatic segment management. By default, Oracle database compact segment, adjusts the HWM and frees the space recovered immediately.

  Compaction of the segment requires the movement of the line. Therefore, you must enable the movement of line for the object you want to cut before you specify this clause. In addition, if your application contains the rowid-based triggers, you must disable them before issuing this clause.

  Or condense the above:

  DEALLOCATE - simply releases unused space at the end of the segment; don't move not any data

  Shrink - shrink space in a segment - requires line movement.

• HWM, shrink space and datafile resize

  Hello world

  
  

  After deletion of lines in the middle of the table, I guess that HWM decline.

  If I do after that:

  alter table t shrink space

  the HWM decrease?

  Second question:

  When I try to decrease a size of data file, I get this error:

  ORA-03297: file contains data beyond the requested value of RESIZING

  
  

  What is the cause of this error?

  Is the sollution to shrink the space of all objects in the data file?

  
  

  Thank you
  

  Hello

  check the below:

  How to adjust the high watermark in ORACLE 10 g & #8211; ALTER TABLE SHRINK | Lutz hartmann as sysdba

• alter table shrink space! ~ help!

  Hi guys,.
  
  (1) I have send a space of shrinking orders and it takes ages to complete.
  
  (2) generated Tons of redo and undo and I'm near my hard drive space max.
  
  T1) if I had to kill today's session.
  There will be a lot of back to?
  
  is not alter table a DDL statement, so the movement of the line be committed regularly or only after the entire statement over?
  
  which means that the decline in price if I kill the session will have to restore all the way at the time that I publish a retraction statement?
  
  Kind regards
  Noob

  grateful if you could offer some advice.

  My advice is to TEST DDL on dev. DB before launching the Production System; so that you know what to expect coming.

• ALTER TABLE SHRINK the SPACE COMPACT takes a long time

  Hello
  I run:
  ALTER TABLE TOM. TAB1 SHRINK SPACE COMPACT;
  ALTER TABLE TOM. TAB1 SHRINK SPACE WATERFALL;

  
  The "ALTER TABLE TOM. Tab1 SHRINK SPACE COMPACT"was completed in 2 hours, but"ALTER TABLE TOM. Tab1 SHRINK SPACE WATERFALL"is still underway after 8 hours, less than the size of the table TAB1 and index:

  NOM_SEGMENT... GB
  TAB1................................. 166
  IDX01................................ 83
  SYS_C00......................... 42
  IDX02............................. 142
  IDX03.............................. 66
  IDX04............................. 122

  
  Why 'SHRINK the SPACE COMPACT' takes a lot of time?
  Is it possible to check how much time should I take?

  Thanks in advance!

  Running

  ALTER INDEX TOM. TAB1_IDX03 SHRINK SPACE COMPACT;

  ALTER INDEX TOM. TAB1_IDX03 SHRINK SPACE;

  set is useless, as does 'SHRINK the SPACE' that means "SHRINK SPACE COMPACT" and much more (see the quote from the Doc Oracle Hemant).  2, 'SHRINK the SPACE' is the operation that will take more time.  So if 'SHRINK the SPACE' is what you wanted (reclaim space) and you can afford to wait, run 'SHRINK the SPACE' only.

  "SHRINK the COMPACT SPACE" is a part of the work that 'SHRINK the SPACE' is only.  Generally, use you it when time is at a premium: you run SHRINK SPACE COMPACT a weekday evening (because SHRINK the SPACE does not fit in one night and accrue hourly) and you run SHRINK SPACE on the weekend to finish following the recovery of your space.

  Regarding the fact that the entire segment or a partition after another, I have no experience - I both of their time and test methods.  Perhaps running several sessions at the same time on different partitions would save time (but be more heavy on the CPU and storage).

  Also note that SHRINK the AREA generates a lot of REDO (keep an eye on the free space of your ARCHIVELOG destination).  With your data volume, I would expect dozens (or even hundreds) of gigabytes of roll forward must be generated.

• ALTER table a enable row movement cause problem

  Hello
  
  I did allow the movement of the row in the table and then shrink the space. which causes the performance issue? If so, how? How to allow the movement of the line and shrink the work of space internally?
  
  can deposit in full table scan, then the idexes on this table is not used more?

  947721 wrote:

  can shrink space available internally to what extent?

  Use the following syntax in a google search: alter table shrink space site: docs.oracle.com

  Note, by the way: "allow the movement of the line" allows you to take advantage of the features of line-movement, but he made no movement.

  Concerning
  Jonathan Lewis

• ALTER table table_name move tablespace

  Hello
  
  IM using oracle 11.1.0.7.0 on aix 5.3, most of the users in my database is assigned to the SYSTEM tablespace, and their objects are also created in the SYSTEM tablespace.
  
  IM planning to run Alter table table_name move tablespace nom_tablespace;
  
  y at - it no need to run index rebuilding or the above command will automatically index rebulid.
  
  Thank you

  SQL> alter table table_name move tablespace users;
  Table altered.
  
  SQL> alter index index_name rebuild tablespace users;
  Index altered.
  
  SQL> select status from user_objects where object_name = 'INDEX_NAME';
  STATUS
  -------
  VALID
  

  Source: -.
  http://www.orafaq.com/Forum/t/21672/2/

• Reclaim space after ALTER TABLE DROP PARTITION

  Hello
  
  I have a partitioned table. My requirement is to reclaim the space by dropping a partition of the table.
  
  Is it possibe to recover space for the tablespace by dropping a partition of partition table?
  
  Thank you

  Hello

  ALTER TABLE DROP PARTITION will always return the space to the storage to be reused by other segments.

  It's the ALTER TABLE TRONQUER SCORE, where you can specify DROP STORAGE or of REUSE STORAGE clause (in case of re-use, the space is not released and can be used by the new lines inserted in the same partition). The DROP STORAGE should be the default option.

  But for the fall of the score, you don't have to worry.

  Kind regards
  Martin

• ALTER TABLE RETRACTABLE is possible online?

  RDBMS Version: 11.2.0.4

  Platform: Oracle Linux 6.4

  We have a database of CARS of Production 2 nodes very critical. To recover the space, we want to cut some large tables. The first table we'll shrink is a 300 GB, which is not partitioned with no LOB table.

  Here are the steps that we'll run.

  Step1.alter mytable table allow the movement of the line;

  Step2.alter mytable table shrink space compact;

  Step3.alter mytable table shrink space;

  Step4.alter table mytable disable the movement of the line;

  STEP 5. COLLECT STATISTICS of the table (because the RETRACTABLE table will cancel all the sliders in the shared pool)

  The steps above will take at least 10 hours to complete a 300 GB table. We would like to know if all of these steps can be done online. That is to say. We do not want the SHRINK command to lock the table and prevents the table to be modified (any DML) by the application

  Doc below said this can be done online. But, MOS DOC 1357878.1 said that it is not and you must use the DBMS_REDEFINITION package if you want to do it online.

  https://docs.Oracle.com/CD/E18283_01/server.112/e17120/schema003.htm

  The MOS article you are talking about is not correct. Outside the DOF at the end of a SHRINK lock when the high tide is shifted, SHRINK the SPACE is an online operation. DBMS_REDEFNITION is actually worse because you have DDL locks at both the beginning and the end. However, in both cases, it is the DDL that is blocked by other operations DML (and not the other way around) so that your users will have no problem. If the narrowing or the redefinition is blocked, you can suspend the database for a few seconds. I described how to do here,

  Database Quiesce

  --

  John Watson

  Oracle Certified Master s/n

• ALTER table drop column is too slow on the big table

  Hi all
  the user has run after a command in oracle 10 G: - >
  ALTER table < table name > Delete column (< cloumn list >); table in question is of a size 41GB.
  
  the results of the command to cancel space filled.
  Tips of even trace file cancel segemnts.
  
  query failed for hours.
  Why cancel is linked to this
  and what would the resolution for this.
  
  Unused help set...
  
  
  Thanks in advance,
  Rock

  Would it be useful to assign unused columns?
  What about dbms_redefinition?

• "Querying volume for available shrink space" does not

  I tried to create an empty partition on my 500 GB drive C (which I still have more than 350 GB free) to be able to dual boot another OS next to my already installed Windows 7 Ultimate 64-bit, but I encountered a problem from the beginning. While trying to shrink the space on drive C for the partition, the computer management hangs on 'Volume mark for available shrink space' for about a minute, and then said computer management "not responding". I have retried several times, and I still have the same result. I tried running "sfc/scannow" as administrator CMD, but there is no problems found. Afterwards, I checked errors on drive C, but the result is always the same. I don't know how to go further with this problem. Any help would be greatly appreciated...

  Here are a few options:

  • Use a third-party disk manager, or a commercial (e.g. Acronis DiskDirector) or one that is free.
  • Use diskpart.exe in a command prompt if you are comfortable to work at this level. It might give you a more explicit feedback. Here is what you would see:

  d:\>Diskpart
  Microsoft Corporation.
  On computer: ACORN

  DISKPART > select disk 0
  Disk 0 is now the selected disk.

  DISKPART > detail disk
  Crucial_CT512MX100SSD1 ATA Device
  . . .
  Volume # Ltr Label Fs Type size status Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
  Healthy Volume 1 c System NTFS Partition 68 GB system
  Sound data 2 D NTFS Partition 97 GB Pagefile volume
  Volume 3 e drivers NTFS Partition 310 GB healthy

  DISKPART > select partition 3
  Partition 3 is now the selected partition.

  DISKPART > retractable help

  (read the help text)

  DISKPART > shrink Desired = Minimum 150 = 100

  DISKPART > exit