Oracle 11g interval partitioning - meaningfull partition-names

Hello,
On 11g, when creating interval partitions, the partitions get automatically created just fine. Very nice feature. But is it possible to supply meaningfull names to them?
Now they get names SYS_nnn, but I would like to name them for instance SALES_2007.
Here is one example on how to use interval partitioning:
http://download.oracle.com/docs/cd/B28359_01/server.111/b32024/part_admin.htm#BAJHFFBE
And here is the syntax guide:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/statements_7002.htm#sthref7644
I don't see how to accomplish meaningfull names (automatically!). Do you?

No I don't think it is possible. This is what is written in Oracle documentation..
http://download.oracle.com/docs/cd/B28359_01/server.111/b32024/partition.htm#CACHFHHF
>
The range partitioning key value determines the high value of the range partitions, which is called the transition point, and the database creates interval partitions for data beyond that transition point.
>

Similar Messages

11g interval partitioning and global index maintenance

hi gurus,
in 11g interval partitioning system can automatically manage the creation of new partitions based on data.
in this case do we need to manage global indexes?
in earlier versions, we have to update global indexes whenever there is a partition maintenance operation.
please suggest.
thanks,
charles

user570138 wrote:
in earlier versions, we have to update global indexes whenever there is a partition maintenance operation.In 10gR2 you don't need to update/rebuild a global index after adding a partition to the base table.
So it should be the same when using interval partitioning.
Regards
Maurice

11G Interval Partitioning range based on number

All the Oracle documentation states that interval partitioning can be range partitioned on a column that is NUMBER or DATE datatype, but the examples all show just for a DATE column and for a monthly interval.
I need an interval by year, where the partition column is NUMBER and contains 4 digit numbers for year like 2010.
.Does anyone have a working example for creating an interval partitioned table on a NUMBER datatype column?

Please do not refer people to the old, non-maintained psoug site. I have asked this several times in the past.
You do people no favor sending them to the old site contains as it contains inaccurate information I am unable to access and fix.
The new site is www.morganslibrary.org.
And I am a bit of an expert on the subject ... as I am "Morgan."
Thank you.

Split Oracle 11g Table Partition and Insert new rows

Hi,
I have a doubt that i would like to be clarified. I need to split a partition of a table with more than 800 Million records, but at the same time (during the split operation) i need to insert new records (not in the partition that is being splited). Is there any problem/risk doing this? Is the insert ETL process going to fail ?
Thanks in advance
Greetings.
Nuno
Edited by: user13512889 on 1/Set/2011 3:25

Hi Enrique,
Thanks for posting in MSDN.
Based on the description, you want to modify the formula for the A1 and B1 cell when you insert a new rows.
Yes, we can use Worksheet.Change to dermin the change of data on the worksheet then we can modify the formula as we wanted. Here is a sample for your reference:
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
Me.Range("A1").Formula = "=MAX($A2:$A" & Me.UsedRange.Rows.Count & ")"
Me.Range("B1").Formula = "=MIN($B2:$B" & Me.UsedRange.Rows.Count & ")"
End Sub
You can more detail about Excel VBA developing from link below:
Getting Started with VBA in Excel 2010
Welcome to the Excel 2013 developer reference
Regards & Fei
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How to search data dictionary for interval partitions?

Oracle 11.2.0.3
When I query DBA_PART_TABLES.PARTITIONING_TYPE it says 'range'. I want to be able to differential an interval from other range based partitions in the data dictionary?
used this example. shows 'range'
http://www.rittmanmead.com/2008/09/investigating-oracle-11g-interval-partitioning/
Oracle Docs list 'SYSTEM' as a partitioning_type which I thought would be intervals.
ALL_PART_TABLES
[code]
1   CREATE TABLE interval_sales
2          ( prod_id        NUMBER(6)
3          , cust_id        NUMBER
4          , time_id        DATE
5          , channel_id     CHAR(1)
6          , promo_id       NUMBER(6)
7          , quantity_sold NUMBER(3)
8          , amount_sold    NUMBER(10,2)
9          )
10       PARTITION BY RANGE (time_id)
11       INTERVAL(NUMTOYMINTERVAL(1, 'MONTH'))
12         ( PARTITION p0 VALUES LESS THAN (TO_DATE('1-1-2005', 'DD-MM-YYYY')),
13           PARTITION p1 VALUES LESS THAN (TO_DATE('1-1-2006', 'DD-MM-YYYY')),
14           PARTITION p2 VALUES LESS THAN (TO_DATE('1-7-2006', 'DD-MM-YYYY')),
15*          PARTITION p3 VALUES LESS THAN (TO_DATE('1-1-2007', 'DD-MM-YYYY')) )
SQL>/
Table created.
Elapsed: 00:00:00.01
SQL> select partitioning_type from user_part_tables where table_name = 'INTERVAL_SALES';
PARTITION
RANGE
[/code]

CREATE TABLE junk1
   ( id         NUMBER )
   PARTITION BY RANGE (id)
   INTERVAL(5)
     ( PARTITION p0 VALUES LESS THAN (5),
       PARTITION p1 VALUES LESS THAN (10),
       PARTITION p2 VALUES LESS THAN (15),
       PARTITION p3 VALUES LESS THAN (20) )
CREATE TABLE junk2
   ( id         NUMBER )
   PARTITION BY RANGE (id)
     ( PARTITION p0 VALUES LESS THAN (5),
       PARTITION p1 VALUES LESS THAN (10),
       PARTITION p2 VALUES LESS THAN (15),
       PARTITION p3 VALUES LESS THAN (20) )
select owner, table_name, partitioning_type, interval
from dba_part_tables
where table_name in ('JUNK1', 'JUNK2')
OWNER                          TABLE_NAME                     PARTITIONING_TYPE INTERVAL
GREGS                          JUNK1                          RANGE             5
GREGS                          JUNK2                          RANGE
2 rows selected.

Interval Partition

Hi All,
In interval partition name of the partition is assigned by system itself like sys_%.
Can we give the user define pattern for partition name?
Thanks a lot for your help.

Off the top of my head (you'd be better checking the documentation), I think you can rename the partition after it's created, but you can't define how Oracle automatically creates those interval partitions in the first place.

Using INTERVAL partition with Informatica

Curious to know if anyone has attempted using Oracle's INTERVAL partitioning method in conjunction with Informatica. My attempts have all resulted in an ORA-14400 error. However, slightly modifying the source qualifier SQL and executing in SQLPlus dynamically creates the partitions as expected. When standard RANGE partitions are created (without the INTERVAL option), Informatica will load the target table as expected.

Hence you just want to add a number of hours to a date?
select LOCATION_DATE + LOCATION_TIMEZONE/24 NEW_TIME from tablexMax
http://oracleitalia.wordpress.com
Edited by: Massimo Ruocchio on Feb 19, 2010 12:21 AM

Interval Partition naming Issue (Oracle 11g R2 )

I need help on identifying latest partition:
I am using Interval Partition for my table,which creates partition every month end based on inserted data.
When oracle creates partition assigning its own name but users have automated reports using partition names like Table_name_YYYYMM.
I tested following ways to identify partition then renamed,worked fine but in long run do i get any problems ?
or any other way to identify the latest partition ?
1)Using max partition position :
select partition_name from dba_tab_partitions a where partition_position = (select max(partition_position)
from user_tab_partitions b where a.table_name=b.table_name
and b.table_name = 'INTRVL_PARTITION');
2)Using Sub Object max creation date :
SELECT SUBOBJECT_NAME FROM dba_objects
WHERE OBJECT_TYPE='TABLE PARTITION'
AND OWNER='ABCD'
AND OBJECT_NAME='INTRVL_PARTITION'
AND CREATED=(SELECt MAX(CREATED) FROM DBA_OBJECTS
WHERE OBJECT_TYPE='TABLE PARTITION'
AND OWNER='ABCD'
AND OBJECT_NAME='INTRVL_PARTITION');
Thanks in advance .
Edited by: user607128 on Mar 2, 2012 7:09 AM

Your initial question said you were already using interval partitioning.
>
I am using Interval Partition for my table
now users asking to convert Range to Interval Partition and keeping existing partitions same name.
>
So is your issue that you want to use interval partitining for a table now is now using range partitioning? Why are your users driving this change? That should be a decision made by the DBA and technical management since the difference is mainly on of management.
Though there is one BIG difference that is data related. With interval partitioning if data (even erroneous data) is inserted for a partition that does not exist Oracle will create one. So if you have an insert statement that inserts 12 records for the year '2038' you will get 12 new partitions even though the data may be bogus.
Now your management problem is detecting the problem, deleting the data (or fixing the date to move it to the right partition) and then dropping the partitions and storage.
With 'interval' partitioning you had better be absolutely sure your data is clean in terms of the partitioning key values.
That said, you can use table redefinition or just create a new interval partitioned table and do partition exchanges with the existing partitions to move the data.

Automatic table partitioning in Oracle 11g

Hi All,
I need to implement automatic table partitioning in Oracle 11g version, but partitioning interval should be on daily basis(For every day).
I was able to perform this for Monthly and Yearly but not on daily basis.
create table part
(a date)PARTITION BY RANGE (a)
INTERVAL (NUMTOYMINTERVAL(1,'*MONTH*'))
(partition p1 values less than (TO_DATE('01-NOV-2007','DD-MON-YYYY'))
Table created
create table part
(a date)PARTITION BY RANGE (a)
INTERVAL (NUMTOYMINTERVAL(1,'*YEAR*'))
(partition p1 values less than (TO_DATE('01-NOV-2007','DD-MON-YYYY'))
Table createdBut if i use DD or DAY instead of YEAR or MONTH it fails......Please suggest me how to perform this on daily basis.
SQL>
1 create table part
2 (a date)PARTITION BY RANGE (a)
3 INTERVAL (NUMTOYMINTERVAL(1,'*DAY*'))
4 (partition p1 values less than (TO_DATE('01-NOV-2007','DD-MON-YYYY'))
5* )
SQL> /
INTERVAL (NUMTOYMINTERVAL(1,'DAY'))
ERROR at line 3:
ORA-14752: Interval expression is not a constant of the correct type
SQL> create table part
(a date)PARTITION BY RANGE (a)
INTERVAL (NUMTOYMINTERVAL(1,'*DD*'))
(partition p1 values less than (TO_DATE('01-NOV-2007','DD-MON-YYYY'))
); 2 3 4 5
INTERVAL (NUMTOYMINTERVAL(1,'DD'))
ERROR at line 3:
ORA-14752: Interval expression is not a constant of the correct typePlease suggest me to resolve this ORA-14752 error for using DAY or DD or HH24
-Yasser

Yes, for differenct partitions for different months.
interval (numtoyminterval(1,'MONTH'))
store in (TS1,TS2,TS3)
This code will store data in partitions in tablespaces TS1, TS2, and TS3 in a round robin manner.
for Day wise day yes you can store
INTERVAL (NUMTODSINTERVAL(1,'day')) or
INTERVAL (NUMTODSINTERVAL(2,'day')) or
INTERVAL (NUMTODSINTERVAL(3,'day')) or
INTERVAL (NUMTODSINTERVAL(4,'day')) or
INTERVAL (NUMTODSINTERVAL(5,'day')) or
INTERVAL (NUMTODSINTERVAL(n,'day'))

Default partition name for Interval partitioned tables

Hi ,
Can we change the default partition names which are generated by Oracle.
For Example :
CREATE TABLE part_interval (
id NUMBER,
created_date DATE
PARTITION BY RANGE (created_date)
INTERVAL (NUMTOYMINTERVAL(1,'MONTH'))
PARTITION part_01 values LESS THAN (TO_DATE('01-NOV-2007','DD-MON-YYYY'))
Now if I insert values which doesn't fall in the 01-NOV-2007 date, a new partition is created like SYS_P43. Can I change this default partition name in the SQL statement itself . Not through procedures or functions.
Regards,
Raghunathan A
Edited by: 869187 on Jun 29, 2011 6:08 AM

869187 wrote:
Hi ,
Can we change the default partition names which are generated by Oracle. post SQL & results that show you can change partition names generated by YOU.

Table partitioning (intervel partitioning) on existing tables in oracle 11g

Hi i'm newbie to table partitioning. I'm using 11g. I have table of size 32 gb (which has 22 million records) and i want to apply interval partition on that table. I created a empty table with a partition having columns same as source table and take dump of the source table and import into the new partition table. can you please suggest how to import table dump into new table? also is there any other better idea to do the same.

Hi,
imp user/password file=exp.dmp ignore=y
The ignore=y causes the import to skip the table creation and continues to load all rows.
On the other hand, you can insert data into the partitioned table with a subquery from the non-partitioned table such as follows;
insert into patitioned_table
select * from original_table;
Hope it helps,

Oracle 11g List - Range Partition - Help Needed

Hi All,
I want to create a composite partition (LIST-RANGE) but RANGE partition should using interval partition
This is my query .
CREATE TABLE "DMSDB"."DEVICE_UTILS"
(     "ULID" VARCHAR2(100 CHAR),
     "IP_ADDRESS" VARCHAR2(24 CHAR),
     "PORT" VARCHAR2(8 CHAR),
     "SHUTDOWN" NUMBER(10,0),
     "LINE_TYPE" NUMBER(10,0) DEFAULT '0',
     "OCCUPIED" NUMBER(10,0),
     "UTILIZATION" NUMBER(10,0),
     "IDLE_TIME" VARCHAR2(32 CHAR),
     "ACTIVATION_TIME" VARCHAR2(32 CHAR),
     "PULLED_DATE" TIMESTAMP (6) DEFAULT SYSDATE,
     "ACCESS_TIME" TIMESTAMP (6) DEFAULT SYSDATE
PARTITION BY LIST(ULID)
          PARTITION PART_DEVUTILS_ULID VALUES (DEFAULT)
     SUBPARTITION BY RANGE( PULLED_DATE)
     PARTITION PART_DEVUTILS_WEEK INTERVAL (NUMTOYMINTERVAL(1,'WEEK'))
Somehow its not working. can you please suggest where i am making mistake?

Interval partitioning is not supported at the subpartition level.
http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_7002.htm#BABCDDIA
Regards
Girish Sharma

Interval partitioning. How to choose partition name

Hi all,
Is there any wat to choose partition name when new partitions are created?
I mean insted of "SYS_P101" something like CUSTOMRES_P_256 where 256 is the new value that caused the creation of the partition.
The reason is that before running a long process I need to gather statistics on the partition based on that number
Thanks in advance,

You can rename a partition with your preferred naming convention:
alter table CUSTOMER rename partition SYS_P101 to CUSTOMRES_P_256;But first you need to know the name of the partition. One thing I have used in cases when an interval partition has not been created yet is to insert a record with the new partition key value so that the interval partition is created, then get the partition name and then roll back the insert. This way you know the partition name in advance of any data loading.
You can of course query dba_tab_partitions and look at the high_value column to select the correct partition. However, I prefer the following method of getting the partition name. It gives you the name of the partition for a row in a table. This is also useful for existing data (not just new partitions) if you ever need to find the partition where a certain row lives.
select subobject_name
into v_partition
from ALL_OBJECTS
where OWNER = 'SCHEMA_OWNER'
AND data_object_id in (select dbms_rowid.rowid_object(rowid)
                                 from FACT_TABLE
                                 where PARTITION_KEY_COL = MY_VALUE
                                 and rownum = 1);You can then use the partition name to load your facts, gather statistics, or rename the partition.

How to Find partition name by value ?

hey,
I have a big loading process into a certain fact table. the table is partitioned first by interval on a date column and then sub partitioned by hash. this is a big fact table so there are alot of bitmap indexes on it.
i want to disable all indexes on a specific partition given a certain value of the partition key.
is there any nice good looking way of finding the partition name by value ?
i would realy like to avoid running a loop on the high_value long column in all_tab_partitions
the etl process is running on the entire partition - after finding the partition name i would disable all sub partitions
if i could only do something like...
select $partition_name from some_table for (to_date('01/03/2012','dd/mm/yyyy'));i'm using oracle 11.2.0.2

haki_benita wrote:
now if we want to find the corresponding partition for a given value we need to check for the partition it's high value is greater then thy value and the previous one is lower then.Not necessarily. You can use the CBO to tell you what partition(s) will be used for a SQL statement. E.g.
// partition range table using dates and yearly partitions
SQL> create table testtab(
2          id      number,
3          day     date,
4          flag    varchar2(1)
5 )
6 partition by range(day)
7 (
8          partition year_1900 values less than (TO_DATE('2000/01/01','yyyy/mm/dd')),
9          partition year_2000 values less than (TO_DATE('2001/01/01','yyyy/mm/dd')),
10          partition year_2001 values less than (TO_DATE('2002/01/01','yyyy/mm/dd')),
11          partition year_2002 values less than (TO_DATE('2003/01/01','yyyy/mm/dd')),
12          partition year_2003 values less than (TO_DATE('2004/01/01','yyyy/mm/dd')),
13          partition year_2004 values less than (TO_DATE('2005/01/01','yyyy/mm/dd')),
14          partition year_2005 values less than (TO_DATE('2006/01/01','yyyy/mm/dd')),
15          partition year_2006 values less than (TO_DATE('2007/01/01','yyyy/mm/dd')),
16          partition year_2007 values less than (TO_DATE('2008/01/01','yyyy/mm/dd')),
17          partition year_2008 values less than (TO_DATE('2009/01/01','yyyy/mm/dd')),
18          partition year_2009 values less than (TO_DATE('2010/01/01','yyyy/mm/dd')),
19          partition year_2010 values less than (TO_DATE('2011/01/01','yyyy/mm/dd')),
20          partition year_2011 values less than (TO_DATE('2012/01/01','yyyy/mm/dd')),
21          partition year_2012 values less than (TO_DATE('2013/01/01','yyyy/mm/dd'))
22 );
Table created.
// the following can be automated using PL/SQL - e.g. passing the date parameter to
// a PL/SQL function and the function using the following approach to determine the
// target partition
SQL> explain plan
2          set statement_id = 'partition.testtab.1' for
3 select * from testtab where day = to_date( '2002/10/09','yyyy/mm/dd' );
Explained.
SQL> col PARTITIONS format a40
SQL> select
2          column_value    as PARTITIONS
3 from       TABLE(
4                  XmlSequence( extract(
5                          DBMS_XPLAN.Build_Plan_Xml( 'PLAN_TABLE', 'partition.testtab.1' ),
6                          '/plan/operation/partition'
7                  )
8                )
9          );
PARTITIONS
<partition start="4" stop="4"/>
<partition start="4" stop="4"/>
SQL> select partition_name from user_tab_partitions where table_name = 'TESTTAB' and partition_position = 4;
PARTITION_NAME
YEAR_2002
SQL>

Range interval partitioning with null value

Hello,
I have question, how can I create table with partition and after that I will insert null value in the partition key like this kind of
range interval partitioning with null value.
I have Oracle 11g.
Thanks
Mohammed

user13777053 wrote:
Thank you, but my question is about range interval not for range?http://docs.oracle.com/cd/E11882_01/server.112/e25523/partition.htm#VLDBG00220
A MAXVALUE literal can be defined for the highest partition. MAXVALUE represents a virtual infinite value that sorts higher than any other possible value for the partitioning key, *including the NULL value.*
So since you're trying to partition by interval (which doesn't support a MAXVALUE clause) you're out of luck.
There's probably fancy hacks and what not you could try to implement, but i'm not about to recommend any of those here :)
Cheers,

Oracle 11g interval partitioning - meaningfull partition-names

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