GetLength errors on CLOB. Retrieves the size of a table with CLOB columns

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• Find the size of a table with partitions; Two questions

  DB version: 11.2.0.4

  Platform: Oracle Linux 6.4

  The slot table MH_PKT_HEADR in UTMSBL schema has more than 5000 partitions.

  Because there partitions, you cannot use just view DBA_SEGMENTS to determine the size of the table.

  So, I tried to use 2 SQLs mentioned below. Query1 returned 5 GB. But Query2 has returned a value zero. Query2 is actually a note metalink mentioned below, so he cannot deceive you, I guess.

  That is the reliable accurate query: Query1 or Query2?

  No idea why Query2 returns a Null value?

  - Query1

  fixed lines 200

  Col TABLE_NAME format a18

  with

  BaseData as)

  Select the owner

  nom_segment

  segment_type

  , round (sum (bytes) / 1024/1024/1024) GB

  sum (bytes) bytes

  count (*) segment_count

  of s dba_segments

  Group by owner, nom_segment, segment_type

  )

  ,

  LOB type as data)

  Select the owner

  table_name

  nom_segment

  of dba_lobs

  )

  ,

  all_segs like)

  Select coalesce (lobs.table_name, basedata.segment_name) table_name

  basedata.*

  of basedata

  left outer join

  type LOB data

  on (basedata.segment_name = lobs.segment_name

  and basedata.owner = lobs.owner)

  )

  Select table_name

  sum (bytes) bytes

  sum (gb) GB

  of all_segs

  where table_name = 'MH_PKT_HEADR'.

  and owner = 'UTMSBL. '

  Table_name group;

  TABLE_NAME BYTES GB

  ------------------ ---------- ----------

  5869469696 5 MH_PKT_HEADR

  - Request 2

  -Source: how to calculate the size of a Table that contains outline CLOB and BLOB (Doc ID 118531.1()

  SELECT

  (SELECT SUM (S.BYTES) - the Segment of Table size

  FROM DBA_SEGMENTS S

  WHERE S.OWNER = UPPER ('UTMSBL') AND

  (S.SEGMENT_NAME = UPPER ('MH_PKT_HEADR'))) +

  (SELECT SUM (S.BYTES) - the size of the Lob Segment

  FROM DBA_SEGMENTS S, DBA_LOBS L

  WHERE S.OWNER = UPPER ('UTMSBL') AND

  (L.SEGMENT_NAME = S.SEGMENT_NAME AND L.TABLE_NAME = UPPER('MH_PKT_HEADR') AND L.OWNER = UPPER('UTMSBL'))) +

  (SELECT SUM (S.BYTES) - the size of the Lob Index

  FROM DBA_SEGMENTS S, DBA_INDEXES I

  WHERE S.OWNER = UPPER ('UTMSBL') AND

  (I.INDEX_NAME = S.SEGMENT_NAME AND I.TABLE_NAME = UPPER('MH_PKT_HEADR') AND INDEX_TYPE = 'LOB' AND I.OWNER = UPPER('UTMSBL')))

  "TOTAL TABLE SIZE.

  FROM DUAL;

  TOTAL TABLE SIZE

  ----------------

  SELECT

  (SELECT nvl (SUM (S.BYTES), 0)-dimensions of the Segment Table)

  FROM DBA_SEGMENTS S

  WHERE S.OWNER = UPPER ('UTMSBL') AND

  (S.SEGMENT_NAME = UPPER ('MH_PKT_HEADR'))) +

  (SELECT nvl (SUM (S.BYTES), 0)-Segment Lob size)

  FROM DBA_SEGMENTS S, DBA_LOBS L

  WHERE S.OWNER = UPPER ('UTMSBL') AND

  (L.SEGMENT_NAME = S.SEGMENT_NAME AND L.TABLE_NAME = UPPER('MH_PKT_HEADR') AND L.OWNER = UPPER('UTMSBL'))) +

  (SELECT nvl (SUM (S.BYTES), 0)-size of the Lob Index)

  FROM DBA_SEGMENTS S, DBA_INDEXES I

  WHERE S.OWNER = UPPER ('UTMSBL') AND

  (I.INDEX_NAME = S.SEGMENT_NAME AND I.TABLE_NAME = UPPER('MH_PKT_HEADR') AND INDEX_TYPE = 'LOB' AND I.OWNER = UPPER('UTMSBL')))

  "TOTAL TABLE SIZE.

  FROM DUAL;

  David Fitzjarrell

• How to find the size of a table with CLOB

  Hello

  I have a table with CLOB as follows:

  SQL > desc INFO_MESSAGES

  Name                                      Null?    Type

  ----------------------------------------- -------- ----------------------------

  CLNT_OID NOT NULL VARCHAR2 (16)

  USR_OID NOT NULL VARCHAR2 (16)

  LAST_client_msg_ID VARCHAR2 (36)

  LAST_client_msg_DATE DATE

  LAST_client_msg CLOB

  LAST_USR_MSG_BOD_ID VARCHAR2 (36)

  DATE OF LAST_USR_MSG_DATE

  CLOB LAST_USR_MSG

  Now I just want to find out what is the size/area total absorbed by the table (including the CLOB columns), so how can I find? I think that the usual command does not - the

  Select format from dba_segments where nom_segment = "INFO_MESSAGES" is only showing 7 MB, while I think that the table has several GB of space due to the CLOB.

  Also to add one more detail: when dba_segments seeking, I see a result like this:

  Select * of dba_segments order by bytes DESC;

  MIGRTN SYS_LOB0000111131C00008$ $ LOBSEGMENT SAMS DATA1 20690 6 1963 14528000 119013376000 <-the top row

  MIGRTN this is the schema where this INFO_MESSAGES table is present.

  Thanks,

  OrauserN

  you will need to add the segment_size of the LOB segments to the segment_size of the table. The connection between the two pieces of information you find in USER_LOBS (or the corresponding ALL_, DBA_ objects).

• Retrieve the index of a table with a value greater than zero

  How is it possible to extract the indices of the elements above zero in a 2D array?

  Example:

  Table:

  0 12 11 33 0

  1 0 0 0 0

  2 99 0 9 0

  Need to get 12,11,33 table indexes and so on...

  Nghtcrwlr,

  Attached is the first thing that comes to mind.

  Dan

• retrieve the information of partition table with lack of offline data file

  I just restored a backup of a database. When I unzipped data files, I discovered that a single data file was so damaged in the starting order of the database, I had to put the offline data file. The tablespace which reports the data file holds the information of partition of a table. Since I have no archives from when the data file has been created, I know it is not possible to recover the data file, I have to recover as many lines as possible other files in the tablespace data but when export or create the table as what to choose in the affected partition get ORA-00376 : cannot read file 1624 at the moment.
  
  is there a way to tell oracle to ignore the data offline file and export the remaining data file information?
  
  Just to clarify my situation a little more;
  iI have a table called PPGA_ACTABOPRE that is partitioned by HASH and has 20 partitions, each partition in a different tablespace and tablespace each have about 8 files of data. A data file in the partition 9 is missing and I want is to get the information from the files of the remaining data, but whenever I issue a select statement or an exp or anything I get ORA-00376.
  
  I try to set the flag to ignore blocks corrupt with run DBMS_REPAIR. SKIP_CORRUPT_BLOCKS ('PPGA', 'PPGA_ACTABOPRE'); and then select the info but it did not work.
  
  Any suggestion would be appreciated;
  Thanks in advance

  For the actabopre_p08 partition, some files are available, and we're not. You can access data at the segment level, because some extensions are missing.

  You would need to access the data by rowid. You could loop through dba_extents and use dbms_rowid.create to generate a list of ROWID that may exist in the available data files.

  This may help: -.

  http://kerryosborne.Oracle-guy.com/2009/02/saving-rows-from-corrupt-blocks/
  http://kerryosborne.Oracle-guy.com/scripts/save_u.SQL

  Published by: Robert Geier on March 12, 2010 15:33

• I need to write a vbscript script to retrieve the size of an access database

  Could someone help me write a vbscript script to retrieve the size of an access database. I need to put this in my schedular system to run every morning.

  Hi Rob,

  Your question is more complex than what is generally answered in the Microsoft Answers forums. It is better suited for the IT Pro TechNet public. Please post your question in the Office IT Pro. You can follow the link to your question:

  http://social.technet.Microsoft.com/forums/en-us/officeitpro/threads

• Error occurred in retrieving the provided user bindDN.The user must have attribute/s firstName, lastName, email BindDN.

  When I go through the wizard and setting to the top of my base and bind DN, I get the following error. What Miss me? Error saving configuration of the directory. Error occurred in retrieving the provided user bindDN.The user must have attribute/s firstName, lastName, email BindDN.

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• need help to determine the size of all tables in a table space

  Hello
  
  I want to know the size of individual Tables belonging to a particular Tablespace (ULTGNP), ordered by the size in MB. I have to analyze the tables before I have a discovery of the size. I tried this script, could someone please go through the script and correct it, if necessary errors.
  
  Select owner, segment_name, tablespace_name, sum ((bytes/1024/1024)) bytes
  of sys.dba_extents
  where owner in 'ULTGNP' and segment_type = 'TABLE '.
  Group by tablespace_name, owner, nom_segment
  order by owner, nom_tablespace, nom_segment bytes
  
  
  Thank you

  SELECT
  SUBSTR(s.segment_name,1,20) TABLE_NAME,
  SUBSTR(s.tablespace_name,1,20) TABLESPACE_NAME,
  ROUND(DECODE(s.extents, 1, s.initial_extent,
  (s.initial_extent + (s.extents-1) * s.next_extent))/1024000,2) ALLOCATED_MB,
  ROUND((t.num_rows * t.avg_row_len / 1024000),2) REQUIRED_MB
  FROM
  dba_segments s,
  dba_tables t
  WHERE
  s.owner = t.owner AND
  s.segment_name = t.table_name
  and SUBSTR(s.tablespace_name,1,20)='TABLESPACE_NAME',
  SUBSTR(s.segment_name,1,20) )='Your_table'
  
  ORDER BY s.segment_name;
  

  Published by: Adigozalov Qurban on January 25, 2011 11:08

• Set the size of fixed table

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• How will I know "the size of a table special VS size of RAM"

  Hi all

  How will I know "the size of a table special VS size of RAM"?

  I should know because I want to understand what join method to use.

  Please correct me if my attempt to catch the truth is crazy.

  Thanks in advance.

  You can get the size of a table of DBA_SEGMENTS.  I'm sure you can get the amount of RAM of other tables of data dictionary as well if you can define precisely what memory segment you are interested in (e.g. CMS?)  PGA?  The amount of physical RAM on the box?  The size of the buffer cache?  The amount of virtual memory available?)

  That being said, comparing the two is not as significant.  You, as a developer, are generally not in the business of choosing a join method.  It's the job of the optimizer.  And the optimizer takes into account a range of data that you have not begun to ask about yet.  The size of the table is not even particularly relevant for calculations - the optimizer the amount of data operations are back, the relative size of the data on each side of the join, the availability of indexes, etc. are all much more important than the raw size of the table (but the raw size of the array is a factor in the assessment of the amount of data that is returned).

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• Reduce the size of a table.

  Hello group,
  
  To reduce the size of a table, that I was asked to remove about 2 million lines, however queriying dba_segments after having removed the lines, the value of the BYTES column to the same value stay.
  
  Why?, how ask Oracle to reduce the table itself.
  
  Thank you very much.

  user12003066 wrote:
  Hello group,

  To reduce the size of a table, that I was asked to remove about 2 million lines, however queriying dba_segments after having removed the lines, the value of the BYTES column to the same value stay.

  Why?, how ask Oracle to reduce the table itself.

  What happens when you run this?

  exec dbms_stats.gather_table_stats ('schema', 'your_table_name');

  Aman...

• Newbie Question on the use of the size of a table in a schema

  Hi all,
  
  Newbie Alert!
  
  I tried to work on the size of a table in a schema and struggled to get the exact number. Could someone help me please with getting an exact figure.
  
  Thanks to all who responded!

  SELECT sum (blocks) * db_block_size/1024 MB of dba_extents
  where owner = SCHEMA_OWNER and nom_segment = TABLE_NAME;

  http://Waqas-DBA.blogspot.com