Oracle 9i with 500GB data

Hi,
our company is planning a data warehouse and are planning to propose an Oracle solution. The database of the warehouse would initially be 200GB and will grow upto 1 terabyte. Can someone tell me what kind of hardware configuration should we go for? Can we look at Oracle9i on windows 2000 advanced server for it?
Regards,
Harini

My Priorities for this environment would be:
Multiple file volumes with multiple RAID Channels (You are going to want to partition or stripe your data as much as possible)
Multiple CPUs (will allow for Parallel Queries and Parallel Direct Dataloads)
64 bit CPUs that will allow for more memory addressing and thus more physical memory (More DB Buffers, Larger Shared Pool, More in memory sorts)
A secure and reliable 64 bit OS that will not require constant reboots to clear problems.

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Problem with updating oracle DB with java date thru resultset.updateDate()

URGENT Please
I am facing problem in updating oracle database with java date through resultset.updateDate() method. Can anybody help me please
following code is saving wrong date value (dec 4, 2006 instead of java date jul 4, 2007) in database:
ResultSet rs = stmt.executeQuery("SELECT myDate FROM myTable");
rs.first();
SimpleDateFormat sqlFormat = new SimpleDateFormat("yyyy-mm-dd");
java.util.Date myDate = new Date();
rs.updateDate("myDate", java.sql.Date.valueOf(sqlFormat.format(myDate)));
rs.updateRow();

I believe you should use yyyy-MM-dd instead of yyyy-mm-dd. I think MM stands for month while mm stands for minute as per
http://java.sun.com/j2se/1.4.2/docs/api/java/text/SimpleDateFormat.html
(If this works, after spending so much of your time trying to solve it, don't hit yourself in the head too hard. I find running out of the room laughing hysterically feels better).
Here is a more standard(?) way of updating:
String sqlStatement=
"update myTable set myDate=? where personID=?"
PreparedStatement p1= connection.prepareStatement(sqlStatement);
p1.setDate(1,new java.sqlDate());
p1.setInt(2, personID);
p1.executeUpdate();

Problem when trying to refresh oracle screens with latest data

hello experts,
i have one problem,i want to refresh the oracle screen with the latest data from the data
base.
It is a two stage process.At first step one user will select a row from the screen and then he will press a button .
now the second screen will appear and the detail of the employee will be displayed.
First step has been completed and the data is coming in the second form via parameters and i can see the full information of the employee.
Now i want to refresh the oracle form i.e. suppose if my dba has made any changes in the oracle table( EMP table) i want that after pressing the refresh button user can see the
latest data from the database.
in WHEN_BUTTON_PRESSED trigger i have written this codes.
enter_query;
execute_query;
but they are not giving the expected result.
And one more thing please suggest whether in the second form i should use database item
or non database item.
When i am using database item when i am trying to close second from one pop up is appearing
and asking that whether i want to save the changes.
please suggest how can i remove this message from my application.
Regards
Anutosh

Hi,
what data did you transfer via parameters to the second form ?
how did you populate the datablock in the second form ?
Typical solution would be:
(For my example the block is both forms is named EMP, and is based on the table SCOTT.EMP)
In Form 1, transfer the primary key-value of the current record to a global or parameter (will use global in my example):
e.g. you have a WHEN-BUTTON-PRESSED-Trigger with the following code:
<pre>
:GLOBAL.EMPNO:=:EMP.EMPNO;
CALL_FORM('FORM2');
</pre>
In Form 2, you have a WHEN-NEW-FORM-INSTANCE-Trigger with code:
<pre>
DEFAULT_VALUE('GLOBAL.EMPNO', NULL);
IF :GLOBAL.EMPNO IS NOT NULL THEN
GO_BLOCK('EMP');
EXECUTE_QUERY;
:GLOBAL.EMPNO:=NULL;
END IF;
</pre>
On block EMP in Form 2 there is a PRE-QUERY-Trigger with following code:
<pre>
IF :GLOBAL.EMPNO IS NOT NULL THEN
:EMP.EMPNO:=:GLOBAL.EMPNO;
END IF;
</pre>
And at last, in your refresh-button would be the following code:
<pre>
:GLOBAL.EMPNO:=:EMP.EMPNO;
GO_BLOCK('EMP');
EXECUTE_QUERY;
:GLOBAL.EMPNO:=NULL;
</pre>
Hope this helps

Safest Way to Penetration Test an Oracle DB with Potential Data Loss

Hi,
I was wondering what the safest way to protect Oracle from data loss when running a web application scan. We currently have an external company about to perform a web application scan and they warned us of potential data loss. However, we can't afford much downtime and our storage doesn't support things such as Copy on Write. What would you recommend? Do you think that something like putting the database in read-only mode for the duration of the test (2 hours) and enabling audit on all actions would be sufficient (we could then review the audit to see if any unauthorized calls were made)? Thanks.

If not running live you might consider restoring your database to before the test. But you need to have confidence this would work.
I assume your running live for the duration of the test.
Going read only might invalid the test, and your application might not be able to run read only without generating errors.
Examine and be aware of the flashback technologies available to you at your database version and which ones might be useful. In this context increase undo space/retention target might be helpful but dont dash off doing something at last minute.
Ensure you have checked out how to use logminer.
Consider not continously updating and standby database you have until test is complete.
Ensure your more recent backup is successful and you have checked your restore procedures and have contingency places in place.
In practice the web peneration test may attempt to change a small amount of data in a small number of records, but the agreement probably means they are not liabable if they dropped schema in the database!
If you have to correct data following their test then do so carefully. Doing the wrong thing (especially in a panic) can make a sitation worse, especially if you are doing something you are not familiar with. Often it may be better the data loss through the application itself.
If you do turn on auditing be aware of what it gives you before you turn in on, and beware any space implications.
I notice your are recently registered on the site ... this may mean you dont have much experience with oracle, you may be more of a system administrator for instance. No disrespect in that whatsoever. However especially if this is the case then remember in my opinion dashing to change something last minute statisically often does more harm than good overall and may be harder to undo.
Hope this helps.
bigdelboy
Edited by: bigdelboy on 28-Mar-2009 01:18
Edited by: bigdelboy on 28-Mar-2009 01:22

Oracle performance with increased data

I have a table1 that is being accessed by process 1 (a store proc). This process runs for 1 to 2 hours and that is normal. Now I am going to add anew table2 and create a new process 2 (again a store proc). Will this slowdown the process 1 in anyway? I will not be running the two processes at same time (if i did it would obviously mean process1 will slowdown). I am just looking at the increased data volume in my database. Will addition of more data slow down oracle even though I am adding in a different table?
The data I am talking here is huge. Both table1 and table2 each occupy almost 500GB. Each table has 200+ partitions. BTW, I am using 10g - 10.2.0.3.0.
Edited by: user6794035 on Aug 12, 2009 4:26 AM
Edited by: user6794035 on Aug 12, 2009 4:27 AM

user6794035 wrote:
why should CPU and resources come into play here? As I said nothing has changed except the data volume and two processes will not run at same time.
Consider there is no process2. I just have table 1 and process1. I just added another table of the size I mentioned above (500GB). Just the fact, that I added more data in another table will slow down Oracle's processing speed in anyway?Not until and while you are actually performing processing against that table. Your question seems to indicate that you fear that the mere presence of a table in the database causes a performance impact.

Call Oracle procedure with custom data type within Java and Hibernate

I have a custom date TYPE in Oracle
like
CREATE TYPE DATEARRAY AS TABLE OF DATE;
and I have a Oracle function also
like
CREATE OR REPLACE FUNCTION doesContain (list DATEARRAY, val VARCHAR2) RETURN NUMBER
IS
END doesContain;
In my Java class,
I have a collection which contain a list of java.util.Date objects
When I call Oracle function "doesContain", how to pass my java collection to this Oracle function ...
anyone can provide solutions?
Please !!!
Thanks,
Pulikkottil

Vu,
First of all you need to define your types as database types, for example:
create or replace type T_ID as table of number(5)Then you need to use the "oracle.sql.ARRAY" class. You can search this forum's archives for the term "ARRAY" in order to find more details and you can also find some samples via the JDBC Web page at the OTN Web site.
Good Luck,
Avi.

Importing data from Microsoft excel file to Oracle Database with Multiple Data Tables. Need expert advice and guidance

I posted a query on Importing data from Microsoft Excel to Oracle Database (Multiple Data Tables). I got some answer and reference from the forum.
I presented to my Oracle consultant and representative from Oracle Malaysia. They said impossible. I do not believe what they said. I do believe can be done.
Can someone help or direct me to an expert that can help me on this

e90f478a-c529-4c48-b189-51eebeaed477 wrote:
I posted a query on Importing data from Microsoft Excel to Oracle Database (Multiple Data Tables). I got some answer and reference from the forum.
I presented to my Oracle consultant and representative from Oracle Malaysia. They said impossible. I do not believe what they said. I do believe can be done.
Can someone help or direct me to an expert that can help me on this
We don't know the "query on Importing data from Microsoft Excel to Oracle Database (Multiple Data Tables). "
We don't know where you posted said query.
We don't know what "some answer and reference" you received "from the forum."
We don't know what it was that your "Oracle consultant and representative from Oracle Malaysia" said was "impossible".
So on what basis are we supposed to "help or direct" to "to an expert that can help "?

Updating Oracle table with info from Sybase query

I hope this is the correct forum for this question.
I am fairly new to Java and JDBC. I am trying to figure out what the best method for updating information in Oracle tables with data from a Sybase table. I would prefer to use Oracle’s transparent gateway but this is not an option my company will pay for so I am creating a java stored procedure and using JDBC to connect to the Sybase database.
The process I think I need to go thru is
1.     Query an Oracle table to get the records that need to be updated and the “key” information to query the Sybase table with.
2.     Use that result to query the Sybase database to get the fields that need to be updated in the Oracle table for those records.
3.     Update the records on the Oracle table with the data from the Sybase query.
I know I can just do this procedurally, row-by-row, but I was wondering if anyone knows of a way to accomplish this with SQL and no loops. Is there a way to make a result set available as a “SQL table” for another JDBC query?
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ResultSet Orars1 = orastmt1.executeQuery (OraQuery);
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ResultSet Sybrs = sybstmt1.executeQuery (SybQuery);
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This may not be possible but if anyone has done something similar and wouldn’t mind sharing I would appreciate it. If there is a “better” way of accomplishing this I am open to suggestions.
Thanks

you can try using cachedRowSet() for the Oracle side query.
The rows in this could be populated using the sybase side query's resultset and then all of this could updated into Oracle in one shot.

I have a Time Capsule with 2tb of storage, and an I-Mac with 500Gb. (which is at capacity) Can I use the Time Capsule to store data in addition to backing up the hard drive?

I have a Time Capsule with 2tb of storage, and an I-Mac with 500Gb. (which is at capacity) Can I use the Time Capsule to store data from my hard drive that I want to access later in addition to backing up the hard drive?

Can I use the Time Capsule to store data from my hard drive that I want to access later in addition to backing up the hard drive?
Yes, but if you move the "original" data on your iMac to the Time Capsule....then the "original" data is now on the Time Capsule disk.
When...not if...the Time Capsule disk has a problem, you have no backups for this data.
Perhaps a much safer plan might be to add an external hard drive attached directly to your iMac. Then, move the data to that drive from the iMac.
Now, Time Machine will back up both your iMac and the external hard drive so you have "originals" on one drive and backups on another. Would that plan work for you?

Problem with different resultset with same data and same query in Oracle 8.1.7 and 9i

Hello,
I have been using this query in oracle 8.1.7
SELECT
ID,
AREA_NO
FROM MANAGER_AREA MGR
WHERE COMPANY_ID = :id AND
(:value < (SELECT COUNT(ROWID)
FROM MANAGER_WORK MW
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(MW.END_WORK IS NULL OR MW.END_WORK >= SYSDATE)))
order by AREA_NO;
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I cannot use a Group by and a having statement over here. The problem with 'Group by' and 'having' clause is If I have to make a join between the two tables. When I use join then I get only rows that are linked to each other in the table.
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Amol.

Oracle Reports with XML output showing data as asterik character

Hello,
I'm trying to create an Oracle report with xml output. Here is the issue I'm having some of the columns in my report are of datatype number. When I run the report and generate xml file the values for those columns(datatype number) are showing as (*) character, other columns are showing fine. But when I run the report as text output then data is fine. I don't understand why this is happening.
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Can anyone please help me with the issue I'm having.
Thanks

If the links in your example report1 and report2
follow my format stated earlier
http://machine:port/reports/rwservlet/report=reportnam
e.rdf&destype=cache& paramform=htmlcss&server=<YourReportSe
rverName>&userid=scott/tiger@hrdb&desformat=pdf
This is what I believe
>
so http://machine:port/ is the port where
JBoss is running and
This should be the port that the report server is listening on
>
server=<YourReportServerName> is the name of
my oracle report server
so I call the above link in my current application
and the report would show up
Yes
>
that means (correct me if I am wrong) that my reports
would have to be deployed in OracleAS
Yes
>
I have to try all this yet as till this point I was
trying to run Oracle reports deployed in JBoss...
This may be possible, I am not sure.
>
Oracle J2EE Thin Client?
I am not sure what this is used for in your setup.

Storing data in oracle 8i with PtG

I want to store retrieved data in a database (oracle 8i) with Portal-to-Go?
Is it necessary to write an adapter and in that case where can I find information about adapters? Any help will be appreciated.
Thanks
null

OTN has some sample apps that show how to store documents in the database as CLOBs:
[list][*]Customizing Web Content
[*]B2B with XML
[*]Managing Web Content (CMS)
[*]XML Live Demos
[list]
Regards,
-rh

Data moving between Oracle 10g with CLOB fields

Hi all,
I have a trouble in migrate data between Oracle 10g with different platform. The worst thing is that I don't have a DBA account for the DB importing data. I think I can't use IMP or IMPDP in this way. So I seek help from sql developer, but it seems having another problem with CLOB data moving.
Re: EA2 : SQL Developer 1.5 : export data CLOB columns
in the thread, I found someone wrote this:
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I would like to ask:
1, What SQL Developer v1.5 EA2 is? Is it the Data Modeling one?
2, How to export table data with CLOB with SQL Developer v1.5 EA2? Since 4000 chars is enough for me to use.
OR any other method to export CLOB but not IMP / IMPDP ?
Now I am using the spool of sqlplus to export CLOB.
Many thanks,

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Have fun,
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Is it possible to retrieve data from an Oracle db with an LDAP query?

Our application uses an LDAP query to retrieve data from Microsoft Active Directory. Is it also possible to retrieve data from an Oracle database with an LDAP query?

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At least I have never heard of such a product which translate ldap query in sql query. But feel free to write your own one in perl :-)

Updating an oracle table with data from an xml string

Hi - I need help with the following problem:
We have a table in the database with a field of xml type. We are going to take each string that gets inserted into the xml type field in the 'xml table' and parse the data into another oracle table with corresponding fields for every element.
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Oracle 9i with 500GB data

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