Date Range Vs Interval Partitioning
Dec 16, 2010
Other 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
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May 2, 2013
I 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))
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Mar 28, 2013
If a Interval Partitioning can be created on a table for every fortnight ? db version is 11g.
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Jan 7, 2013
Interval 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]....
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Nov 25, 2011
I 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]....
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Sep 19, 2013
11gr2, 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
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Mar 12, 2010
Our 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.
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Oct 19, 2012
I 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.
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Aug 22, 2012
I 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]....
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Apr 21, 2011
i have a requirement To partition a Table byRange partition with a Number column. but the issue is the range Must be in a Date datatype ,
For example
partition by range (date_key)
( PARTITION DEF VALUES LESS THAN ('01-SEP-10'))
the date_key column has values of date in number format. like "20101014"
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Sep 13, 2010
Environment
I have a database 10.2.0.4 running on 64bit Solaris 5.10 SPARC.
Question:
CREATE TABLE SYSTEM.BIG_TABLE1
(
ID NUMBER(10),
LOOKUP_ID NUMBER(10),
DATA VARCHAR2(50 BYTE)
)
[code].......
When I query dba_tab_partitions. I get this result
select table_name, partition_name, high_value, high_value_length from dba_tab_partitions where table_name = 'BIG_TABLE1' ;
table_name partition_name high_value HIGH_VALUE_LENGTH
------------- -------------- ---------- -----------------
BIG_TABLE1 BIG_TABLE_2003 1000000000 10
BIG_TABLE1 BIG_TABLE_2004 5000000000 10
BIG_TABLE1 BIG_TABLE_2005 MAXVALUE 8
3 rows selected.
Now my question is why do I see max_value_lengh=8 when my column value is 10. I don't get any error. But I do like to understand it.
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Apr 12, 2013
At 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.
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Nov 15, 2013
Database 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
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Aug 16, 2012
I would like to inquire how do I code my select statement if my user enter a search date range(search startDt: 01/08/2012 and search endDt :30/09/2012) and I will like to retrieve only the 7records out from my table as shown below ?
STARTDT_ ENDDT_
01/08/2012 01/08/2012
01/06/2012 31/12/2012
01/08/2012 01/08/2012
01/09/2012 01/09/2012
01/09/2012 31/12/2012
01/07/2012 01/07/2012->not retrieved out
01/08/2012 01/08/2012
01/01/2012 31/12/2012
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Aug 8, 2013
select to_date('28-FEB-2013') - TO_DATE('01-FEB-2013') FROM DUAL
gives me 27 days, what should I do to get 28 ? meaning include both the start and end dates in the range ?
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Jul 26, 2011
Let's say I have this table:
create table TEST
(
CF VARCHAR2(16),
START_DATE DATE,
END_DATE DATE
)
with
insert into test (CF, START_DATE, END_DATE)
values ('ME', to_date('01-01-2011', 'dd-mm-yyyy'), to_date('31-12-2010', 'dd-mm-yyyy'));
I need make a select where I get n rows, where n is the number of trimesters that compose the date interval in the table. Each of the returned rows must have as start_date/end_date the boundaries of that trimester.(ALL start dates are the first day of a month, and all end dates are the last day of a month)
In this case I need to get:
ME - 01/01/2010 - 31/03/2010
ME - 01/04/2010 - 30/06/2010
ME - 01/07/2010 - 30/09/2010
ME - 01/10/2010 - 31/12/2010
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Sep 17, 2012
I studied the documentation and many websites about DBMS_JOB but I am still confused.How do I schedule a procedure to run i.e. every sunday 10:00 AM ?This is what I tried:
DECLARE
X NUMBER;
BEGIN
SYS.DBMS_JOB.SUBMIT
(
job => X
[code]...
Is the Interval related to next_date ?
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Jun 3, 2010
I am studying Oracle® Database VLDB and Partitioning Guide 11g Release 2 (11.2),
ORA-14767: Cannot specify this interval with existing high boundsby giving an example other than given in the above mentioned document.
the example given in the document is as follows:
To increase the interval for date ranges, then you need to ensure that you are at a relevant boundary for the new interval. For example, if the highest interval partition boundary in your daily interval partitioned table transactions is January 30, 2007 and you want to change to a monthly partition interval, then the following statement results in an error:
CREATE TABLE transactions
( id NUMBER
, transaction_date DATE
, value NUMBER)
PARTITION BY RANGE (transaction_date)
[code]/...
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Feb 4, 2013
I have a cost data for effective date range as below.
MODEL_NOTIER_COSTEFFECTIVE_START_DATEEFFECTIVE_END_DATE
I3 3770 265 2/3/2013 3/31/2013
I3 3770 269 4/1/2013 5/4/2013
This data needs to be represented in a SQL report as below. The Date Range in the below i.e., Starts with FEB, by checking against the sysdate.. That is from sysdate it will display the Quarter data for 4 months as below.
MODEL NOFEB FY13MAR FY13APR FY13MAY FY13
I3 3770 265 265 269 269
Currently I am using a procedural logic to populate data into a different table in the above format. Is there any method to do with a single SQL using PIVOT. Below given is the table structure and Insert scripts.
CREATE TABLE ITEM_TAG(MODEL_NO VARCHAR2(50), TIER_COST NUMBER(13,4), EFFECTIVE_START_DATE DATE, EFFECTIVE_END_DATE DATE );
Insert statements
Insert into ADMIN_COSTPL_OWNER.ECAPS_ENTITLEMENT
(MODEL_NO, TIER_COST, EFFECTIVE_START_DATE, EFFECTIVE_END_DATE)
Values
('I3 3770', 265, TO_DATE('02/03/2013 00:00:00', 'MM/DD/YYYY HH24:MI:SS'), TO_DATE('03/31/2013 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into ADMIN_COSTPL_OWNER.ECAPS_ENTITLEMENT
(MODEL_NO, TIER_COST, EFFECTIVE_START_DATE, EFFECTIVE_END_DATE)
Values
('I3 3770', 269, TO_DATE('04/01/2013 00:00:00', 'MM/DD/YYYY HH24:MI:SS'), TO_DATE('05/04/2013 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
COMMIT;
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May 7, 2012
I want my user to be restricted for entering duplicate time within two times.
create table asd(dt_frm date,dt_to date);
insert into asd VALUES(to_date('01-04-2012 08:00','dd-mm-yyyy hh24:mi'),to_date('01-04-2012 10:00','dd-mm-yyyy hh24:mi'));
insert into asd VALUES(to_date('01-04-2012 09:00','dd-mm-yyyy hh24:mi'),to_date('01-04-2012 11:00','dd-mm-yyyy hh24:mi'));
now in the second insertion I want to alert the entry user that 9am already falls in the saved record which is 8am to 10am and so that this record can't be saved.
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Jul 14, 2010
How to display date every monday within date range
DEsc start date end date
XXXX 1/2/2010 31/10/2010
output
date every monday
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Apr 5, 2011
I require to find the years between any given date range. For example what are the years between the dates '01/12/2010' and '01/02/2012'? Answer must be '2010,2011,2012'. how to code the query for this result?
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Dec 16, 2011
Problem:
Our term (strm) is dictated by the term_begin_dt and term_end_dt dates but I want to keep selecting that term until 1 week before the next term opens and then switch to that term.
Basically, I don't want any gaps between a term.
Output:
select strm when sysdate is between term_begin_dt and term_end_dt (strm would equal 3943)
select strm until 1 week before the start of the next term (4027) (strm would equal 3943)
select strm when 1 week before term_begin_dt (strm would equal 4027)
Repeat for the next term and so on 12/16/2011
select strm
from term
where trunc(sysdate) between trunc(term_begin_dt) and trunc(term_end_dt)
Output: 3943
12/17/2011 - 01/01/2012
select strm
from term
where ?
Output: 3943
01/02/2012 - 5/4/2012
select strm
from term
where ?
Output: 4027
Repeat.
Test Case:
CREATE TABLE TERM
(
STRM VARCHAR2(4 BYTE),
DESCR VARCHAR2(20 BYTE),
TERM_BEGIN_DT DATE,
TERM_END_DT DATE
)
Insert into TERM
(STRM, DESCR, TERM_BEGIN_DT, TERM_END_DT)
Values
('3943', '2011 Fall Semester', TO_DATE('08/22/2011 00:00:00', 'MM/DD/YYYY HH24:MI:SS'),
TO_DATE('12/16/2011 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TERM
[code].....
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Nov 15, 2010
I need to know the counts(into buckets) for each event_date for a given event_id.
I have 4 buckets that I'm trying to calculate
1. Past (from Today)
2. Today
3. > Today but within 3 days in the future
4. More than 3 days in the future
WITH event_data AS
(SELECT '1' event_id, SYSDATE - 1 event_date
FROM dual
UNION ALL
SELECT '1' event_id, SYSDATE
FROM dual
[code]....
Sample Output:
EVENT_IDPASTTODAYWITHIN_3_DAY_WINDOWOUTSIDE_3_DAY_WINDOW
1 111 1
2 102 0
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Nov 1, 2011
I am trying to write part of an SQL where it gives me a count of bookings in any 6 month period made from the first booking.Example of records
enquirynumberenquiryaddresssubjectcodebookingdate
613651 Burberry AvenueBCHR20/10/2008 07:00:00
613801 Burberry AvenueBCHR20/11/2008 07:00:00693021 Barberry AvenueBCHR07/09/2009 07:00:00
I am so far getting 3 as a count result based on SQL below. I want the count to return 2 (because its inside the 6 month range):
SELECT
ce1.enquirynumber,
ce1.enquiryaddress,
es1.subjectcode,
b1.bookingdate,
(SELECT count(b2.bookingdate)
[code]....
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May 16, 2013
I would like to design a date range query where the beginning of the week is always sunday and the end of the week is always monday.
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Aug 14, 2013
I am trying to replace a date range in a query. Don't understand why it's not working, below is the dummy query for the same:
/* v_Employee:= 'select emp_name from employee_table where Join_Year=~Replace1~ and Release_Month <=~Replace2~';
v_Replace1:=2013;
v_Replace2:=7;
pos := 1;
WHILE (INSTR(v_Employee, '~', 1, pos) <> 0) LOOP
IF (pos = 1) THEN
[code]....
Since actual code is like CLOB type, so I have not provided the same. Here after executing this query i found that v_Employee query is getting replaced by v_Replace1 at both of his position i.e "select emp_name from employee_table where Join_Year=2013 and Release_Month <=2013"
But my actual result should: "select emp_name from employee_table where Join_Year=2013 and Release_Month <=7"
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Nov 28, 2012
I'm trying to compare a date and time within a certain range.
If the sysdate date/time range falls within the range of the values within the database tables then show a "Yes", otherwise, show a "No". The date works but the time doesn't seem to work. Maybe you can't use a "between" operator for time?
CREATE TABLE REGISTRATION
(
EARLY_REGISTRATION_START_DATE DATE,
EARLY_REGISTRATION_END_DATE DATE,
EARLY_REGISTRATION_START_TIME DATE,
EARLY_REGISTRATION_END_TIME DATE
[code]....
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Jul 7, 2012
I have a table which has 2 range partitions on a date column currently.
CREATE TABLE TABLEA (
RUN_TIME INT NOT NULL
)
PARTITION BY RANGE (RUN_TIME)
(
PARTITION DATAONE VALUES LESS THAN (20110101000000) TABLESPACE SPACE1
PARTITION DATATWO VALUES LESS THAN (MAXVALUE) TABLESPACE SPACE2
);
I am planning to drop one partition i.e DATAONE. So table will have one partition left for MAXVALUE. Does it make sense to have a partition with MAXVALUE? Isn't it same as TABLEA in terms of number of records? TABLEA is also in tablespace SPACE2. Should i remove partition DATATWO also? If i have to what is the best way to move all DATATWO records to base table TABLEA?
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Feb 3, 2011
We have a table with timestamp column and having millions of records.We want to create a materialized view or query, which can give count based
-on some group by columns from table and
-group by on condition (if count > 1000) and
-group by on condition (if timestamp range for that group is > 1hr)
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