We are using partition exchnage to swap individual partitions into table which then backed up.
This being done one partition at a time.
Is it possible to swap several partitions of a tabel in one go.
using Oracle 11.2.0.3
partioned by date, one partition of reach day.
Is it possible say to move the last 7 days partitions into the other table for backup using partition exchange?
I have more 100 partition in a table, I would like to query 10 partitions alone in single statement, Hope it could be possible like query data for single partitions, provide the syntax for the same.
Because if I try to query for all the partition then the query is Hanging due to the large no of data, then I can query single partition by partition then it takes more than a day. so, I would like query data for 10 partition in a single select.
I have a table that has 2 columns of type nested table. Now in the purge process, when I try to truncate or drop a partition from this table, I get error that I can't do this (because table has nested tables). how I will be able to truncate/drop partition from this table? IF I change column types from nested table to varray type, will it work?
Also, is there any short method of moving existing data from a nested table column to a varray column (having same fields as nested table)?
Initially 2008 to 2010 and 2009 to 2011 partitions are created, After that two more new partitions are created 2008 to 2009 and 2009 to 2010.
How can we move data from old partitions to corresponding new partitions.
We have a table with interval partition. This table is accessed very frequently. We are suppose to exchange partitions between this actual table from it's corresponding staging table.
In order to keep the newly created partitions empty, is there a way to restrict other applications from using it before we push data from staging table to it's actual table.
If I try create table from the following syntax
create table a as select * from table b;
Then I could get only base table structure alone, I would like to get partition syntax as well.
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?
View 2 Replies View RelatedI have tables in production which has got huge no of partitions(say more than 100), but I would like to extract table definiation along with mentioned few partitions(say 10 partitions) alone. How to do that, which way is the best to extract DDL with right format.
because when I use metadata package the format for the extraction is not good, is there a way to extract table definition with mentioned partition names.
How can we partition the existed table.
The table is like this
CREATE TABLE my_table (
id NUMBER,
description VARCHAR2(50)
);
[Code]...
I want to partition this table into 3 partitions.
The first partition should contain the values less than 3.
The Second partition should contain the values less than 5.
The third partition should contain the values less than 6.
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 to drop some partitions in table on production environment (to get free space). The environment have to be continuously available. I was considering of use ALTER TABLE ... DROP PARTITION ... UPDATE INDEXES but it is slow, because of use clause UPDATE INDEXES. Is there another possibility to remove these data?
View 2 Replies View RelatedWhat is the limit on number of partitions on a table.on many forums , 1024k-1 is given the maximum limit.But Exactly , I am not able to understand this 1024k-1.
View 2 Replies View Relatedhow to swap two values without using any other variable?
example:
v_a varchar2(10):=INDIAN;
v_b varchar2(10):='PHOTON';
so,how to swap these two values..
I got the below message in trace file. What does the line "swap info: free = 0.00M alloc = 0.00M total = 0.00M" trying to say?
I have
RAM=1.5G
Swap=3.5G
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production With the Partitioning, OLAP and Data Mining options ORACLE_HOME = /home/oracle
System name:Linux
Node name:linuxdev
Release:2.6.5-7.97-default
Version:#1 Fri Jul 2 14:21:59 UTC 2004
[Code]....
I've recieved a recent request wherein the requirement is to swap values between columns across multiple tables in a database.Following is a visual sample of what needs to be done.
Before Swaping:
Columns Values
TABLE1.IDENTIFIER MRN123
TABLE1.MEDICARENO CHI1234567
TABLE2.MRN MRN123
TABLE3.MRN MRN123
OTHERTABLE.MRN MRN123
After Swapping:
Columns Values
TABLE1.IDENTIFIER CHI1234567
TABLE1.MEDICARENO MRN123
TABLE2.MRN CHI1234567
TABLE3.MRN CHI1234567
OTHERTABLE.MRN CHI1234567
I have a need to make name field stored as "FirstName MI LastName" become "LastName, FirstName". How to do this in a select statement. Because of the application I will be running this in (DataStage), at this point in the flow, I am unable to call a stored procedure.
View 6 Replies View RelatedI am attempting to select back multiple values for a specific key on one row. See the example below. I have been able to use the sys_connect_by_path to combine the fields into one field but I am unable to assign them to fields of their own. See the example below
TABLE DETAILS:
Policy id plan name
111 A Plan
111 B Plan
111 Z Plan
112 A Plan
112 Z Plan
My desired result is to be able to show the output as follows
Policy ID Plan_1 Plan_2 Plan_3
111 A Plan B Plan Z PLan
112 A Plan Z PLan
We have to load 10 million rows in a table from another table based on the multiple joins. How much tablespace size we allocate to the table and for performance point of view how much should be the SGA size.
View 11 Replies View Relatedi have many partitions in one table. i need metadata for some of the partitions. We have any option to get the metadata for partitions only.because while selecthing the table meatdata i am getting long script.
View 2 Replies View RelatedI have a day based partitioned table TAB1.Let say for month Aug 2013 Partitions are like P010813,P020813,P030813 up to P310813.When gather stats job will run i want to analyze only the last 3 used partitions based on current date, this would be P180813,P190813,P200813. write a query which will give the last 3 used partitions.e.g.
If run query on 20-AUG-2013.P180813P190813P200813FOR 25-AUG-2013P230813P240813P250813
ALTER TABLE table_name DROP PARTITION (partition_1000);
ALTER TABLE table_name DROP PARTITION (partition_1001);
...
.........
......
ALTER TABLE table_name DROP PARTITION(partition_1320);(b
it is a delta partition,so trying to remove 320 partitions at once in pl/sql developer for a single table.
Like this i have to remove for more then 15 tables one by one, will this effect the database like filling up the archinve log destination by writing more logs.
kind of problems that i am going to face , as i am doing it on the production box directly.
Query to drop partitions on a table who have no.of rows as zero.
select 'ALTER' || '' || 'TABLE' || TABLE_NAME || 'DROP' || 'PARTITION' || PARTITION_NAME from dba_tab_partitions where TABLE_OWNER='xyz' ;
select count(*) from table_name partition (partition_name);
Lets say I have a table like the following -
ID--------DATE_TIME-----------------VALUE
101----- 01/01/2012 14:00:00 ---12
101----- 11/01/2012 23:00:00 ---17
101----- 13/01/2012 10:00:00 ---22
101----- 19/03/2012 08:00:00 ---7
101----- 19/03/2012 19:00:00 ---7
101----- 19/03/2012 20:00:00 ---7
101----- 20/03/2012 02:00:00 ---3
101----- 20/03/2012 03:00:00 ---3
101----- 21/03/2012 13:00:00 ---14
101----- 21/03/2012 14:00:00 ---14
101----- 21/03/2012 21:00:00 ---13
101----- 21/03/2012 22:00:00 ---13
101----- 21/03/2012 23:00:00 ---13
101----- 22/03/2012 00:00:00 ---13
I'm looking for a script to partition the data into sections where the VALUE is the same over a constant period of time with no breaks. I'd like to give each partition a value to identify it by.
So the outcome of the script would be the following -
ID--------DATE_TIME-----------------VALUE-----IDENTIFIER
101----- 01/01/2012 14:00:00 ---12----------1
101----- 11/01/2012 23:00:00 ---17----------2
101----- 13/01/2012 10:00:00 ---22----------3
101----- 19/03/2012 08:00:00 ---7------------4
101----- 19/03/2012 19:00:00 ---7------------5
101----- 19/03/2012 20:00:00 ---7------------5
101----- 20/03/2012 02:00:00 ---3------------6
101----- 20/03/2012 03:00:00 ---3------------6
101----- 21/03/2012 13:00:00 ---14----------7
101----- 21/03/2012 14:00:00 ---14----------7
101----- 21/03/2012 21:00:00 ---13----------8
101----- 21/03/2012 22:00:00 ---13----------8
101----- 21/03/2012 23:00:00 ---13----------8
101----- 22/03/2012 00:00:00 ---13----------8
I was trying to do something with trunc(date_time) but that didnt work out right as the blocks of data can carry over several days as seen in the rows with IDENTIFIER = 8.
Can we add partitions for materialized views like tables ? ALTER TABLE owner.tablename ADD PARTITION p1 VALUES LESS THAN (2012,12);
Like is there any syntax for mview ALTER TABLE mv.mviewname ADD PARTITION ..... ?
I created a materilaized view with partitions and i need to add partitions dynamicaaly using stored procedure for that i need to check whther the partiions with the same name existing.where can i see the partition names for a materilaized view is there any table like "USER_TAB_PARTITIONS"?.if the same query exists in the forum
View 3 Replies View RelatedI 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?
I am working on an archiving strategy. I want to roll off transactions that are older than seven days, but only if they are flagged as Completed. The numbers of transactions are very large so this is a worthwhile venture.
The only strategy I have been able to come up with so far is to partiton on date. Then when 7 days comes up, sweep the about-to-be archived day for the few remaining not Completed transactions, put those into a new table (a new version of this partiton) and switch partitions. Each day I do this until the older parititions are empty.
writing a trigger to drop partitions with zero rows which are older than 6months and drop the local indexes and rebuild the global indexes for any schema in a databaase ?
I have tried the below code :
declare
v_statement varchar2(600);
v_rows number;
begin
for x in (select *
from dba_tab_partitions
[code]........
I want to avoid using row number and also want to dynamically select a schema when executing the script.
In my database,stale_percent is set to 10. and i have table which has partition. i have dropped table partition dropped which has 10% of data. I would like to know whether oracle will consider only insert,update,delete as stale percent or will it include the dropping paritition data also. Because my stats gather is not running. When i include drop partition data it exceed 10% of stale_percent,But excluding dropped partition it is not exceeds 10% of stale.
TABLE_NAME PARTITION_NAME SUBPARTITION_NAME INSERTS UPDATES DELETES TIMESTAMP TRU DROP_SEGMENTS
------------------------------ ------------------------------ ------------------------------ ---------- ---------- ---------- ----------- --- -------------
sample_DATA_DATA 235825577 0 0 11-NOV-2012 NO 3
test_DATA_DATA 811618472 0 0 11-NOV-2012 NO 12
sample_DATA_DATA SYS_P2665099 3005966 0 0 11-NOV-2012 NO 0
sample_DATA_DATA SYS_P2665119 3873671 0 0 11-NOV-2012 NO 0
[code].....
I have a table with 1 million rows,all rows are based on the gender male and female.
So that i have done two partitions based on the gender Male and Female.
After that i performed the query
SELECT COUNT(*) FROM student WHERE gender='MALE';
In that case performance is improved,because oracle scans a single partition instead of scanning entire table.
Suppose i have partitioned according to the date column and i performed the query
SELECT COUNT(*) FROM student WHERE gender='MALE';
In that case performance will be improved or not