I'm trying to read Oracle Database data on Azure Databricks platform.
Can someone share the step to step process on how I can connect Oracle data to Databricks? I've probably searched the whole internet and read documentation but I can't find a solution that actually works. Not sure if it's because I have the incorrect driver or what.
Here's my process:
Uploaded the ojdbc8.jar file on the cluster libraries (the instant client 19
Tried to connect the data on databricks notebook and it didn't work
Can anyone share their process?
Which jar to upload in the library and where can I find this file?
How to connect? Sample code?
Any better way to do this?
To install library use
pip install cx_Oracle
Then use below code snippet to read in data from an Oracle database
CREATE TABLE oracle_table
USING org.apache.spark.sql.jdbc
OPTIONS (
dbtable 'table_name',
driver 'oracle.jdbc.driver.OracleDriver',
user 'username',
password 'pasword',
url 'jdbc:oracle:thin://#<hostname>:1521/<db>')
To read data from oracle database in pyspark you can follow this article - Reading Data From Oracle Database With Apache Spark
Refer for more information - Oracle | Databricks
Related
I've been researching and looking for ideas but the only thing close to a solution i've found has been where someone used pyspark to convert an oracle table into hdfs and then from hdfs into cassandra but I was hoping there was another/a clear solution to this data migration.
Title suggests that it is Cassandra > Oracle. Message text says Oracle > HDFS > Cassandra (i.e. the opposite direction). What exactly are you trying to do?
Suppose it is the title that is correct. If there's no tool which would do the migration for you, from my - developer's - point of view, creating a database link in my Oracle schema which points to Cassandra might be a good option. Then I'd just write some SQL code to migrate data I need. Here's how: Access Cassandra Data as a Remote Oracle Database.
Shortly:
connect to Cassandra as an ODBC data source
set connection properties for compatibility with Oracle
configure the ODBC gateway, Oracle Net and Oracle database
write queries
I want to explore Oracle data integrator , i am not able to understand what does 'Use credential File' option in Data server does in Oracle data integrator. If anyone can explain it would be helpful and i want to improve performance of my oracle data integrator script as well, any ideas on that as well.
Ok, now I think that I understood. You run ODI in Cloud.
You will need a credential File in order to connect to your database.
The way you obtain that credential file, is:
Credential files are downloaded from the ADW console to the ODI host in the Oracle Cloud Infrastructure (OCI).
Note: When ODI is deployed from the Marketplace, client credential folders are downloaded from autonomous databases that exist in the OCI compartment containing ODI.
If ADW is in a different compartment than ODI follow the steps below.
Download the Credentials
Connect to the ODI host using VNC. Refer to the Deployment blog above
for details.
Launch Firefox from the Applications>Favorites list.
Follow the steps in Downloading Autonomous Data Warehouse Credentials
to obtain the client credentials compressed folder containing the
wallet and network configuration files used by ODI to make the
connections.
The entire way of connecting is described here.
I have a oracle dataadapter that is a datasource on jasperserver.
But when I create a report using this adapter, it does not preview or fill the report on Jaspersoft Studio and JasperReports Server. Is there anyway I can create a new oracle dataadapter for testing purposes. I have downloaded odjc7.jar. But when I create a driver path to this file. I recieve a error Reason:java.sql.SQLRecoverableException: IO Error: Unknown host specified
Any details to whether oracle datasource can fill reports would be much appreciated and any details to creating a new oracle dataadapter.
If your link is correct and already works on other pcs/servers, then the error is in the connection to the database.
Check your connection to the database. Open a SQL-Developer tool and try to connect to the database.
Check if you really did add the driver to the data adapter:
It should look like this:
If you didn't provide the right driver it will not work!
Recheck your ojdbc7.jar. Maybe download it again from an official source. Also sometimes the ojdbc7.jar leads to some unknown errors. At a Jaspersoft Roadshow they recommended to still use the ojdbc6.jar.
how to connect to external oracle databases on a SAP system on windows platform?
I have SAP installed on my machine and i want to connect an external oracle database.
What I think is it is must to install a oracle client to do this.
I have related SAR file..also i have extracted in using SAPCAR -xvf K*.sar and got this
but now I don't know what to de next?
Can anyone please elaborate the steps?
You create a new connection in transaction DBCON. Test the connection using SA38 > ADBC_TEST_CONNECTION.
Read SAP Note 339092 for details.
I have installed SAS Enterprise Guide 9.3 and SAS JDBC Drivers 9.3 and have some test SAS data sets that I need to load into Oracle. We have licenses for
ODBC SAS/ACCESS ODBC
PCFILE SAS/ACCESS PC File Formats
CONNECT SAS/CONNECT
WKSPSRVLOCAL SAS Workspace Server for Local Access
I am using Windows 7. I am not sure about next steps
Can I read SAS Datasets having just installed SAS EG?
Which JAR files are required
How will the connect string look like and what will be the port, username & password.
Appreciate any help I can get.
Thanks
Not an expert in this. If you can do this, you will need to connect through the local Workspace server. I've only connected through a server Workspace server to get a JDBC connection.
How I've done it in the past. Always possible this is not the best method.
Step 1. Connect to SAS workspace. http://support.sas.com/documentation/cdl/en/itechjcdg/61499/HTML/default/viewer.htm#connfact_direct.htm
Step 2. Use the DataService on the Workspace to get a JDBC connection to the current SAS session. http://support.sas.com/documentation/cdl/en/itechjcdg/61499/HTML/default/viewer.htm#jdbcconn.htm
Alternative: Connect through ODBC to Oracle in SAS and use SAS to write the tables into your Oracle DB. See the SAS/ACCESS documentation. http://support.sas.com/documentation/onlinedoc/access/index.html
Hope this helps!