Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

July 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more

Reply
cslarun
Frequent Visitor

ODBC Connection Issue

Hi, I am new to Power BI and I am trying to connect to a Oracle database which has a very huge data in it. I am using ODBC option to connect. I have created a DSN and using the same in ODBC. Once I select the DSN and select OK, I receive an error message saying - "Array Dimensions Exceeded Supported Range". Please help me. Thanks.

3 REPLIES 3
Anonymous
Not applicable

@cslarun,

Why not directly use the built-in Oracle connector and DirectQuery mode in Power BI Desktop to connect to your database?

Regards,
Lydia

Hi Lydia,

 

Thanks for replying. I also downloaded the below mentioned Oracle db access client using the below link and tried connecting to the oracle database.

But I receive the following mentioned error -"Details: "Oracle: ORA-12170: TNS:Connect timeout occurred". 

 

Please help me in direct query. How do we query directly and any sample query with join statements.

 

Thanks,

Arun

Anonymous
Not applicable

@cslarun,

When connecting to Oracle database, choose “DirectQuery” mode and enter a high value in the "Command timeout in minutes (optional)" textbox.
1.PNG

In addition, you can review the join samples in this article: https://www.techonthenet.com/oracle/joins.php .

Regards,

Helpful resources

Announcements
FabCon and SQLCon Barcelona 2026

FabCon & SQLCon – Barcelona 2026

Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.

60 days of Data Days Carousel

Data Days 2026

Join Fabric Data Days 2026: 60 days of free live/on-demand sessions, challenges, study groups, and certification opportunities.

Power BI DataViz World Championships carousel

Power BI DataViz World Championships - June 2026

A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.