Millions rows issue

[BirhanAYDS]

Hello everyone, I have an table has 385 millions rows. Probably it would be greater. This table sit on Oracle database. Import is takes so long. What would you do? What is your suggest?

[v-eachen-msft]

Hi @BirhanAYDS ,

Your data is too large to use Import mode. You need to use DirectQuery instead. DirectQuery connects to the data directly and its speed is much faster than Import mode.

You can refer to the following documents.

https://docs.microsoft.com/en-us/power-bi/desktop-connect-oracle-database

https://docs.microsoft.com/en-us/power-bi/desktop-use-directquery

https://docs.microsoft.com/en-us/power-bi/desktop-directquery-data-sources

Best Regards,

Eads

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[BirhanAYDS]

Hi @v-eachen-msft

Thank you for reply. I tried direct query. This time the relationship problem came out. When i create new relationship between two tables, one of them this millions row table, power bi couldnt create the relationship. Do you have suggestion

[v-eachen-msft]

Hi @BirhanAYDS ,

Can you describe the specific error that occurred when creating a relationship (eg using a screenshot)?

Here is the document about relationship, you can refer to it.

https://docs.microsoft.com/en-us/power-bi/desktop-create-and-manage-relationships#wrong-active-relat...

Best Regards,

Eads

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.