I'm trying to connect to my on-premise Oracle database in order to migrate and copy some tables over to Azure SQL, but am not able to do so despite making sure all the connection parameters match the provided values in tnsnames.
Am I missing something? The error says the socket is closed but haven't gotten any useful information other than this prior issue, but doesn't contain any solution. I currently use Oracle 11.2.0.3 so the ADF connector should support this version.
Not sure what else I need to check. Any thoughts would be greatly appreciated!
Your screenprint shows you are using the AutoResolveIntegrationRuntime but as you say your Oracle db is on-premises you would need a Self-hosted Integration runtime (SHIR) as per this article. You would still need an SHIR for an IaaS Oracle db. Ideally the SHIR should be 'close' to the datasource so probably on-premises in the same network.
Do you have any proxy or firewall configured?
Have you tried creating the linked service and then testing the connection? Sometimes it occurred to me that I failed to test the connection of a new linked service but when creating it and retesting the connection is successful ...
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On my Infa server PC, in Informatica Administration I created a repository service giving Oracle Database information. Once in Informatica I connect to this repository and there I want to create a mapping importing a table from a remote sql server pc (on my home network domain) and then create a workflow to put the data into an oracle target table.
Using ODBC admin console I created and tested the connection and I am also able to telnet the linked sql server and port.
Within informatica I created a relational connection for sql server and when I run the workflow I get the error reason (14007) failed to create and inituiate OLE DB instance and datatabase driven error, failed to connect to database using user I use in SSMS for windows authentication and connection string(). I would like to know, first of of all, if I am doing something wrong, willing to connect me to a repository with oracle database information and then use a sql server table on remote pc. Do I have to create another repository for Sql server and there use sql server tables or I can mix them? secondly I would like to know how to create a relational connection object in informatica for my linked sql server so that it will be the same of relatonal connection created with ODBC admin consolle. Last but not least I would like to understand why gives an error out saying I left connection string empty, when I cannot see a place where I can put it by creating the relational connection object
I might not be able to solve the problem completely, but here's few remarks that might be helpful:
PowerCenter Repository database is where PowerCenter will store all the metadata about the processes you create. It may be Oracle - that's perfectly fine. And as it is not releated to your data sources or targets, you do not need to create another one for different sources/targets. One is enough for all ot them.
Using PowerCenter Workflow Manager create the appropriate connections to all the systems you need. Here you create the connections that indicate ODBC/other connections that will be used by Integration Service to actually connect to your data sources and targets, hence
Make sure the ODBC / other data sources are specified on Intergration Service. It is the IS that will run the process, connect to systems specified in the process with the defined connections.
When you build the mappings, you create them in a client app (Mapping Designer) and you can connect to DB engines to create source and target definitions. Mark, that in such case you use the connection (eg. ODBC data source) defined on the client. Once you will try to actually run the workflow with the given mapping, it is executed on IS (mentioned above) where appropriate connections need to be defined - and that's completely separate.
When editing a session in a workflow, for each source and target you need to pick a connection defined in Informatica Repository, created as described in point 2 above (or use a variable to indicate one - but that's another story)
So the error you mention seems to be related to connection created in Workflow Manager - it probably does not specify the connection string that should refer the data source defined on IS.
currently, we are using oracle 8i and we are working to decommisson it.
I need to find out which all other databases are connecting to our database using db link.
Please note, I am not looking for the connection from our database to others database. I already got that information using all_Db_links.
If you audit connections to the database or look at the listener log, that will tell you the machines that are connecting to the database and the application that is connecting (that information is coming from the client so it could be spoofed but I'm assuming no one is actively trying to hide information from you). That should allow you to determine which connections are coming via database links. That may not tell you which database on the particular server is connecting if there are multiple databases on the same server using the same Oracle Home. But it should narrow it down to a relatively small number of databases that you can manually check.
when i tried accessing one of my APEX applications I developed on oracle cloud.
I get this error
The database service named: |ocid1.tenancy.oc1..aaaaaaaacwex5sqkhi7kwsb5s664n6brmhrjvhhsxduw35l2rzahhsa7pyaa-tmohammedb|re| does not exist
And When I logged into my Oracle Cloud account, to my dismay, My oracle ATP database is not more available. I didn't get notification either from Oracle support.
Under My resources the database is listed as stopped.
But when i Click on it it shows "Error retrieving values"
Can anyone help me with recovering the database.
Regards
Looking into this, I came across a thread you created via Cloud Customer Connect where your question was answered. I'd recommend reviewing and following up there - https://cloudcustomerconnect.oracle.com/posts/44c1ada213
TLDR - your database environment is up and running .. but it will go away for sure since you are not using the free tier database. You should get your data out of that system, it will go away. Please give this the appropriate priority
We are using Oracle cloud CRM. Our organization has been using it since quite few years and the people who set it up have already left. I am new here and am trying to connect the CRM data to Power BI. I intalled the ODAC drivers and everything. However, I do not know what to enter in my tnsnames.ora file. That file has asked for service name, server name and hostID/name. No one in the organization has this information. I reached out to Oracle support and here is the response they gave:
Oracle’s response to the service request: “These details are not found in Documentation because they cannot be provided. You'll need to reach out to Power BI support to see if there are alternate ways to create this integration without these details.”
Does anyone know why Oracle would not share these details with us? If there is any other way to find out the server and service name? How should I proceed in such scenarios.
As of now, we use a link to login to the service and we do not have much documentation
Let me attempt to translate.
We are using Oracle cloud CRM
Oracle is hosting our application.
I am new here and am trying to connect the CRM data to Power BI
We want to query the database being used to store our application data.
Oracle’s response to the service request: “These details are not found in Documentation because they cannot be provided..."
This is where it gets fun, they are saying - we do not give clients direct access to the database where their data is hosted. So in other words, you CANNOT connect your tool directly to the database.
So, I think you're best bet, is to look into REST APIs that have been published for you as a subscriber to the service. This is often provided in lieu of providing direct access to your hosted environment.
Your other bet is to contact someone in your organisation that has the oracle connections in a file which you could load SQL Developer by Oracle, and explore the connections there. Most likely this will be a data engineer or IT contact in your organisation who will have this information. Once you have the connection info visible, you can then enter this directly in Power BI after creating an Oracle connection.
I'm trying use Microsoft SSMA for Oracle to migrate a database onto Azure SQL, but I can't get it going. I've double checked the server name, server port, Oracle SID, password... everything. No matter the type of entry screen I use, I can't get it to connect to the on-premise Oracle instance.
I'm pretty sure the login information is all correct, and I should have a working connector to Oracle since I connect to it from TOAD on a daily basis. I tried installing Oracle libraries per previous posts but not sure if I did it successfully because the issues still remains.
What are the troubleshooting steps I should take in order to make this work?
Log in screen:
Error 1:
Unable to find specified provider.
Compatible Oracle Data Access Connectivity libraries were not found on the machine. You can install them from Oracle product media or download it from Oracle web site.
Error 2:
Connection to Oracle failed.
ORA-01017: invalid username/password; logon denied
Error 3:
Connection to Oracle failed.
Network Naming: No LDAP server detected or configured
After a few more days of debugging, I was finally able to get SSMA to work. This answer helps to document my solution for personal use, as well as hopefully answer anyone else's question in the future.
After looking at the list of prerequisites to have SSMA running, I saw that I needed to have a correct Oracle client running. After some internal discussion, it was likely that the Oracle client SSMA needed was different than the one my computer already had for TOAD. The .Net provider for the TOAD connectors was probably not useful for SSMA.
We run Oracle 11g but I had to install Oracle 12c because 11g did not support Windows 10 apparently. Not too much of a roadblock here.
I found this guide to install Oracle client 12c pretty helpful. Shoutout to my alma mater.
Unfortunately the installer kept freezer, but using this former post, I was able to bypass it with the windows command:
setup.exe -ignoreprereq -J"-Doracle.install.client.validate.clientSupportedOSCheck=false"
After that, I saw different error messages when trying to connect SSMA. I kept trying different options with my logins until it worked. Provider: OLEDB Provider, Mode: Standard.
After being granted the appropriate permissions, I was finally able to access our internal tables and objects.
It was a pretty annoying question with a lot of rabbit holes along the way, but it was definitely worth it, being able to translate all our Oracle schemas to Azure SQL with a few clicks. Hope this helps!
Make sure to validate all steps mentioned below before going to install Microsoft SQL Server Migration Assistant for Oracle.
Make sure you have already installed SQL Server instance that will host the migrated database. Also keep in mind that you are not installing SQL Server Express edition to host the migrated database.
You must have sysadmin account to install SQL Server Migration Assistant for Oracle.
Make sure to install SSMA for Oracle on the server that will host newly migrated database on SQL Server.
It is recommended to install Oracle client software on your target system where SQL Server Instance is running.
Make sure your windows server has Microsoft Windows Installer 3.1 or a later version. Port 1434 should be open.
For more details, You can reference: How to Install SSMA for Oracle to Migrate Oracle Database to SQL Server.
Here's the Azure Database Migration Guide: Migrate Oracle to Azure SQL Database. As you prepare for migrating to the cloud, verify that your source environment is supported and that you have addressed any prerequisites. This will help to ensure an efficient and successful migration.
Connect to Oracle with Oracle Client Provider.
Azure also has other way can help you migrate Oracle database to Azure SQL database, such as with Azure Data Factory. If you still has the connect error. I think you can try to use it. Please reference this tutorial: Copy data from and to Oracle by using Azure Data Factory.
Hope this helps.