Create Partition without Range (data Not Matching Other Partitions)
Feb 21, 2013
I would like to cretae 3 partitions for a table
partition 1 = < 2011
partition2 = <2012
partition 3 = any other value not staisfying partition 1 and partition 2
i would like to know how to create a partition 3 without specifying the range so that the data which are not coming under the range of other partitions (Partition 1 & 2) will automatically goes to this partition 3.
Also in the above case if i insert data of year 2009 then where will it go , to partition 1 (or) 2 since both of them matches the condition (<2011 and <2012) (or) do i need to use between clause while creating partitions?
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?
My developer came with a requirement of creating partitions on a table which has 40 million records. His exact requirement is to create as many as partitions in such a way that 1 partition should not exceed 5k-10k records and these records should be inserted/updated on the same date (i.e. using a column as source_timestamp field). How to accomplish this?
mucking on an Oracle 11.2 database, simple range partitioning issue. Seems using a "complex" formula inside the AT clause annoys it? Or am I doing something wrong?
I create the table with RANGE partition just fine:
CREATE TABLE my_part_tab ( id number, sdate date ) PARTITION BY RANGE ( sdate ) ( PARTITION P2013Q1 VALUES LESS THAN ( TO_DATE('01-jan-2013','dd-mon-yyyy') ), PARTITION P2013Q2 VALUES LESS THAN ( TO_DATE('01-jul-2013','dd-mon-yyyy') ), PARTITION P2013Q3 VALUES LESS THAN ( TO_DATE('01-oct-2013','dd-mon-yyyy') ),
[code]...
Table created.(and yes, I'm aware of INTERVAL option that'll do this next part "automagically", however, INTERVAL and REFERENCE partitioning are incompatible, and the child table is using REFERENCE partition). to make things easier on DBA for future, I'm trying to create a script that makes added a year's worth of partitions less manual.So far, I have the following working:
ACCEPT lYear PROMPT "Add Paritions for which calendar year?" ALTER TABLE my_part_tab SPLIT PARTITION PMAX AT ( TO_DATE('01-apr-&lYear','dd-mon-yyyy') ) INTO ( PARTITION P&lYear.Q1,PARTITION PMAX ); ALTER TABLE my_part_tab SPLIT PARTITION PMAX AT ( TO_DATE('01-jul-&lYear','dd-mon-yyyy') ) INTO ( PARTITION P&lYear.Q2,PARTITION PMAX );
[code]...
But no luck ...Same issue with other variations:
ALTER TABLE my_part_tab SPLIT PARTITION PMAX AT ( (ADD_MONTHS(TO_DATE('01-jan-&lYear','dd-mon-yyyy'),12)) ) INTO ( PARTITION P&lYear.Q4,PARTITION PMAX ); ALTER TABLE my_part_tab SPLIT PARTITION PMAX AT ( (TO_DATE('01-jan-'||TO_CHAR(TO_NUMBER('&lYear')+1,'fm9999'),'dd-mon-yyyy')) ) INTO ( PARTITION P&lYear.Q4,PARTITION PMAX );
I couldn't either DROP or TRUNCATE the table partitions that were created. Here are the DDLs and DMLs I'm using.
Create table student(no number(2),name varchar(2)) partition by range(no) (partition p1 values less than(10), partition p2 values less than(20), partition p3 values less than(30),partition p4 values less than(40)); Insert into student values(1,'a'); Insert into student values(11,'b'); Insert into student values(21,'c'); Insert into student values(31,'d');
When I do the following query, it returns data.
SELECT * FROM STUDENT PARTITION(p1);
But, when I try to perform any of the following queries, it says invalid partition name.
ALTER TABLE STUDENT DROP PARTITION p4; ALTER TABLE STUDENT TRUNCATE PARTITION p3;
I am using Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit
I have a table where multiple combination of records are store and i want to display data in range format as below, there is any way to group data as below.
I have in my database table 2 important date columns: StartDate (Not null) and EndDate(Allowed Null).I want to ensure that all records in the table would always create perfect contiues date ranges with no holes inside.Wor example there may not be records [1-may..1-may, 3-may-...] because there would be a hole [2-may...2-may]. Holes are not allowed.
And overlapping is not allowed, for example [1-may..1-may, 1-may-2may, 3-may-...] is not allowed because overlapping occures on day 1-may. Overlapping and holes are not allowed. But it is allowed that table has no records at all. But all DML manipulations with existing records must ensure that overlapping and holes won't occur.How to write such check? How to ensure that data ranges would stay continous with no holes and no overlaps?
I Know we can create dynamic partitions on table in oracle 11g. Is it possible to create normal partition and sub partition both dynamically.I have to create Normal partition range on date and sub partition list on Batch ID (varchar).
I have dcs_sku table .The record count is 50 thousand in that table.My requirement is to fech every row,create an xml out of it and post the data to some third party.As the count is very huge,I can't select the entire record and do the operation at a time.way which I will run the sql query in a loop,which will fetch 1st from rown 1 to row 1000,next 1001 to 2000,2000 no 'n' row...
I tried the below query:
select * from dcs_sku where rownum between 1 and 200...This gave me the 1st 200 rows and worked fine.
but the moment I changed the query to :
select * from dcs_sku where rownum between 201 and 300:::No result was coming up.
i create form on which 3 window, 3 Canvas, 3 blocks are there.
1)first block contain 3 items from_date and to_date(nondatabase)and find button
2)second block contains 3 items segment1, quantity and payment_terms
when i enter 2 dates and click on find button 2nd window open. segment1 and quantity between this 2 dates comes from base table like
select segment1,quantity from po_lines_all pll, mtl_system_items mts where pll.ITEM_ID=mts.INVENTORY_ITEM_ID and creation_date between :FROM_DATE and :TO_DATE
and payment_terms should enter manually
3)2nd block contains summary button when i click on it, it save segment1, quantity, payment_terms and open new window which contain segment1 ,qty, payment_terms and when i click on summary button data comes from custom table which group clause means
suppose
item qty terms a 2 2days a 3 2days b 3 3days
then on third form i shows like this a 5 2days b 3 3days
i done all this things but problem is that
suppose once data between 21-aug-2010 and 24-aug-2010 comes on second form , i enter payment_terms and save it. sumaary form also run properly but if another user enter date between 22-aug-2010 and 30-aug-2010 then it will shows data between 21-aug-2010 to 24-aug-2010 from custom table i.e with payment terms as earlier it save and from 25-aug-2010 to 30-aug-2010 it shows data from base table
like
item qty terms date a 2 2days 21aug a 3 2days 22aug b 3 3days 24aug b 4 NULL(ENTER MANUALLY) 26aug c 5 NULL 27aug
formatting the data.I want to group the below table data based on the Grade column for a header_data with start_time and end_time displayed in range. I was trying with group by, partitions etc but no luck. I use version 10gr2.
As per Article mentioned in Oracle Base,I have converted non-partitioned table (1 million data) into range-partition table,but,I don't see performance improvement in explain .
i have two table menu_user_d and emp_master , the requirement is i need to match names from both these tables like i want want to match menu_user_d.user_desc to emp_master.emp_name to get the emp_id and update the correct emp_id into menu_user_d.user_emp_id , i have prepared a test case and wrote one query but could'nt succeed in getting all the matching names, is there a way i can do this correct matching and then update it automatically.
SQL> insert all 2 into menu_user_d(user_id,user_desc,user_emp_id) values ('ARIF','Mohammed Arif',null) 3 into menu_user_d(user_id,user_desc,user_emp_id) values ('wajahat','Wajahat',null) 4 into menu_user_d(user_id,user_desc,user_emp_id) values ('Imad','Imd',null) 5 select * from dual;
SQL> insert all 2 into emp_master(emp_id,emp_name) values ('7014','Md.Arif') 3 into emp_master(emp_id,emp_name) values ('6777','Wajahat') 4 into emp_master(emp_id,emp_name) values ('1008','Imad El Kane') 5 select * from dual;
3 rows created.
SQL> commit;
Commit complete.
SQL> SELECT USER_ID,USER_DESC,USER_emp_id,EMP_id,EMP_NAME 2 FROM MENU_USER_d,EMP_master 3 WHERE UPPER(USER_DESC) LIKE UPPER(EMP_NAME) ;
I have a personname table which contains records of millions Person-names. My application has a requirment to return "any" 200 names that match the given Firstname and lastname entered by user.note the NOT actually "top-n", but "Any-N" , i.e. user wants "any" 200 names and NOT in any "specific order".
which is the best option to make most efficient search --
I have one table employee where there are 4 fields ,emp_code,emp_locn,emp_job_code,emp_job_desc the problem is i am trying to prepare a group reports based on location and emp_job_code there is a duplication of data in the emp_job_desc ,
For example there is a job_code E2 Which has two different job_descriptions for two different employees like E2-PAINTER-SPRAY, E2- PAINTER -SPRAY, another example is E1-rigger , E2-RIGGER and so on.Is there a method to match them together as one description.
I am using 11.2.0.3.0 version of oracle. I have not worked on regular expressions. During working on sql injection, I got set of below patterns which is feeded to some JAVA regx classes or utilityto restrict selective Request, based on patterns.below patterns and the characters which will be restricted by this pattern matching utility.
What I'm trying to do is make it so that it returns 'MATCH' when I pass a date that matches a date every two weeks starting Jan 01. Like Jan 01, Jan 15, Jan 29, Feb 12, etc. would return as MATCH Jan 02, Jan 03, etc. would return as NO_MATCH
The part in bold is what I'm having trouble figuring out.
select nvl( (select 'MATCH' from dual where 'date' = '2 week intervals starting Jan 01' ), 'NO_MATCH') from dual
