PL/SQL :: Interval Partitioning On Table?
Mar 28, 2013If a Interval Partitioning can be created on a table for every fortnight ? db version is 11g.
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PL/SQL :: ORA-14037 on Interval Partitioning
Jan 7, 2013Interval partitioning I keep getting the below error on a table.A more discerning eye is needed
PARTITION DEC_2012 VALUES LESS THAN (TO_DATE('01-01-2013', 'DD-MM-YYYY')),
*
ERROR at line 26:
ORA-14037: partition bound of partition "DEC_2012" is too high
CREATE TABLE STATISTICS_PART
(
ID_KEY NUMBER(10) NOT NULL,
LUD DATE DEFAULT sysdate,
[code]....
Date Range Vs Interval Partitioning
Dec 16, 2010Other than the obvious to me, where interval partitioning creates partitions as needed. Is there any performance benefit from using interval partitions vs date range partitions.
One draw back for me is that developers do access the partition name in some of their queries, so if I use date range partitioning this will not break their code. I could not find a way to assign a name to a partition when using intervals, is this always system generated or can this be over-ridden.
I am running Oracle 11.1.0.7 soon to be running on 11.2.0.0
SQL & PL/SQL :: Interval Partitioning With Local Index?
Nov 25, 2011I Have created a interval partitioned table with local index.But when automatic partitions are created based record insertion, whether local indexes will be created for each newly created partition or not? If created, how to check
Below is the code which I tried
CREATE TABLE interval_date
(
date1 date,
days VARCHAR2(50)
)
PARTITION BY RANGE(date1)
INTERVAL (NUMTODSINTERVAL(45,'DAY'))
[code]....
PL/SQL :: Range Partition Using Interval Partitioning?
May 2, 2013I am trying to create a partitioned table so that a number (which date converted to number ) partition is created on inserting a new row for release_date column.
note that release_date column is having number data type (as per design) and people want to create an interval based partition on this.
They want data type NOT to be altered.
create table product(
prod_id number,
prod_code varchar2(3),
release_date number)
partition by range(release_date)
interval(NUMTOYMINTERVAL (1,'MONTH'))
(partition p0 values less than (20120101))
Interval Partitioning On Number Column?
Sep 19, 201311gr2, We need to do partition a existing table of size 20g, But partition key column is NUMBER type and data stored in unix date format.I would like to create a monthly partition table as below. But not able to create.
create table student ( ENTRY_ID number(5,1), NAME varchar2(30 BYTE) ) partition by range ( fun_unix_to_date (ENTRY_ID) ) --> fun_unix_to_date is a customized function to convert unix time stamp to date format.
INTERVAL (100) ( PARTITION CATCH_ALL values LESS THAN (to_date('01-MAR-12','DD-MON-YY')));
ERROR at line 5:ORA-00907: missing right parenthesis
SQL & PL/SQL :: Interval Partitioning And NULL Column Values
Mar 12, 2010Our organization is attempting to learn more about the partitioning features of Oracle 11g. I've been reading the partitioning manuals, and I have not found a clear answer on this topic, but I suspect I know the answer.
If you create a range partitioned table; using interval partitioning, say something like this:
CREATE table range_parti (
CODE NUMBER(5),
DESCRIPTION VARCHAR2(50),
CREATED_DATE DATE)
PARTITION BY RANGE (created_date)
INTERVAL (NUMTOYMINTERVAL(1,'MONTH'))
(
PARTITION my_parti VALUES LESS THAN (TO_DATE('01-NOV-2007','DD-MON-YYYY'))
);
but you try to insert a null value as the partition key, you get the following error:
SQL> INSERT INTO range_parti VALUES (1,'one',NULL);
INSERT INTO range_parti VALUES (1,'one',NULL)
*
ERROR at line 1:
ORA-14400: inserted partition key does not map to any partition
Elapsed: 00:00:00.07
Is there no way to tell it to use a default partition for NULL values? Or specifically designate a partition for NULL values WITHOUT having to manually list out each partition? It seems it works if you don't use the INTERVAL keyword, list out your partitions, and use MAXVALUE. However, our hope to avoid having that as it creates monstrously huge DDL statements for tables that have lots of date ranges, and we will be forced to manually add new partitions each month as data is added/time passes.
It appears from my experience so far, if your column can allow nulls, you cannot use interval range partitioning on that column.
PL/SQL :: Use Securefile For New Partitions Made By Interval Partitioning
Oct 19, 2012I am using Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production.I have a range partitioned table having lobs as basicfile. Due to storage issue and other business constraints , it is determined not to change existing lobs to securefile.
However ,we want new lobs to be in securefile and alter table to have interval partition+.While researching, I found sql to change lob in range partition to securefile by using
alter table t1 add partition t1_p2 value less than (10000) lob (col3) store as securefile (tablespace tbs_sf1)
What to do similar in case of interval partition.
PL/SQL :: Dropping Partition Dynamically In Interval Partitioning
Aug 22, 2012I have created an Interval Partition Table as show below, Is their any way, i can drop the partition dynamically when i truncate the table as oracle creates them with system generated name? Instead Alter table drop partition !
Create Table Script :
------------------------------------------------------------------------------------------------------------------------------------------------
CREATE TABLE TBL_EMP_SALES
(
EMP_ID NUMBER(38),
EMPNAME VARCHAR2(9),
EMP_SALES_AMOUNT NUMBER(5),
EMP_SALES_DATE DATE,
[Code]....
Insert Script :
------------------------------------------------------------------------------------------------------------------------------------------------
INSERT INTO TBL_EMP_SALES VALUES (1001,'A',50,SYSDATE);
INSERT INTO TBL_EMP_SALES VALUES (1002,'B',100,SYSDATE+1);
INSERT INTO TBL_EMP_SALES VALUES (1003,'C',80,SYSDATE+2);
[Code]....
Partitions Created :
-------------------------------------------------------------------------------------------------------------------------------------------------
select segment_name,partition_name,bytes from user_segments where segment_name = 'TBL_EMP_SALES';
segment_name partition_name bytes
TBL_EMP_SALES P0 8388608
TBL_EMP_SALES SYS_P602 8388608
TBL_EMP_SALES SYS_P603 8388608
[Code]....
SQL & PL/SQL :: How To Transfer Data From Non-partitioning Table To Partitioning Table
Apr 4, 2013I have problem to transfer data in non partitioning table to partitioning table.
I have non partitioning table and i create new table partitioning that have same column and type like in non partitioning. So how can i transfer data from table in non partitioning to table in partitioning?
PL/SQL :: Partitioning A Table?
Jul 27, 2012How to partition a table which is already having data.I have a STUDENT table along with following fields which is having million of rows.
studentid name class Gender
Now I want to partition this table based on gender MALE and FEMALE.
Get Table Partitioning?
Sep 23, 2013I have a partitioned table with 1 lakh records
if i disable the partition feature im my database will it affect my table data.
SQL & PL/SQL :: Table Partitioning With No Primary Key
Jan 24, 2013we apply partitioning concept on a table which don't have any primary key ?
I just want to add one more field as primary key with some sequence generated values while partitioning ? Is it possible ?
SQL & PL/SQL :: Oracle Table Partitioning?
Jun 2, 2010an existing normal table be converted to a partitioned table without recreating the table or truncating/reloaded data?
View 4 Replies View RelatedPartitioning A Table In Production?
Nov 2, 2012Oracle 10.2.0.4
I partitioned a source table of around 100 million rows (62GB) in DEV server. The target database was created new. It was range partioned on a date column 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
)
That is yearly basis. Anything before 2012 went to ppre2012, then p2012, p2013 and so forth. There is 20 million rows in p2012. and around 75 million rows in ppre2012. We needed both the source (un-partitioned) and target (partitioned) tables in DEv for comparision. The queries are normally on the current year partition. Just to state taht I am a developer and don't have full visibility to the production instance.
Now that our tests are complete, we would like to promote this in production. Obviously in production we would not not need both source and target tables. In all probability this will be performed over a weekend window. Therefore I would like to suggest the following .
1) use expdp to export source table
2) drop the source table
3) create a new source table "partitioned" with no indexes
4) use impdp to get data back into table
5) create global index (it is a unique index to enforce uniquness) and the rest of indexes as local
6) perform dbms_stats.gather_table_stats(user,'SOURCE', cascade=>true). This takes around 2 hours in dev
My point is that whether importing 100 million rows will not cause issues with undo segments. Can we import data say first to the current partition p2012 (20 million rows) first.
SQL & PL/SQL :: Partition A Table By List And Interval?
Dec 12, 2012We have a table like below.
Create table Item_max
(
CCN varchar2(10),
Run_date date,
Item varchar2(10),
status varchar2(1)
[code].....
Currently we are inserting the cycle data for all Items every day into above table for all the CCN's.Currently there are 100k Items in our DB and gets inserted every day into above table with Different Rundates for all CCN's.
We need the above data for 6months and we would like to purge the data based on the RunDates.
We thought of creating a Partition on CCN and Interval Subpartition on Run_date with Interval of every 1 day but I could get any materials on the net to have List-Interval partitioning in Oracle 11G.
Also List - Range partitioning doesnt work here as the Dynamic partition used(using Maxused) will contain the data for all Run_dates instead of particular rundate.
Partitioning - Switch Partition Key On Existing Table?
Jan 23, 2011I recently started working with legacy code and noticed that some huge tables (5 years worth of data, don't have more details on me right now but can post later if needed) are partitioned based on time sequence number column while majority of queries are done based on time (different column). Queries performance is degrading and I'd like to try to modify partitioning and run some tests to evaluate performance improvement.
My only concern is with so much live data I have to come up with solution on how to switch partitioning with the least impact on applications running 24 x 7. Something you have done in the same situation and it worked?
PL/SQL :: XML Errors While Partitioning Existing Table By DBMS_REDEFNITION
Jan 28, 2013I am trying to partition an existing table through DBMS_REDEFNITION. Following are the steps that I have taken and the error I have got.
1. Creating a table to be partitioned.
CREATE TABLE SO33070_ORIGINAL
(
SERIAL_ID NUMBER(15,0),
INSERTED_TIME DATE DEFAULT SYSDATE,
PRIMARY KEY (SERIAL_ID)
);
Success
2. Checking if the table can be partitioned
DECLARE
v_name VARCHAR2(256);
BEGIN
SELECT sys_context('userenv', 'current_user') INTO v_name FROM dual;
DBMS_REDEFINITION.CAN_REDEF_TABLE(v_name, 'SO33070_ORIGINAL', dbms_redefinition.CONS_USE_ROWID);
END;
Success
3. Creating a duplicate table
CREATE TABLE SO33070_NEW
(
SERIAL_ID NUMBER(15,0),
INSERTED_TIME DATE DEFAULT SYSDATE
)
PARTITION BY RANGE ("INSERTED_TIME") INTERVAL (NUMTODSINTERVAL(1,'DAY'))
(
PARTITION "p1_1" VALUES LESS THAN (TO_DATE(' 2012-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
)
Success
4. Starting the redefnition process
EXEC DBMS_REDEFINITION.START_REDEF_TABLE( uname => 'CDS_USER', orig_table => 'SO33070_ORIGINAL', int_table => 'SO33070_NEW', col_mapping => '', options_flag => DBMS_REDEFINITION.CONS_USE_ROWID);
Success
5. Copying the dependents
DECLARE
num_errors NUMBER;
BEGIN
DBMS_REDEFINITION.COPY_TABLE_DEPENDENTS(
uname => 'CDS_USER',
orig_table=>'SO33070_ORIGINAL',
[code]....
Partitioning Table To Improve Load And Query Performance?
Nov 20, 2012I have a big table in which we load about 37M recrods. We have informatica ETL which Loads the data in bulk Mode and creats index after completion. The data load takes about 1Hr and Index Creation takes about 1/2 hr. In total it takes about 90 to 95 Mnts.
Now I thought if Partition and Load paralley, It will improve perfromance. We did 4 partition and and each Partition about 9M records. The data load in Bulk mode is completing in 25 Mnts. Again When I am creating index over it, It is taking about 40 Mnts. and in Total Load time is 65 Mnts.
Is there way I can better performance to complete the load in 1/2 hr ?
Use Range-hash Partitioning Of A Large Dimension Table
Apr 12, 2013At moment we use range-hash partitioning of a large dimension table (dimension model warehouse) table with 2 levels - range partitioned on columns only available at bottom level of hierarchy - date and issue_id.
Result is a partition with null value - assume would get a null partition in large fact table if was partitioned with reference to the large dimension.Large fact table similarly partitioned date range-hash local bitmap indexes
Suggested to use would get automatic partition-wise joins if used reference partitioningWould have thought would get that with range-hash on both dimension.
Table Partitioning - Range On Datatype Number (21, 7) And Varchar2
Nov 15, 2013Database Version : DB : Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit ProductionOS : HP-UX nduhi18 B.11.31 U ia64 1022072414 unlimited-user licenseAPP : SAP - ERP I have to RANGE partition on UPDATED_ON or PROFILE either one table which is having below
structure : Name Null? Type
-------------------- -------- --------------------------------
MANDT NOT NULL VARCHAR2(9) MR_ID NOT NULL VARCHAR2(60) PROFILE NOT NULL VARCHAR2(54) REGISTER_ID NOT NULL VARCHAR2(30) INTERVAL_DATE NOT NULL VARCHAR2(24) AGGR_CONSUMPTION NOT NULL NUMBER(21,6) MDM_VERS_NO NOT NULL VARCHAR2(9) MDP_UPDATE_DATE NOT NULL VARCHAR2(24) MDP_UPDATE_TIME NOT NULL VARCHAR2(18) NMI_CONFIG NOT NULL VARCHAR2(120) NMI_CONFIG_FLAG NOT NULL VARCHAR2(3) MDM_DATA_STRM_ID NOT NULL VARCHAR2(6) NSRD NOT NULL VARCHAR2
[Code]....
As per my knowledge, RANGE is better suited for DATE or NUMBER. and INTERVAL partition is possible on DATE or NUMBEr . Column PROFILEIts is of VARCHAR2 datatype. I know still I can partition as Oracle internally convert varchar2 to number while inserting data. But INTERVAL is not possible. How to RANGE partition on PROFILE ? Column CREATED_ON :It is of NUMBER with decimal
How To Practice Partitioning
Sep 20, 2012I want to practice partitioning, I have schema which has sales table but that is already partitioned. I want to know if there are some schema available for download which has non partitioned tables and records more than 10000.
View 8 Replies View RelatedIndex On Partitioning Key
Mar 13, 2012There is a very large fact table that is range partitioned by a column DATE_KEY of type NUMBER(38), such that every hour is a different partition. There is a bitmap index BX$FACT#DATE_KEY on field DATE_KEY, which also is a foreign key referencing DATE_DIM (DATE_KEY). There is a different DATE_KEY for every hour, generated as YYYYMMDDHH24.
When I run
"SELECT * FROM FACT WHERE DATE_KEY >= 2012031207 AND DATE_KEY < 2012031208"
to get all the records for 7 am on March 12th, partition pruning kicks in and sees that only one partition is used. The CBO then decides to do a full scan of the partition. This behavior is correct/desired.
If, however, I run
"SELECT * FROM FACT WHERE DATE_KEY = 2012031207 AND DATE_KEY < 2012031209"
to get all the records for 7 and 8 am, Oracle knows that it will have to scan two partitions. The CBO then decides that using the BX$FACT#DATE_KEY must be a good idea and, instead of doing a full scan of the partitions, does access by local index rowid, which is many times slower.
I think I understand the cause - when more than a single partition is involved, Oracle has to use the global index stats (instead of the local ones, like in the first scenario) and the CBO decides to use it because that the selectivity for the global index is great, when in fact the query will return all the rows for that particular partition (no selectivity).
How to get the CBO to choose a full scan in the second scenario as well? I need to support ad-hoc queries generated by a BI tool, so I cannot add hints to the queries. I also can't get rid of the index on DATE_KEY, because in real life the predicates are on fields of the date dimension, not directly on the key, so I need to join on it.
SQL & PL/SQL :: How To See A Tables Transactions For The Day Or Interval
Jun 12, 2012I have a problem, we have some datas in a table for example 7500 rows in a table name called table1 upto 11:am today. but after 11:25 am i have only 5500 rows. in that table.
the table can be accessed by many users here. we dont know when the delete happended in that table. is there any query to find the transaction log of this particular table.
the deletion should be happended between 11:00 am to 11:30 am. but we have retrieved the data using timestamp query. but we need to know when the query issued and by which user the query has been issued.
SQL & PL/SQL :: Time Interval In Schedule Job
Jul 17, 2012How to set time interval in schedule job i need five minutes interval..
View 5 Replies View RelatedSQL & PL/SQL :: Repeat Interval For DBMS_SCHEDULER?
Oct 13, 2011I have created a job using DBMS_SCHEDULER and I want it to run every 30 seconds:
begin
dbms_scheduler.create_job(job_name => 'jobu',
job_type => 'PLSQL_BLOCK',
[Code]....
My question is how can I take the value 30 from a configuration table? Let's say I have a query like select value from config_table where property = 'job_interval' that returns the number 30. How can I set this value to be the repeat interval for my job?
SQL & PL/SQL :: Job Schedule To Run Every Wednesday In 20 Min Interval
Aug 5, 2010schedule the dbms_job to run every Wednesday in 20min interval. I am using below script but getting error
exec dbms_job.isubmit(44,'ER2.LOAD_CRID2_DATA;',trunc(sysdate),'trunc(SYSDATE,''WEDNESDAY'') + 20/1440),TRUE);
SQL & PL/SQL :: Time Interval Group
Mar 28, 2011IN OUT ROOM
1/20/2011 7:26:00 AM | 3/28/2011 10:34:51 AM | 1
3/23/2011 12:53:00 PM | 3/28/2011 10:34:51 AM | 2
3/14/2011 10:44:00 AM | 3/14/2011 3:05:00 PM | 3
2/24/2011 2:31:00 PM | 2/25/2011 9:02:00 AM | 1
2/22/2011 1:32:00 PM | 2/23/2011 9:56:00 AM | 2
2/22/2011 1:30:00 PM | 2/22/2011 1:32:00 PM | 1
12/9/2010 6:42:00 PM | 12/11/2010 1:38:00 PM | 3
3/8/2011 4:48:00 PM | 3/28/2011 10:34:51 AM | 1
Here I need an out put like below
room 1 2 3 Total
date 7am-12pm 12pm-7pm 7pm-7am 7am-12pm 12pm-7pm 7pm-7am 7am-12pm 12pm-7pm 7pm-7am
01/20/2011 2 3 1 1 3 3 2 4 1
01/21/2011 1 2 2 1 0 0 0 0
...........................................
.......................................
Total
i have to divide into 3 groups and take a count 7am-12pm, 12pm-7pm, 7pm-7am groups
It looks so complicated to me, because IN time and OUT time together how we do it.
suppose one person 6am IN and out 8PM means he will be in 7am-noon , noon to 7pm, 7pm-7am -- 1, 1 1 on 3 interval another scenario is if one person in 2am in the morning it has to be previous days count. Is this possible to do it in query.
Application Express :: Interval Day To Second
May 28, 2013I have one page with an interactive report (Page 10) and another with a form to update each entry (Page 20).
The table that these pages refer to have a column called MY_INTERVAL_COL of type INTERVAL DAYS TO SECONDS.
I can successfully display the contents of MY_INTERVAL_COL by extracting DAYS, MINUTES, and SECONDS on Page 10:
TO_CHAR(EXTRACT(DAY FROM MY_INTERVAL_COL)) AS MY_DAYS,
TO_CHAR(EXTRACT(HOUR FROM MY_INTERVAL_COL)) AS MY_HOURS,
TO_CHAR(EXTRACT(MINUTE FROM MY_INTERVAL_COL)) AS MY_MINUTES,
However, the Automated Row Fetch process appears to ignore columns of type INTERVAL DAYS TO SECONDS on Page 20.
:P20_INTERVAL (database column MY_INTERVAL_COL is used)
:P20_DAYS (trying to convert :P20_INTERVAL using TO_CHAR(EXTRACT(DAY...
:P20_HOURS (and so on...)
:P20_MINUTES
Does Automated Row Fetch ignore columns of type INTERVAL DAYS TO SECONDS?
Oracle 11gR2 used. Apex 4.1
SQL & PL/SQL :: How To Make Horizontal Partitioning
Mar 4, 2013how should i do to make horizontal partitioning?
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