Oracle RAC support more then one database

My company's requirement is to have multiple database, instead of multiple schemas in the same databsae. The only reason to have multiple database is to support different applications with different database versions. for eg. One application sitting in Oracle RAC with have version 10.02.0.0. and other applications will have 10.02.0.2.

You can have multiple instances on a node or multiple databases on one RAC cluster. However a more important factor that should be considered is to ensure that the servers are capable of handling the additional workload.
Also to consider is the software compatibilities between various versions of Oracle RDBMS, ASM and the Oracle Clusterware.

Similar Messages

Oracle RAC with more then two nodes?

Hello,
knows anybody a reference client project that use Oracle RAC with more then two nodes on a Linux environment?
Many thnaks!
Norman Bock

Hello Norman,
XioTech is a SAN company that has a project called "THE TENS". They configured and ran a 10 node RH Linux Oralce 9i RAC. I understand they want to see if 32 are possible. I am sure if you ask them, they would be happy to give you the details.
http://www.xiotech.com/
Cheers

How To connect More Then One database

How To Connect More the One Database In Single form.
I want to use Access And Oracle In the Same Form.
I want to Transfer data from Access file To oracle database.
Chirag

Hi,
You can do this using EXEC_SQL package. Please see Note 115540.1 on metalink which describes how you can connect to Ms Access and Oracle using EXEC_SQL.
Regards
Kavitha Prakash
Oracle Support

Supporting more then one system with Mac

I have 2 other people in my household and they sign on to my network with no problem, if I try to sign on while they are on I can't...I have been told by verizon and Belkin both that is not my router,,,Why can't I signon when anyone else in my house uses my network??

....but Macs don't have this problem!
Why Windows?
I'm afraid of someone running into the same problem as ed2345 in my house. I am the only Admin (for a good reason) and my account is password protected. So a restart would be required if I am not there to take care of it.

Creating more than one database user in oracle cloud

I hv created an adf application, in which there are 4 models. each model is connected to different database user, where SID is same for all user. These users have some number of tables, which are used as entity and view in model project in adf application. My query is:
I hv activated oracle cloud service for database and java. i want to deploy my adf application on cloud. so, how can i create more than one database user in cloud as i do in oracle db 11gr2? So that my all models will be connected to different database user in cloud.
Also, which service name should i use in model.jpx? I hv used mydb as service name on my local machine.
pls, help me to go ahead!!!!!!!!

Hi Ajaykumar,
To ensure you receive an accurate response to your query, I believe it would be best raised on the Oracle Java Cloud Service forum, here:
Oracle Java Cloud Service
Regards,
Hilary

How to retrieve more then one record from database

I am doing a SELECT FROM WHERE SQL statement on a database which returns more then one record. I want to retrieve certain column values from the selected records. How do I do that? If only one record is returned, I know I can do a data operation with operation set to 'Get-Retrieve Values from Record' and Record to operate on set to 'Current-Use current record'. I need to find out how to configure to data operation window in the case more then one record is returned by the preceding SQL statement. Depending on the number of records returned, I can dynamically create array variables to store the 'to be retrieved' column values, just dont know how to retrieve them.
Any help will be greatly appreciated.
Thanks
Anuj

I apologize for not being clear in explaining my problem, perhaps I should have posted an example. Anyways, I was able to figure out the solution. I was doing an 'Open SQL' statement which was selecting multiple records (rows) from a table in the dB. I was storing the number of records returned in a local variable. Then, I wanted to retrieve certain columns of all the selected rows (records). In the "Data operation", I was choosing the 'Record to operate on' as 'Current-Use Current Record'. Changing this field to 'Next-Fetch next record' fixed the problem. I then retrieved the values of those columns into a dynamically created array variable whose dimensions came from the local variable which stored the number of records returned in the SELECT SQL statement.
Thanks
Anuj

Oracle Data Miner - one project (workflow) more then one user ?

Hi,
Is it possible to have more then one DM user working on one DM project / workflow?
Example I have DMUSER1 and DMUSER2
DMUSER1 created project and some workflow. I need DMUSER2 to be able to modify that same workflow if possible simultaneously.
Something like in OWB where we can use more than one user on creating mappings.
How is that possible?.
Regards
Kreso

Hi Attila,
You can find the transform package at the following link:
http://download.oracle.com/docs/cd/E11882_01/appdev.112/e16760/d_dmtran.htm#i1013223
The ODM mining algorithms use techniques that are not exposed.
However, there are a lot of features in the db that are available to you to build your own.
As for an optimization package, I know there are some internal implementations but I am not aware of one in the db that is exposed.
Thanks, Mark

More than one database driver has been used

Hi everyone, I just want to link 2 tables, one in Oracle and the second is in Access, is this possible? Please help, tahnks a lot.
I got this message:
"More than one database driver has been used in this report. If you want to change the database drivers use Database/Set Location.
Please make sure that no SQL Expression is added and no server-side group-by is performed"
This is the query generated:
SELECT "A"."Field_in_A"
FROM "OracleDB"."A" "A"
SELECT `B`.`Field_in_B`
FROM `AccessDB` `B`

The above suggestions are good. You might also consider using a link table from MS Access to have the linking done right inside MS Access.
If you can store your access mdb file on the server where your Oracle database resides this will greatly reduce your network traffic. If the MS Access database must reside on a different machine it can still work but the gains won't be as great. Still, this is an efficient way to do this if you can.
To create a link table in MS Access choose, New, then 'Link Table'. In the Link dialog that appears you can choose ODBC. I recommend using the SQORA driver from Oracle that is installed with SQL Plus.
If you have to link in Crystal Reports instead you still can. However, all data from the Oracle table and Access table will be pulled to the client that hosts Crystal Reports and sorting will be done on the Crystal client.
You definitely have some good options though.

Common diemsions and more then one fact table join problem

Hi,
I have 5 common dimension and 3 fact table which in the same subject area. When I want to display results from more then one fact table sending database then query more then one and I think BI server join this two different result on OBI server. But I think if obi server sending database query for exp. WITH SAWITH0 .... the results get effective.
+++002002:2ea0000:2ea000f:----2009/03/14 10:12:59
-------------------- SQL Request:
SET VARIABLE QUERY_SRC_CD='Report';SELECT "- Common Dimensions"."Year Month" saw_0, "- Subs. Tariff"."Subscriber Current Tariff Type" saw_1, "- Common Measures".Arpu saw_2, "- Common Measures"."Gross Margin" saw_3, "- Call Out"."Callout Dur" saw_4, "- Case".Case_Info_Num saw_5 FROM "CUSTOMER PROFILING" WHERE ("- Common Dimensions"."Year Month" = 200901) AND ("- Subs. Tariff"."Subscriber Current Tariff Type" = 'PREPAID') ORDER BY saw_0, saw_1
+++002002:2ea0000:2ea000f:----2009/03/14 10:12:59
-------------------- General Query Info:
Repository: Star, Subject Area: CUSTOMER PROFILING REV, Presentation: CUSTOMER PROFILING
+++002002:2ea0000:2ea000f:----2009/03/14 10:13:00
-------------------- Sending query to database named CENTRAVEA (id: <<471777>>):
select T223282.DIM_TIME_MONTH_ID as c1,
T221204.DIM_SUBS_CURRENT_TARIFF_TYPE as c2,
avg(T223490.FACT_CP_ARPU) as c3,
sum(T223490.FACT_CP_GROSS_MARGIN) as c4,
sum(T223490.FACT_CP_CO_DUR) as c5
from
DM.DIM_SUBSCRIBER T221204 /* A_DIM_SUBSCRIBER */ ,
DM.DIM_TIME_MONTH T223282 /* A_DIM_TIME_MONTH */ ,
DM.FACT_CUST_PROFILING_PART3 T223490 /* A_FACT_CUST_PROFILING_PART3 */
where ( T221204.DIM_SUBS_ID = T223490.DIM_SUBS_ID and T221204.DIM_SUBS_CURRENT_TARIFF_TYPE = 'PREPAID' and T223282.DIM_TIME_MONTH_ID = T223490.DIM_TIME_MONTH_ID and T223282.DIM_TIME_MONTH_ID = 200901 and T223490.DIM_TIME_MONTH_ID = 200901 )
group by T221204.DIM_SUBS_CURRENT_TARIFF_TYPE, T223282.DIM_TIME_MONTH_ID
order by c1, c2
+++002002:2ea0000:2ea000f:----2009/03/14 10:13:00
-------------------- Sending query to database named CENTRAVEA (id: <<471881>>):
select T223282.DIM_TIME_MONTH_ID as c1,
T221204.DIM_SUBS_CURRENT_TARIFF_TYPE as c2,
sum(T223294.FACT_CP_CASE_INFO_NO) as c3
from
DM.DIM_SUBSCRIBER T221204 /* A_DIM_SUBSCRIBER */ ,
DM.DIM_TIME_MONTH T223282 /* A_DIM_TIME_MONTH */ ,
DM.FACT_CUST_PROFILING_PART1 T223294 /* A_FACT_CUST_PROFILING_PART1 */
where ( T221204.DIM_SUBS_ID = T223294.DIM_SUBS_ID and T221204.DIM_SUBS_CURRENT_TARIFF_TYPE = 'PREPAID' and T223282.DIM_TIME_MONTH_ID = T223294.DIM_TIME_MONTH_ID and T223282.DIM_TIME_MONTH_ID = 200901 and T223294.DIM_TIME_MONTH_ID = 200901 )
group by T221204.DIM_SUBS_CURRENT_TARIFF_TYPE, T223282.DIM_TIME_MONTH_ID
order by c1, c2
I have another subject area and which defined like this subject area contain two dimension and 5 fact table. If I want to display results on this subject area I can see best sql for my database
My problem is why this two different subject areas create different queries. I think following query is the best for database.
Thanks for your help
+++002002:2ea0000:2ea0015:----2009/03/14 10:30:06
-------------------- SQL Request:
SET VARIABLE QUERY_SRC_CD='Report';SELECT "Dim - Segments"."Marketing Segment" saw_0, "Fact - Campaign Response"."Fact Campaign Award Amount" saw_1, "Fact - Customer Interaction"."Issue Response Cost" saw_2 FROM "AVEA ALL" ORDER BY saw_0
+++002002:2ea0000:2ea0015:----2009/03/14 10:30:06
-------------------- General Query Info:
Repository: Star, Subject Area: AVEA ALL, Presentation: AVEA ALL
+++002002:2ea0000:2ea0015:----2009/03/14 10:30:06
-------------------- Sending query to database named AVEA ALL (id: <<474694>>):
WITH
SAWITH0 AS (select sum(T51461.FACT_CMPGN_AWARD_AMOUNT) as c1,
T49384.DIM_MARKETING_SGMNT_DESC as c2
from
DM.DIM_MARKETING_SEGMENT T49384 /* DIM_BI_MARKETING_SEGMENT */ ,
DM.FACT_CMPGN_RESPONSE T51461 /* FACT_BI_CMPGN_RESPONSE */
where ( T49384.DIM_MARKETING_SGMNT_ID = T51461.DIM_MARKETING_SGMNT_ID )
group by T49384.DIM_MARKETING_SGMNT_DESC),
SAWITH1 AS (select sum(T51503.FACT_CUST_INT_ISSUE_RES_COST) as c1,
T49384.DIM_MARKETING_SGMNT_DESC as c2
from
DM.DIM_MARKETING_SEGMENT T49384 /* DIM_BI_MARKETING_SEGMENT */ ,
DM.FACT_CUST_INTERACTN T51503 /* FACT_BI_CUST_INTERACTN */
where ( T49384.DIM_MARKETING_SGMNT_ID = T51503.DIM_MARKETING_SGMNT_ID )
group by T49384.DIM_MARKETING_SGMNT_DESC)
select distinct case when SAWITH0.c2 is not null then SAWITH0.c2 when SAWITH1.c2 is not null then SAWITH1.c2 end as c1,
SAWITH0.c1 as c2,
SAWITH1.c1 as c3
from
SAWITH0 full outer join SAWITH1 On SAWITH0.c2 = SAWITH1.c2
order by c1

I find solution on Oracle® Business Intelligence Suite Enterprise Edition Release Notes.
If you use a version of Oracle Database 10g Release 2 prior to 10.2.0.3, then you might encounter an issue with a Full Outer Join that causes severe database performance issues and appears to hang the database when the Oracle BI Server sends to the database SQL queries that include WITH clauses.
To work around this issue when using Oracle Database 10g Release 1 or 2, upgrade to Oracle Database 10g Release 2 Patch Set 2 (for 10.2.0.3). For performance reasons, this is the preferred workaround.
To work around this issue without installing Patch Set 2, modify the Database Features table using the Administration Tool. This configuration prevents the Oracle BI Server from sending SQL constructs that expose the issue in an unpatched Oracle Database 10g.
To modify the Database Features table:
In the Administration Tool, open the properties of the Physical Database metadata object.
Navigate to the Features tab.
Ensure the values for the PERF_PREFER_MINIMAL_WITH_USAGE and PERF_PREFER_INTERNAL_STITCH_JOIN entries are selected, that is, set to True.

How to configure EM Grid Control for more than one databases?

Hi,
I'm configuring EM on Oracle 10gRel1 on Linux. I have more than one databases in the server, and I want use IE at my PC to monitor the databases on Linux server. I can configure and access the Grid Control Console by emca for first database, but cannot configure for the second one, unless I remove the first one configurration. How can I configure EM for more than one databases?
Thanks.

Thank you everybody.
Yes, I'm talking about DBConsole rather than Grid Control (sorry for misuse the term). I managed to set up DB Console for every DB in the same Linux box (10Rel1). What I did is:
1) stop db console and agent with emctl
2) remove repository with RepManager
3) config with emca
Then I can monitor individual databases from my PC (but have to login with different port).
I'm thinking mybe I should use Grid Control instead.

How can I restrict more then one user to access the table?

Hi !
I have a problem and two solutions and I am a bit confused as to
which one is the best one and/or can there be any better way of
handling the problem ?
Problem : I have to update a key field of a table when I update
it in the form 5.0 screen. I am basically doing a maintenance of
a table and if a certain field is updated then the change has to
be reflected in two more tables. But the issue is that the field
is a part of the key in those two tables. So all I can think of
is that I need to insert new set or rows for that new value of
the field and delete the old set of records for old values of
the field.
There are two ways of doing it;
1.One option can be to explicitely define two cursors separately
and fetch the values in them one by one and then insert the new
records and then delete the old records in both the tables. This
I feel will be a cumbersome process both in terms of processing
time and the coding.
2.Second option I was thinking can be to create two flat tables
(without keys) and insert the values in them and update the
changed field there and then insert the rows in the respective
tables. Delete the old records in the main tables and delets the
records in these flat tables. This is a bit more faster and
easier to predict and code. This seems to be a better option for
me.
Any comments on these ?
In both the cases I was thinking of making some provision so
that more then one person can't update the table simultaneously.
Since if there are more then one persons doing the processing
then some inconsistency might creep into the whole process.
This is easier to do in the second process as if I check the
data in the flat tables and if there is some data then I can
presume that some one is doing the processing and I can ask the
other person to hold for a while. But in this case how can I
stop more then two people to simultaneously check for the empty
table and start inserting the record ?
I was just thinking of having a sepatare table having only one
field and this will be a key field and as the process begins the
process will insert a fix value say 'Y' in the key field and at
the end of the process the record will be deleted and this way
we can restrict the user to access the process more then one at
a time..? Since you can't have same value of the key in a table
more then once.
Any better way of handling it will be deeply appreciated.
How about locking the table at the begining and releasing the
lock at the end ? Will there be any issue in that? since I am
inserting and deleting the rows in the same transaction.
Comments welcome,
Shobhit
null

How about performing the update IN the database using a stored
procedure?
By using non-database fields on your form to get the
information, you can then call the procedure in the database to
perform the updates. If an error occurs in the procedure you
rollback, if necessary, and send a message or status back to the
form. If it succeeds you might wish to commit and then re-
execute the form's query -- using either the original key values
or the new key values...
null

Can I use more than one database connections in a jdeveloper project?

I use jdeveloper version 9.0.4.0 (build 1407),Can I use more than one database connections in one jdeveloper project?

9.0.4 is a fairly old version, so you may only find a few people who know how it worked.
Assuming you're using ADF BC, once known as BC4J, once know as JBO, in the project, and that the architecture hasn't changed much, then the answer is only 1 connection per project.
Programmatically you're free to use as many connections via JEE as you see fit, but ADF BC is limited to one connection.
CM.

Startup issue when having more than one database on machine

Startup issue when having more than one database on machine:
I’ve installed two databases.
When I shutdown one of the database and try to start it up using
Startup pfile=’…location..’;
I get ora-12514: TNS: listener does not currently know of service rquirest in connect descriptor
when I try it again after 3 seconds, I get a new error, ora-01041: internal error. Hostdef extension doesn’t exist
Shutdown and Startup gave no problems when I had one database. Why am I getting problems when I have two databases?
I’m using: show parameter pfile|spfile; to make sure I have the right parameter locations, so the error shouldn’t be from location.
I’ve never installed two databases on one machine, so maybe I’m making a first-timer’s error.
Anyone know how to get this working, i.e. starting and stopping DB without issues?
Using oracle 11gR2 on Windows 7 64bit, all is working normal.
Thanks,
Ayman
Edited by: aymanzone on Jun 15, 2011 9:27 AM

aymanzone wrote:
my oracle_sid is set to the name of one of my databases
echo %oracle_sid%
shows me the name of my first database.
Still not working though.
When I start the services of both databases using Services, I can connect and run queries from both of the database.
Edited by: aymanzone on Jun 15, 2011 11:47 AMFirstly ... the Oracle Service for the instance should be started for the DB you are trying to connect or start.
Next ... from the command prompt:
set oracle_sid=<Instance_Name>
sqlplus sys as sysdba
startup pfile='location of the respective db pfile'
Now, if you want to start or connect to another DB which is on the same server (again assuming the Service is STARTED) ...
From the same command prompt session or other ....
set oracle_sid=<Other_Instance_Name>
sqlplus sys as sysdba
startup pfile='location of the respective db pfile'
Edited by: Srikanth on Jun 16, 2011 12:27 AM

How can i connect more than one database

i would like to connect more than one database one my laptop
now i have database one and sid=ddms
and i would another such as sid=ddmf
how can i connect two database on the same my laptop

I am not sure what you mean by after built? Are you trying to export data from one database and import it into another? If so, export it using data pump making sure you have the correct ORACLE_SID. Also be sure both database have to same character set. Then change the ORACLE_SID to other database, and run data pump to import the data into the other database. Hope that makes any sense...

Connect to more than one database?

Hi,
Is there a way to connect to more than one database from Oracle form (one form)? If yes, what's the best practice to do it?
Saad,

hi
u can modify Tnsnames.ora for that
example:
test1 =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = IP Address)(PORT = 1521))
    (CONNECT_DATA =
      (SERVICE_NAME = test1)
test2=
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = IP Address)(PORT = 1521))
    (CONNECT_DATA =
      (SERVICE_NAME = test2)
)

Oracle RAC support more then one database

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