Connect to more than one Database from portal

I need to reach more than one database from my portal. How is this done?

You have several options depending on what you want to do with the data.
1) Omniportlet: you can specify on a per portlet instance basis to what DB you want to connect (JDBC).
2) Programmatic Java portlet: you can create as many JDBC connections as you like.
3) DB links: you can build data-driven portlets on database objects, accessed via DB links.
4) Programmatic PL/SQL portlet: you can build programmatic PL/SQL portlets on database objects, accessed via DB links.
Peter

Similar Messages

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)
)

While connecting to more than one database

what shold i do while connecting to more than database...
shold i implement it using serializable class
or shold i pass the connection object a session variable
give me some exaple for connecting to more than one database..
sreekanth

Sometimes you can use Connection.setCatalog(...) to switch.

VS 2005 CR integrated report connection with more than one database

Hello,
I am using VS 2005 to make a reporting application. I am using the Crystal Reports Viewer and I need to know how to integrate the report login information for more than one database. Here is the VB code I have for one connection:
Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared
Partial Class _Default
    Inherits System.Web.UI.Page
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
        ConfigureCrystalReports()
    End Sub
    Private Sub ConfigureCrystalReports()
        Dim myConnectionInfo As ConnectionInfo = New ConnectionInfo()
        myConnectionInfo.DatabaseName = ""
        myConnectionInfo.UserID = ""
        myConnectionInfo.Password = ""
        myConnectionInfo.ServerName = ""
        Dim reportPath As String = Server.MapPath("CleaningReport.rpt")
        CrystalReportViewer1.ReportSource = reportPath
        SetDBLogonForReport(myConnectionInfo)
    End Sub
    Private Sub SetDBLogonForReport(ByVal myConnectionInfo As ConnectionInfo)
        Dim myTableLogOnInfos As TableLogOnInfos = CrystalReportViewer1.LogOnInfo
        For Each myTableLogOnInfo As TableLogOnInfo In myTableLogOnInfos
            myTableLogOnInfo.ConnectionInfo = myConnectionInfo
        Next
    End Sub
End Class
I am new to visual basic and really appreciate any help.
Thanks

Hi Steve,
Test by creating one more function ConfigureCrystalReport1() and pass the details for database 2.
I am not sure there is any sample for this however you can have a look to samples [here|https://www.sdn.sap.com/irj/boc/samples]
Regards,
Shweta

How can I connect to more than one computer from external ip

Hi
I have been using remote desktop for some time and have a port forward set so I can connect to our mail server from anywhere else externally from my macbook pro, but how can I connect to other macs in the office when there only seems to be the two ports available for use 5900 and 3283. I can only port forward to one computer? How can I connect to multiple computers when not within the same network? are there other ports available?
Cheers
Tony

If your workstations get their addresses from an NAT device rather than being "real", the ports also need to be forwarded in the router to the workstation's internal IP address. ARD uses port 3283 for the reporting and updating function, so if your Macs are getting their IP addresses through NAT, since you can only forward a port to a single workstation, you can only get reports, push package/files to etc. for a single workstation.
ARD uses the VNC protocol for observation and control, though, and there are a range of IP addresses for that protocol, starting with 5900. ARD uses 5900 by default, so that port would be forwarded to the first workstation. You would, I believe, need to install third-party VNC software on the systems (since the ARD client cannot listen on any port other than 5900 while other VNC systems can be set for other ports such as 5901, 5902, etc. You would then forward 5901 to the second workstation (and on to 5902, 5903, etc.). You can then use the following information:
http://docs.info.apple.com/article.html?path=RemoteDesktop/3.0/en/ARDC715.html to connect.
The only other options are: 1) to run the ARD administrator on a workstation on the network, and then take control of that system from outside, either via VNC or another copy of ARD, or 2) set up a virtual private network (VPN) so that when you connect from outside, your admin system is officially part of the local network.
Hope this helps.

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...

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.

Hello! I have in my home 2 iMac, 2 iPad, 2 iPhone, and 1 air base extreme. I don't succeed to connect more than one divice from similar type. I tried everything what I knew. I build another network, etc...

Hello! I have in my home 2 iMac, 2 iPad, 2 iPhone, and 1 air base extreme. I don't succeed to connect more than one divice from similar type. I tried everything what I knew. I build another network, etc...
So only one imac, only one ipad..and so on simultain.
More over, all the divices are conect through wifi to air base but are not receiveing internet as i told above.
I need to disconnect one device to have internet on the second one from the same type!
Could somebody help me?
Many Thnaks,
dan

If your network configuration is:
Cable modem > (Ethernet cable) > [WAN] AEBS > (wireless) > Macs, then
AirPort Extreme Base Station Setup (AEBS) w/High-Speed Cable Modem
Modem/Router Power ReCycling
- Power-off the Cable modem, AEBS, & computer(s). (If possible, leave the modem off overnight.)
- Power-on the Cable modem; Wait at least 30 minutes.
- Power-on the AEBS; Wait at least 5 minutes.
- Power-on the computer(s)
Perform a "hard" reset of the AEBS.
- (ref: http://docs.info.apple.com/article.html?artnum=107451)
Setup the AEBS
With the network components powered down, set up the AEBS, using the AirPort Admin Utility, connect your computer directly (using an Ethernet cable) to the LAN port of the AEBS, and then, try these settings:
AirPort tab
- Base Station Name: <whatever you wish or use the default>
- AirPort Network Name: <whatever you wish or use the default>
- Create a closed network (unchecked)
- Wireless Security: Not enabled
- Channel: Automatic
- Mode: 802.11b/g Compatible
Internet tab
- Connect Using: Ethernet
- Configure: Using DHCP
- WAN Ethernet Port: Automatic
Network tab
- Distribute IP addresses (checked)
- Share a single IP address (using DHCP & NAT) (enabled)
Once you verified that you can get Internet access for all of your computers, you should secure your wireless network. To do so, I suggest that you make these changes:
AirPort tab (optional)
- Create a closed network (checked)
Change Wireless Security
- Wireless Security: WPA Personal
Base Station Options - WAN Ethernet Port
- Enable SNMP Access (unchecked)
- Enable Remote Configuration (unchecked)
- Enable Remote Printer Access (unchecked)
Wireless Options
- Transmitter Power: 10%
Access Control tab (optional)
- + <add the computer(s) that will access this wireless network>

Switched from DSL to cable modem. My Airport light won't turn green. Keeps blinking orange. No wireless now and can't connect to more than one computer! ?????

Switched from DSL to cable modem. My Airport light won't turn green. Keeps blinking orange. No wireless now and can't connect to more than one computer! ?????

Hmmmm.
If you reset the AirPort Extreme by holding in the reset button for 9-10 seconds and then releasing, the AirPort should be back in default settings which would allow mutliple computers to connect to the LAN ports on the AirPort.
Power off the cable modem for now and leave it off at least 15 minutes.
With the AirPort Extreme still powered on, hold in the rest button on the back for 9-10 seconds and release. Allow a full minute for the AirPort Extreme to restart to a slow, blinking abmer light.
Then, power off the AirPort Extreme.
Check to make sure that the Ethernet cable from the modem is connected to the WAN "O" port on the AirPort Extreme.
After the modem has been powered off for at least 15 minutes, power it up and let it run for 5 minutes by itself.
Now, power up the AirPort Exteme and let it run for 2-3 minutes
Open Macintosh HD > Applications > Utilities > AirPort Utility
Connect an Ethernet cable from your Mac to one of the LAN <-> ports on the AirPort Express
Click on the AirPort Exteme, then click Continue to follow the guided setup tp configure the AirPort Extreme. You can use the same wireless network name, password, etc that you used before, or set up a new name and password, etc.

Crystal Report - More than one table from MySql

Hello, I am in need of help big time.
I have am using Visual Studio 2010 and Crystal Report 10.
The problem that I am incounting is that I am unable to retreive data from more than one table from a MySql database. I have been stuck on this for too long and need to hjump the hurdle.
I am using a MySql connection string, a dataset and a crystal report which is based on the dataset.
The main error that I am having is, the browser opens and a form appears saying "The report you requetsed requires further information" With the Server name: DataSetPropertiesDetials, while the User name and Password fields are then enabled.
I am guessing I am missing something in my code.
When I retreive data from one table the report is fine, but when I try to use more than one table it throws the error.
My Code is below and also attached:
Imports System.Data.SqlClient
Imports System.Configuration
Imports MySql.Data.MySqlClient
Imports CrystalDecisions.ReportSource
Imports CrystalDecisions.Web
Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared
Public Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim con As MySqlConnection
Dim rpt As New CrystalReport3()
Dim myReport As New ReportDocument
Dim myData As New DataSet
Dim cmd As New MySqlCommand
Dim cmdUser, cmdProperty, cmdBranch As New MySqlCommand
Dim daBranch, daProperty, daUser As New MySqlDataAdapter
con = New MySqlConnection()
'Connection String
con.ConnectionString = "Server=****;Database=***;UID=***;Password=****"
Try
con.Open()
cmdBranch.CommandText = "SELECT branch FROM tblbranch"
cmdBranch.Connection = con
daBranch.SelectCommand = cmdBranch
daBranch.Fill(myData)
cmdProperty.CommandText = "SELECT ref, keys_held, key_no, keys_out, no_name, address_line1, address_line2,key_label FROM tblproperty"
cmdProperty.Connection = con
daProperty.SelectCommand = cmdProperty
daProperty.Fill(myData)
cmdUser.CommandText = "SELECT known_name FROM tbluser"
cmdUser.Connection = con
daUser.SelectCommand = cmdUser
daUser.Fill(myData)
myReport.Load("REPORT LOCATION")
myReport.SetDataSource(myData)
myReport.Database.Tables(0).SetDataSource(myData.Tables(0))
CrystalReportViewer1.ReportSource = myReport '
Catch myerror As MySqlException
MsgBox(myerror.Message)
End Try
End Sub
End Class

Hi,
You have 3 SQL commands but you are calling SetDataSource only once. You need to look through for each of the SQL Commands.
Good luck,
Brian

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 to delete more than one workbook from command line

Hi, I'd like to delete more than one workbook from command line:
The following syntax, it doesn't work....but I followed the manual instructions:
dis51adm.exe /connect eul/eul@uatdb /delete /workbook "ALE_TEST_1, ALE_TEST_2" /eul eul /log D:\Ale\delete.log
where:
eul/eul@uatdb: is the db’s schema/user where the EUL is installed;
/delete "ALE_TEST_1, ALE_TEST_2": is the command to delete the workbooks, specified inside the “” (with the relative path)
/log D:\Ale\delete.log: is the command to write a log’s file named “delete.log” to track the action
The log file says:
22/4/2008 4:00:26 μμ
dis51adm.exe /connect /delete /workbook ALE_TEST_1, ALE_TEST_2 /eul eul /log D:\Ale\delete.log
Document ALE_TEST_1, ALE_TEST_2 not found in EUL.
Internal EUL Error: ObjectNotFound - Can't find EUL element
There are 0 eul elements to be deleted.
Completed deleting eul elements.
22/4/2008 4:00:29 μμ
Anyone can tell me how is the right syntax ?
Thanks in advance
Alex

Hi Rod
I was coming to that conclusion myself but wanted to wait until the other avenues had been exhausted first - aka making sure of the workbook names.
I checked through all of the command line documentation and read nothing which clearly indicated that only one workbook could be processed at a time, other than the fact that the syntax says workbook and not workbooks, which could be a big clue.
I think you are right though in that it has to be one at a time, which would be a pain.
Best wishes
Michael

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.

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

Simultaneous connection of more than one unit of GPIB device

Dear all out there,
Would anyone has any idea/ solution in programming of ATE that makes Simultaneous connection of more than one unit?
What's the better, if not the best, way of initialisation, acquisition and report generation for such system? without significant delay incurred.
For instants,
1. Initialise X number of, say, Agilent 34401A multimeter (GPIB)
2. Acquiring of meter readings from each meter, limit check and write to respective report
Any idea/ sample code/ solution is very much appreciated.
Regards
ian.f k
Ian F
Since LabVIEW 5.1... 7.1.1... 2009, 2010
依恩与LabVIEW
LVVILIB.blogspot.com

albert geven wrote in message news:<[email protected]>...
> The connection of multiple multimeters to the gpib bus is normal, the
> only thing you need to do is switch them each to a unique address on
> this bus.
> Your program can best initialise all multimeters once in the beginning
> of your program and read out those meters when appropriate.
With many instruments there are two types of "initialise."
One type, which is a reset, choose range, etc., as you suggest can
be done at the beginning of a program or section of a program.
However, the other type of initialize is to sent the SCPI INIT command
to the instrument. This command tells the instrument to take a measurement
(or scan of measurements).
When dealing with multiple multimeters, there are at least 2 ways of
handling measurements. The slow way deals with one instrument at a
time -- using the SCPI commands INIT, wait FETCH?, or perhaps just READ?
sent to each instrument. It is slow because each instrument must wait
for the previous instrument to finish before it can start.
The better way is to set up each instrument for the desired measurement.
If simultaneous triggering is needed, either use some type of external
trigger or BUS trigger if the instrument can use it. After all instruments
are set up, issue the INIT command to each instrument, then trigger.
when all measurements are completed, use the FETC? command to get the
results from each instrument. Note that there may be Plug&Play drivers
to issue these commands for your instrument.
[email protected]
www.CompleteTest.com

Connect to more than one Database from portal

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