Use Oracle 11g As Log Database Using Partitioned Tables
Sep 25, 2012
we are looking to use oracle 11g as a log database using partitioned tables.
- The tables will have only a 3-5 columns of ~varchar(50) size
- We are looking at a volumn of ~33million rows (inserts) per day.
1) Will partitioned tables be able to handle this type of volume?
2) if yes, will a Composite Partitioning (using last modified datetime as range) then subparition with range be the best choice?
if this type of volume is too high for 11g, what are some of the alternative products we can use.
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Jan 2, 2013
I would like to ask about indexes in partitioned tables.I have indexes on a partitioned table, it is partitioned by range method i.e based on Creation date time.All select queries sent to the table use the Creation date time. I have an index on Creation date time.Here is an example:
SELECT col1, col2, col3
FROM table1 where
date_time BETWEEN TO_DATE ('20120117 10:00:00','YYYYMMDD HH24:MI:SS')
AND TO_DATE ('20120117 13:00:00','YYYYMMDD HH24:MI:SS')
AND frmt_name = 'XXXX'
AND sender = 'YYYYY'
AND nature = 'ZZZZ'
AND type LIKE '548'
ORDER BY date_time
WHERE ROWNUM <= 5000
[code]....
do I have to add DATE_TIME to all indexes (IX_NAME_FORMAT_TYPE,IX_CCY) or not?
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Jul 22, 2012
how DBMS_REDEFINITION online reorg works with partitioned tables. I have a table with 6 partitions and I want to reorrg whole table...
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Aug 23, 2010
understand on the below regarding partitioning table and indices.
1. How to know if each partition have LOCAL index or Global index?
I had the above question duw to the beloe reason :
I have a table with 130 partitions and 7 indices. When checked the DBA_IND_PARTITIONS it lists down only 1 index name (which distinct) for all the 130 partitions.
Does it mean it is a Global index? If Global index, is it partitioned? How to get those information?
2. Assuming, if i have LOCAL indices for every partitions, from where i shall nail down the name of each local index and how would i get the detail of referencing Global index?
3. By which type a table was partitioned? LIST,HASH,RANGE ?
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Apr 4, 2011
I created a mv for one of the partitioned tables but on viewing the mv capabilities it still shows PCT is set to 'N'.
create materialized view MV_summary_SEC
refresh fast
start with sysdate
nEXT SYSDATE + 1/24
enable query rewrite as
[code]....
If i remove the sub query and create the mview like this,then PCT is enabled.
create materialized view MV_summary_SEC
refresh fast
start with sysdate
nEXT SYSDATE + 1/24
enable query rewrite as
select PERIOD , SUM(SUM_WEB_HITS)
from summary ,date_table
where PERIOD >= DATE_TABLE.CUR_DATE
group by PERIOD
Is it simply because oracle doesn't support PCT if the definition contains subqueries ?
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Feb 4, 2005
16:28:32 SQL> create bitmap index bp_idx_ag_id on transactions(type);
create bitmap index bp_idx_ag_id on transactions(type)
*
ERROR at line 1:ORA-25122: Only LOCAL bitmap indexes are permitted on partitioned tables
how to create bitmap index on partitiioned tables
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May 13, 2013
that are my biggest tables
Users use front end (called ESS Console) and when they try to open one of those tables they wait very long (really bad performance). Sometimes the GUI even hanging without displaying results.
Does Partitioned Tables feature works for better performance?
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Dec 13, 2010
I have installed oracle 10g software and created Database on RHEL 4. when i run the run.sql its successively done but im not getting tables. whats the prob.
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May 13, 2013
I am trying to attach lifecycle definitions to tables of Oracle EBS R12 database, using the "Refresh table list" option of ILM assitant.
Though its showing the refresh job running to completion, but its not displaying the list all of tables.
Tried it with narrowing the search for a single schema but no luck.
how to get the list of all tables or at least list of tables belonging to a schema in Oracle EBS R12.
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Sep 6, 2010
A question regarding analyzing behavior of partition table on Oracle -
Is analyzing different sub partitions within a partition is same as analyzing that partition and what about vice-versa?
Attached File(s)
untitled.JPG ( 9.2K )
Number of downloads: 3
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Nov 16, 2010
it's possible to retrieve the names of tables that contain similar information in an oracle database.
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Sep 10, 2012
RDBMS - 11.1.0.7, I it possible to convert indexes of a non-partitioned table to hash partitioned indexes by retaining table as non-partitioned?
If yes, is this what it is Creating a Hash-Partitioned Global Index - can be created for partitioned and non-partitioned tables?
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Nov 1, 2012
what is the best way to partitioned a non-partitioned table to partitioned table date wise? I have data from last four year?
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Feb 8, 2013
I have to enable oracle advance compression for existing table which PARTITION BY RANGE then SUBPARTITION BY HASH.
ORacle version: 11.2.0.2.0
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Sep 3, 2012
I came across an implementation where data from DB2 tables are moved to Oracle tables, for BI solutioning, using some oracle procedures called from MS SQL DTS packages which are scheduled jobs.Just being curious, can this be done using OWB or ODI rather than the above detour. I suppose there are some changes being done in those procedures before the data is being loaded into Oracle tables, can't this be done using OWB/ODI? Can it be scheduled too as jobs using OWB/ODI?
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Nov 19, 2010
I have one table in a particular database and will have to create another table in a different database. I will have to join these two tables from two different DB's.
How should I go about doing this? Is this a good practice? or is it always better to use a single DB?
What are the disadvantages of joining two tables from two different DB's?
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Feb 13, 2012
I had face the problem regarding to database structure changes..
I had a old database which contain multiple column for 1 empno. which contain multiple subjects and its total marks.
Now the new structure is like all subjects and total marks as a row.
Eg. OLD data Structure
EMPNO SUNBJECT_CODE TOTAL_MARKS
1111 S1 45
1111 S2 21
1111 S3 55
1111 S4 41
NEW DATA STRUCTURE
EMPNO SUB1 MARK1 SUB2 MARK2 SUB3 MARK3 SUB4 MARK4
1111 S1 45 S2 21 S3 55 S4 41
I have more than 1.5 lakhs records in my old data structure..
Is there any Possibilities direct from Sql or i have to do it manually in excel sheet?
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Feb 9, 2012
The database system they have has around 5000 tables. The majority of these are not used (it is an off the shelf package). What I am trying to do is get a list of all tables in the database BUT only those that contain records (not the empty tables) and then copy this to an excel spreadsheet. We use a tool called aquadata to run sql enquiry statements on.
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Jun 8, 2010
I need to find all the tables present in DB or Schema.
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May 18, 2010
i work on oracle 8i with around 950 tables in my database. when i export or import it gives me the no of rows exported / imported from each table. is it possible to take a print out of the no of rows in each table through a single query .
select count(*) from each table takes a long time , since there are 950 tables.
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Jan 28, 2011
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
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Jun 14, 2001
I am trying to describe all the tables in a database.We use desc or describe tablename; to describe a table, but what is the command to describe all the tables in a database (i don't need the system tables)
Once i log into sqlplus as a say ABC (SID or HostString) as a user then if i do a desc table name i get column name, data type and null not null etc but i i need that for all the tables in that ABC database..
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Jun 14, 2013
Was going through this and found that
“AUDIT DELETE ANY TABLE BY <username> BY ACCESS” or “AUDIT UPDATE ANY TABLE<username> BY ACCESS”
enable audit for delete and updates for given username/schema. I want to enable auditing on delete and update on my entire database.
Why? And have we tested it in our any of existing setup? I am thinking of “Trigger after delete” but again this logic gets struck at individual tables. It do not work simply once and all for complete database/all users/all schemas
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Aug 4, 2011
i want a query/function/procedure to check recently updated columns/tables in a database...
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Jul 1, 2013
I have 3 tables in the Oracle database( emp, employee, emp1) which has following record values in it.
empidenamejob
7369, 'SMITH', 'CLERK'
I would like to list these 3 tables thru SQL/PLSQL, having the above record values combination. Also, the name of the columns could be different in all the tables i.e. name could be 'ename' in Emp table , and 'name' in Employee table. Is there way to do this in SQL or PLSQL ?
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May 16, 2012
I have seen the below blog abut database driven menu in java. uRL..... look into the below tables and its data below.I have concerned inserting data in the tables and particularly about
ROLE_DETAILS,ROLE_MASTER and EM_MENUMAS data.
select
level lvl,
ID, NAME,
lpad(' ', level * 14, ' ') || NAME menu,
parent_NAME,nodetype, page_name from em_menumas
[code].....
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Jan 8, 2013
How to know weather table is partitioned or not ? Is there any data dictionary view to know the information about the Partitioned type,keys on table ?
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Mar 14, 2013
I have a table like this:
CREATE TABLE CARGA_P_RECARGA_NEW1
(
TELE_NUM VARCHAR2(10) NOT NULL,
FECHA DATE NOT NULL,
[Code].....
Then I tried to insert some rows in that table, every insert statement is like this:
INSERT INTO CARGA_P_RECARGA_NEW1
VALUES
('3134769595','20/01/2013 07:22:50','1107','CONFB_20121121_20121122175002 60000000000000000090.TXT',0,16,'8327--7991284',1);
Every insert I executed had the month 01 because I expected to query results only from partittion p_0113 but nevermind how query I execute, the result is always the same. I mean if I excute this statement:
SELECT * FROM CARGA_P_RECARGA_NEW1 P_0113;
I get the same result when I execute any other like this:
SELECT * FROM CARGA_P_RECARGA_NEW1 P_0213
What is the error here ?
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Feb 22, 2013
Using Oracle 11.2.0.3
We are evaluating partition strategies with view to achieving performance gains in reporting in particular. How efficient are partitioned indexes in this regard e.g.
just partitioned indexes on an un partitioned table.
One large fact table with durrogate keys on which have bitmpa indexes which link to unique key in associated dimensions. Considering partitioning the bitmap index which links to the largest dimension and similarly partition the dimension key on largest dimension.
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Apr 26, 2013
We have a partitioned transaction table in our Datawarehouse environment which has the following partition strategy
SCHEME=DATE-HASH
GRAIN=DAILY
SUBGRAIN=NONE
HASH=8
FROM=31/12/2011
We recently had to delete data from the table. This was a simple delete statement with a where clause and without taking into consideration any partition/subpartition clauses. Post committing the delete we have a count mismatch problem with two queries in particular
select count(0) count_without_parallel FROM TRANSACTION_TABLE t;
--THIS RETRIEVES *15774811* ROWS
select /* parallel(t,default) */count(0) count_with_parallel FROM TRANSACTION_TABLE t+
--THIS RETRIEVES *15777617* ROWS WHICH IS THE ACTUAL EXPECTED COUNT.
I also ran the following just to summarize
select (select count_with_parallel from (
select /* parallel(t,default) */count(0) count_with_parallel FROM TRANSACTION_TABLE t))+
-
+(select count_without_parallel from (+
select count(0) count_without_parallel FROM TRANSACTION_TABLE t)) as false_difference
from dual;
The difference in *2806* rows as expected.To re-affirm my counts I ran
select /*+ parallel(t,default) */
'count_on_t',count(*) from TRANSACTION_TABLE t
group by 'count_on_t'
order by 1;
--THIS RETRIEVES *15777617* ROWS
Removing the parallel hint reverts back to the lesser count. Not sure what is wrong but something prevents the query from parsing the whole table and/or partitions and subpartitions.
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