Daily requirement Auto partitioning on space table

Hi gurus of the Oracle

How to configure the Oracle Table for partition of auto every day in space table every day.

There should be one to a mapping between the space in the partition and the table

table space must be created automatically

appreciate the help

Hello

Our agreement is intended to improve query response time

Although in fact the main reason to create separate daily to separate partition table space is to optimize the balance for easily maintainable against partition of large size that could help a lot to SOME queries and IO select

Tags: Database

Similar Questions

Column of type BLOB in own tablespace in partition in the table, tablespace to move

Hi all
First off I use Oracle Database 11.2.0.2 on AIX 5.3.
We have a table is partitioned on a monthly basis.
In this table, there is a partition (BOTTOM), this lower score is 1.5 TB in size thanks to a BLOB column called (ATTACHMENT).
The rest of the table is not large, about 30 GB, it's the BLOB column that uses all the space.
The lower part is in its own default tablespace (DefaultTablespace), the BLOB column in the lower score is also in its own tablespace (TABLESPACE_LOB) - 1.5 to
I was invited in order to free up space by moving the TABELSPACE_LOB (from the low partition) to a data archive, confirming the data is there and then remove the lower score of the production.
I do not have enough free space (or time) make an expdp, I think not only its doable with data so much.
```
CREATE TABLE tablename
(
  xx                          VARCHAR2(14 BYTE),          
  xx                          NUMBER(8),    
  xx         NUMBER,
  ATTACHMENT   BLOB,
  xx             DATE,
  xx             VARCHAR2(100 BYTE),
  xx                     INTEGER,
)
LOB (ATTACHMENT) STORE AS (
  TABLESPACE  DefaultTablespace
  ENABLE      STORAGE IN ROW
NOCOMPRESS
TABLESPACE DefaultTablespace
RESULT_CACHE (MODE DEFAULT)


PARTITION BY RANGE (xx)
( 
  PARTITION LOWER VALUES LESS THAN ('xx')
    LOGGING
    COMPRESS BASIC
    TABLESPACE DefaultTablespace
    LOB (ATTACHMENT) STORE AS (
      TABLESPACE  TABLESPACE_LOB
      ENABLE      STORAGE IN ROW
)

...>>
```
My idea was to take a table, excluding the attachment column datapump, export using external tables.
Then to create the table on the database archive 'with' the attachment column.
Import data only, as I understand that if you use a dump file that has too many columns Oracle he will manage, I hope it will work the other way around.
Then on the production, make the TABLESPACE_LOB read-only and move it to the new file system.
It's a little more complicated that a normal gesture of tablespace because of how the table is split.
Any advice would be much appreciated.

I was thinking about an approach as:

SWAP PARTITION allows to separate the partition of the table
- Create a non-partitioned table which is otherwise identical in structure to tablename (nonpart_tablename)
- ALTER TABLE TableName LOWER WITH nonpart_tablename SWAP PARTITION
Move the segment of the table at TABLESPACE_LOB, or to a different tablespace on its own. It is, as you say, only 30 GB and I think (but not strongly enough to go forward without testing/validation on a smaller scale) that the displacement of the segment of the table in this way does not disrupt the LOB segment, as long as you don't say MOVE LOB.
- ALTER TABLE nonpart_tablename MOVE TABLESPACE TABLESPACE_LOB
Now the TABLESPACE_LOB tablespace is self-contained and you can make it transportable.

Limit the number of partitions of a table can have
Hello

It has been a while I think about a simple method and the best solution to a performance problem in my application. Benefiting from the table partitioning seems a simpler approach. It involves tiny my application code changes and more, it keeps the logic of global application 100% intact. However, sometimes the number of required partitions can grow to more than 500 thousand. I know another application implementation of partitions that 50 thousand for one of his paintings. I wonder if Oracle recommends or puts a limit to a number of partitions of the table can have. How does that limit, if it exists, varies so each of my partition table contains only a small amount of data. say, no more than 2 thousand records each of size 1 KB. What are the important considerations to keep in mind while creating the huge number of partitions of a table?

All entries on this would be a great help.

Thank you
EXISTING

PS: versions of Oracle 10 g from to consider.

Published by: Olivia on December 30, 2009 09:46

Published by: Olivia on December 30, 2009 09:50
Hello

Please visit the following link.

Maximum number of partitions?

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How to query a single partition of a table

Dear Experts,

Please, help me in this issue.

https://community.Oracle.com/thread/3511578

I try to get the number of records in a partition of a table. 11.2.0 Oracle database version

Picture is of size 700 GB.

Table is partitioned on COVERED_LINE_END_DATE using the range.

I want my query to run on particular partition

I created the local partition on COVERED_LINE_END_DATE index

I want to restrict my questions to a single partition, and then I want to use index to get quick results.

Currently my queries takes hours, and same table without partition table works well.

Please suggest me how this partition table.

I always ask this table by using the range of dates, which is quarterly.

so I partiton table quarterly. and then I want to index particular partition.

PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------
SQL_ID a75mjmfsd873v
--------------------
 select  count(1) FROM X_3_PV_TD_LINE_ITEMS_FF_REL_2 A  WHERE
A.COVERAGE = 'COVERED' AND A.SERIALIZED = 'Y'  AND
A.COVERED_LINE_END_DATE BETWEEN sysdate-30 AND sysdate


Plan hash value: 3089225921


------
| Id  | Operation                               | Name| Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |    TQ  |IN-OUT| PQ Distrib |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT                        ||       |       |  1425 (100)|          |       |       |        |      |     |
|   1 |  SORT AGGREGATE                         ||     1 |    21 |            |          |       |       |        |      |     |
|   2 |   PX COORDINATOR                        ||       |       |            |          |       |       |        |      |     |
|   3 |    PX SEND QC (RANDOM)                  | :TQ10000|     1 |    21 |            |          |       |       |  Q1,00 | P->S | QC (RAND)  |
|   4 |     SORT AGGREGATE                      ||     1 |    21 |            |          |       |       |  Q1,00 | PCWP |     |
|   5 |      FILTER                             ||       |       |            |          |       |       |  Q1,00 | PCWC |     |
|   6 |       PX PARTITION LIST ALL             ||  1307 | 27447 |  1425   (1)| 00:00:18 |     1 |     5 |  Q1,00 | PCWC |     |
|   7 |        TABLE ACCESS BY LOCAL INDEX ROWID| X_3_PV_TD_LINE_ITEMS_FF_REL_2|  1307 | 27447 |  1425   (1)| 00:00:18 |   KEY |   KEY |  Q1,00 | PCWP |     |
|   8 |         INDEX RANGE SCAN                | X_3_COVERED_LINE_END_DATE_IDX|  5229 |       |   209   (0)| 00:00:03 |   KEY |   KEY |  Q1,00 | PCWP |     |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
22 rows selected.

Thanks in advance for your help and your time.

Thus, a query today in February will span two partitions FY14Q3 and FY14Q2 * and * actually access all subparts in each of these two partitions because your query filter to a specific subpartition.

Hemant K Collette

Partitioning of a table in the production
Hello

Oracle 10.2.0.4

I partitioned a table lines about 100 million (62 GB) in Server DEV source. The target database was created again. It was partioned range on a column of date as follows:
```
PARTITION BY RANGE (ENTRY_DATE_TIME)
(
  PARTITION ppre2012 values less than (TO_DATE('01/01/2012','DD/MM/YYYY')) TABLESPACE WST_LRG_D,
  PARTITION p2012 values less than (TO_DATE('01/01/2013','DD/MM/YYYY')) TABLESPACE WST_LRG_D,
  PARTITION p2013 values less than (TO_DATE('01/01/2014','DD/MM/YYYY')) TABLESPACE WST_LRG_D,
  PARTITION p2014 values less than (MAXVALUE) TABLESPACE WST_LRG_D
)
```
It's every year. Nothing before 2012 to p2013 ppre2012, then 2012, and so on. There are 20 million lines in 2012. and about 75 million lines of ppre2012. We had as well to the tables (partitioned) target DEv and (unpartitioned) source for comparison. Queries are normally on the partition for the current year. Just to say that I am a developer and do not have full visibility to the production instance.

Now that our tests are completed, we would like to promote this production. Of course in production we would not not need source and target tables. In all likelihood, this will be done on a weekend window. This is why I would like to suggest the following.

(1) use expdp export the source table
(2) remove the table from the source
(3) create a new source "partitioned" no index table
(4) use impdp to retrieve data in a table
(5) create a global index (it's a unique index to enforce the uniquness) and the rest of the clues like local
(6) run dbms_stats.gather_table_stats (waterfall of the user, 'SOURCE' = > true). It takes about 2 hours by dev

My point is that, if the importation of 100 million lines will cause no issues with segments of cancellation. Can we import data say firstly to the current partition (20 million lines) 2012 first. Any practical advice is appreciated.

Thank you

Published by: 902986 on November 2, 2012 02:08

Published by: 902986 on November 2, 2012 03:10
>
-Why do I get "ORA-12838: cannot read/modify an object after edit it in parallel."
>
Why don't find you the error and read the cause "that applies?
http://ORA-12838.ora-code.com/
>
ORA-12838: cannot read/modify an object after edit it in parallel
Cause: In the same transaction, an attempt was made to add instructions for reading or changing on a table once it had been amended at the same time or with a direct charge. This is not allowed.
>
Do you have a 'direct charge '? Yes - you can not do anything else under this operation. Do a COMMIT or ROLLBACK first.

Problem with trunacating the partitions of a table.
Hi all

I have a table partitioned, called temp1_list_cmpgn_hist_dtl, and it is partitioned by month (campaign_start_date).

I tried, queries
TRUNCATE TABLE temp1_list_cmpgn_hist_dtl PARTITION t_list_cmpgn_201006
TRUNCATE TABLE temp1_list_cmpgn_hist_dtl PARTITION t_list_cmpgn_201006 REUSE STORAGE

but it throws me the following error message:
SQL error: ORA-03291: Invalid truncate option - missing keyword STORAGE
03291 00000 - "invalid truncate option - missing keyword STORAGE"
* Cause: Keyword STORAGE planned
* Action: Specify DROP STORAGE or reuse STORAGE

Also, I'll try to find the nom_partition for the 'temp1_list_cmpgn_hist_dtl' table, but it shows not all partitions, although there are partitions.
I tried the query,
SELECT Nom_partition from user_tab_partitions WHERE table_name = 'temp1_list_cmpgn_hist_dtl '.

THX,
Rod.
You cannot truncate individual partitions of a table. The closest you could come would be to do a swap partition with an empty table created to match your partition.

Also, I'll try to find the nom_partition for the 'temp1_list_cmpgn_hist_dtl' table, but it shows not all partitions, although there are partitions.
I tried the query,
SELECT Nom_partition from user_tab_partitions WHERE table_name = 'temp1_list_cmpgn_hist_dtl '.

All the names of objects in the Oracle database, by default, are stored in uppercase letters, so make sure the upper case of the table name.

John

HowTo archive several Partitions of the Table to a new table?
We have a very big_table partitioned on the TRAN_DATE column per month.

PARTITION 'P200310' VALUES LESS THAN (TO_DATE (' 2003-11-01 00:00:00 ',' SYYYY-MM-DD HH24:MI:SS ',' NLS_CALENDAR = GREGORIAN '))
+.. +
+.. +
+.. +
PARTITION "P201008" VALUES LOWER THAN (TO_DATE (' 2010-09-01 00:00:00 ', 'SYYYY-MM-DD HH24:MI:SS', ' NLS_CALENDAR = GREGORIAN ' "))

We wanted sheet music archive (consolidated) "P200812" "P200811" "P200810"... and below in a new_table.

I tested the "swap partition" method but the docs I found offers with one partition is going to a single table, such as:

P200812-> table1
P200811-> table2
etc...
etc...
so, I end up with multiple partitions at several tables... not what we wanted.

I think a merger of all the partitions P200812 and below in a single partition and make the Exchange. What is the quickest way?

Any help or pointers will be greatly appreciated.

Thank you.

Edited by: joey_p May 14, 2010 12:45 AM
```
create new_table as select * from big_table where 1=2;  -- create an empty, non-partitioned table
alter new_table nologging;
alter session enable parallel dml;
insert /*+ APPEND PARALLEL (n 2) */ into new_table n
select /*+ PARALLEL (b 2) */ * from big_table partition (first_partition_name);
commit;
insert /*+ APPEND PARALLEL (n 2) */ into new_table n
select /*+ PARALLEL (b 2) */ * from big_table partition (second_partition_name);
commit;
alter table big_table truncate partition (first_partition_name);
alter table big_table truncate partition (second_partition_name);
alter table big_table merge partition ....
```
TRUNCATE and MERGE orders that you would do once you have verified that all the data has been copied to the new table. (and, preferably, after a BACKUP was taken, because integration into new_table was made without redoing loggging.

Hemant K Collette
http://hemantoracledba.blogspot.com

Partition on existing Tables

Hello

I want to archive a database due to too much data into DB everymonth, so I have to delete the records from the previous month, which is about 4 million.

Can someone give me idea to delete records as soon as possible. My opinion is to create the partition on the table and drop the partition once he becomes older.
But if I want to introduce the partition then I have to create a partition in an existing table. So please give me the best way to introduce the partition of the existing table.

It would really help that may suggest meanings.

Thank you

Spengler

Here is an example

CREATE TABLE my_table (
  id           NUMBER,
  description  VARCHAR2(50),
  create_date date
)PARTITION BY RANGE (create_date)
(PARTITION id_id0 VALUES LESS THAN (TO_DATE('26/08/2009', 'DD/MM/YYYY')) TABLESPACE users,
 PARTITION id_id1 VALUES LESS THAN (TO_DATE('27/08/2009', 'DD/MM/YYYY')) TABLESPACE users,
 PARTITION id_id2 VALUES LESS THAN (TO_DATE('28/08/2009', 'DD/MM/YYYY')) TABLESPACE users,
 PARTITION id_id3 VALUES LESS THAN (TO_DATE('29/08/2009', 'DD/MM/YYYY')) TABLESPACE users,
PARTITION id_id4 VALUES LESS THAN (TO_DATE('30/08/2009', 'DD/MM/YYYY')) TABLESPACE users,
PARTITION id_max  VALUES LESS THAN  (MAXVALUE) TABLESPACE users);

-Insert the sample data

 INSERT INTO my_table  VALUES (0, 'ZERO',sysdate);
INSERT INTO my_table  VALUES (1, 'One',sysdate+1);
INSERT INTO my_table  VALUES (2, 'Two',sysdate+2);
INSERT INTO my_table  VALUES (3, 'Three',sysdate+3);
INSERT INTO my_table  VALUES (4, 'Four',sysdate+4);
COMMIT;

-You can run these queries to check the output.

select * from my_table;
select * from my_table partition(id_id0);
select * from my_table partition(id_id1);
select * from my_table partition(id_id2);
select * from my_table partition(id_id3);
select * from my_table partition(id_id4);
select * from my_table partition(id_max);

-Split partition

ALTER TABLE my_table SPLIT PARTITION id_max AT (TO_DATE('01/09/2009', 'DD/MM/YYYY'))
INTO (PARTITION id_id5 TABLESPACE users,PARTITION id_max TABLESPACE users);

-Insert data into the new partition

INSERT INTO my_table  VALUES (5, 'FIVE',sysdate+5);
commit;

-check

select * from my_table partition(id_id5);

required fields and auto submit to the table

I have a table that has the delivery content properties immediate and immediate to true. This table has text entry and auto submit and required to true. the question is I just wanted mandatory fields appear when I press the button and the fields are empty when I fill one and give tab.
I auto submit to true to add lines when the values of each entry does not get lost.
Help me

I put inputtext absence form and sup = true property and solve my problem.

Thank you very much for your help. I appreciate it!

Is it possible to determine where in a table a space table or partition?

11.2.0.3 Oracle on linux AWS A3 16 Oracle database server.
After a fall of several large tables have a tablespace 3to with 1.5 TB of free space. We made a tablespace shrink but recovered only 200 GB, as I understand it the HWM reset cant more weak cause of fragmentation.
We do not want to reorg all objects in the repository. is there a script to determine where in the repository of objects? I hope that moving objects little we can then reduce it considerably.
I found scripts that showed me the degree of fragmentation, but not where they are. Any ideas?

Here's the answer, took a bit of digging

https://jonathanlewis.WordPress.com/tablespace-HWM/

referenced in

https://jonathanlewis.WordPress.com/2010/02/06/shrink-tablespace/

Eclipse can not show auto completion ctrl + space

Guys,

My Eclipse 3.4.1 cannot display the auto completion or the required action when I'm clicking on ctrl + space.

Can someone help me with this? I'm a bit new to blackberry and these ctrl + space will be very useful for me

try to reboot or reinstall eclipse, as it works for me.

Change the type of partition on a table
Hello

I have a table that is partitioned by list on the date column. The table contains a large amount of data.

My requirement is to make the partition from the list in a fan on the same column.

Kindly advice.
Hello

Welcome to the forum.

This is the forum for {forum: id = 260}.

Your question needs to be asked to {forum: id = 61} or {forum: id = 75}.

Please mark this question as answered (so others know they can ignore this thread) and after again in one of the cited one.

Concerning
Marcus

Range partitioning of a table. Max to set value
Hello

I use a partitioned table range, range partitioned to date and have set the max value such as 6 months after the Date of creation.
I have a proc that creates the partitions, I want to advance to split the max score.

-Now what do I do when the max score is reached after 6 months?
-If I set the max score one or two years after the current date instead of the currently defined 6 months after the date of creation. What are the negative aspects attached with it?

I can't use the Partition interval and must use Range only.
Please suggest.

Thank you...
>
In fact, I'll create the daily partitions. But I intend to create a week pf partitions in advance, rather than creating one every day.
It wise or should I create daily partition, insert some data into it. Then the next day, create the partition again and so on...
Or each week to create a week of partitions in advance.
>
It's to you how you want to do the maintenance activity.

Maybe you have information the rest of us don't but my sources tell me that tomorrow, the next day and so on will continue to arrive in this exact order, day after day in the foreseeable future. This isn't like creating partitions for December will be useless.

Like I said above
>
And there is really no penalty to create partitions in advance. So you may want to consider the creation of partitions, you will need by the end of the year at least and then make a month at a time or, if partitioning by month per quarter (3 months) at a time.

Adding new partition in the table are
Hello

Oracle 9i
Windows 2003 operating system

The main entry/exit table is one of the base tables that has a large number of records and a very high success rate, and to avoid poor performance that may occur in such cases, Oracle Table partitioning technique has been examined in the early stages of the implementation of the system.

Unfortunately, the technique used to divide data based on the year of the transaction considered the year 2010 as the last specific partition, so all records created after this year is gathered in a single partition and this may cause poor performance in the years to come.

Are required to add another 10 partitions; up to the year 2020 taking into account that the downtime should be close to zero.

Ground:

According to my knowledge

for this, so we can create a new table with the same columns and add required 10 more partitions, and if we take 2 scenarios like

export/imp
insertion in the new table select * from < table > old

What is the best, and if we take exp/imp, if her take a few hours of time to complete a task... what will happen for the updates as insert, update, and delete in this time what will be the impact on the import... I mean if all committed tarnscations... These tarnscations automatically add to the table are not.

Please tell me what is the best and the tarnscations should not effect... pls tell me how excatly we can complete the task.

Concerning
873393
In my script, I have a DROP TABLE because I'll put up a reproducible demonstration. I can run the script repeatedly and regenerate the same demo data!
In your environment you would not fall off the table!
To simplify the demo for you: IGNORE the DROP TABLE command. Pretend it does not exist.

Hemant K Collette

Daily requirement Auto partitioning on space table

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