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Anonymous
Not applicable

how does 'Import data' work in power bi

hi,

 i have a question.  When we connect to a database and choose 'Import' option. Does the Import process effected by the underlying source database performance? because as of now when i refresh the dataset it takes me about 30 minutes to complete the refresh.  The table has about 40 milion rows. If i do select * in the source it take me about same time.  So, do i have to tune the source table, so the 'Import' or Refresh process gets faster?

3 REPLIES 3
v-piga-msft
Resident Rockstar
Resident Rockstar

Hi @Anonymous ,

Have you solved your problem?

If you have solved, please always accept the replies making sense as solution to your question so that people who may have the same question can get the solution directly.

If you still need help, please feel free to ask.

Best  Regards,

Cherry

 

Community Support Team _ Cherry Gao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Anonymous
Not applicable

@v-piga-msft  so the time taken to import data depends on volume of data....and is there any way can we improve the import data process.....like reduce the time taken for import?

v-piga-msft
Resident Rockstar
Resident Rockstar

Hi @Anonymous ,

If you use import mode when get data from database, I think it will not affect the underlying source database performance.

If your data source is very large, it do will take a long time for import and refresh, but it will reduce the time for query in power bi such as filter the data.

If you want to take less time for getting data, you could try direct query which should affect the nderlying source database performance, but it may take some when filter in power bi desktop if your data is very large.

Please refer to this document about the limitations for direct query before using it.

In addition, if you do not need all of the data in the databsed, you could write the SQL statement to get the data you need when get data which may reduce the loading time.

Best Regards,

Cherry

 

Community Support Team _ Cherry Gao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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