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

Data Days is here! Join us now for 60+ days of learning, challenges, and connection. Learn more

Reply
Anonymous
Not applicable

Problem connecting with Oracle Database

Hello!

 

I can connect to Oracle database with Oracle SQL Developer but, when i try to connect with Power BI, whit same TNSNAMES.ora configuration i get this error:

ORA-12638: Credential retrieval failed.

 

I try to connect whit this tnsnames:

Prod =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = X.X.X.X)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SID = XXXX)
)
)

 

¿Can you help me?

1 ACCEPTED SOLUTION
TeigeGao
Solution Sage
Solution Sage

Hi @Anonymous ,

Please try to change the entry to "SQLNET.AUTHENTICATION_SERVICES= (NONE)"

Best Regards,

Teige

View solution in original post

6 REPLIES 6
TeigeGao
Solution Sage
Solution Sage

Hi @Anonymous ,

Please try to change the entry to "SQLNET.AUTHENTICATION_SERVICES= (NONE)"

Best Regards,

Teige

Hi, where to change this "SQLNET.AUTHENTICATION_SERVICES= (NONE)"?

I am having the same issue.  

I made the change to SQLNET.AUTHENTICATION_SERVICES= (NONE) but this didn't help.

 

Any other ideas?

 

Anonymous
Not applicable

Yes! I try it last night and fine!!!! 

 

THX!!!!

TeigeGao
Solution Sage
Solution Sage

Hi @Anonymous ,

Could you please tell us which connector and driver did you use to connect to Oracle?

Best Regards,

Teige

Anonymous
Not applicable

Thx for your interest, @TeigeGao 

 

I use the last version of ODAC, 12c (12.2.0.1).

I try with 32 and 64 bits versions.

Helpful resources

Announcements
Fabric Data Days is here Carousel

Fabric Data Days 2026

Don't miss out on Data Days, June 15 through August 7. Learn Fabric, Power BI, SQL, AI and more.

May Power BI Update Carousel

Power BI Monthly Update - May 2026

Check out the May 2026 Power BI update to learn about new features.

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.