We are trying to connect cube olap engine to databricks sql using jdbc driver (https://github.com/cube-js/cube.js/tree/master/packages/cubejs-databricks-jdbc-driver). We want to use Cube as olap layer for fast query and pre-aggregations.
However, it seems the jdbc connectoris not working. Has anyone seen this issue or tried connecting cube to databricks sql
Not sure if it's possible right now but Databricks driver is planned to be delivered in Q4 this year.
Related
Cam memgraph connect to any of the standard visualization products such as PowerBI , Tableau. N4j seems to have recently launch a enterprise version of PowerBI connector.
As of now, Memgraph does not have an ODBC connection to connect to such sources. However, it is in the works to make visualization products as one of the destinations for Memgraph analytics.
The thing is that PowerBI can connect to a streaming dataset and accept incoming data while making ad-hoc dynamic visualizations. This is not the same though as making queries to static data to the database and visualizing it as capabilities of streaming dataset is a bit low on the PowerBI side.
Haven't yet checked Tableau, so no info on that side.
For concrete use cases and technical help, try checking their Discord page at https://discord.com/invite/memgraph
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
Usually we can get data using ODBC connector in Power BI. Is there any way to get the data using the JDBC connector?
Unfortunately there is no native support for JDBC.
You can upvote the feature request for JDBC at this link
There are options that convert your JDBC connection in to an ODBC one, known as JDBC to ODBC bridges. Oracle has one and here is a Progress option. Once configured you can then use the PowerBI ODBC connector.
Since Power BI is not coded in java its not easy to support JDBC (you will see only ODBC or .net based connectors in PBI). If Microsoft ever wants to add support for JAVA in Power BI then they might have to do via some sort of bridge.
If you are open for 3rd party solution then here is one option by ZappySys
This same problem happens in many non java apps like Excel, MS Access, Informatica PowerCenter they all are not coded in JAVA so cant support loading java libs / runtime.
does anyone have a working example of Mondrian connected to Kylin?
I would like also to know if there are tools which are able to build the XML OLAP cube description in an automatic fashion.
As I know, there is no such tool yet. There is a blog about Saiku with Mondrian connect to Kylin. http://kylin.apache.org/blog/2019/05/23/saiku-kylin-molap/
In Talend 5x, I was able to use the Generic ODBC connection to connect to an ODBC source (QuickBooks QODBC). I was able to read and extract data fine from QuickBooks.
I see that Talend 6 doesn't have that ability to connect to Generic ODBC any longer. Can someone suggest an example, workaround or alternative to be able to connect to a Windows ODBC source? I see the JDBC connection - is there an example somewhere I can see if it will do the same thing?
Thanks in advance,
HL
odbc support was removed in Talend 6.0
Presumably, you could rollback to Talend 5.x and Java 1.7. Or, look in the Talend Exchange 3rd-party components for an odbc component.
https://www.talendforge.org/forum/viewtopic.php?id=46670
In Talend 6x you can use tJDBCConnection and the other components that start with tJDBC to make a connection with ODBC. It's a built in Java driver for ODBC.