Forum Discussion
Why is loading/refreshing data in powerbi cloud or same problem also in desktop so slow ?
What I recommend to you in developing report is to use only tables and columns you need.
Your RAM spending = SUM of memory size of each field together
If you decrease number of columns using SQL then you will decrease it very much.
When you connect to your SQL Server/Azure SQL Database you can mention SQL script as shown below. It can be simple SELECT or something complicated as stored procedure which returns dataset
(In case of Analysis Services it can be written in MDX or DAX)
The best solution is this one.
http://community.powerbi.com/t5/Desktop/Combine-multiple-tables-into-one-table/m-p/60752#M24933
Now it works perfectly, everyrefresh/changing parameters in visualization takes 1-2 seconds.... I can consider this link as a solution for everybody who has problem with slow PBI with a lot of tables.
I have maybe 10 bookeepings joined in one table now, 10 tables of invoices joined in one table and so.... one added column in table to indentify company. And all those sources have in querries turn off "enable load" option (so total refresh is working but it is slowing down powerBI).
What I recommend to you in developing report is to use only tables and columns you need.
Your RAM spending = SUM of memory size of each field together
If you decrease number of columns using SQL then you will decrease it very much.
When you connect to your SQL Server/Azure SQL Database you can mention SQL script as shown below. It can be simple SELECT or something complicated as stored procedure which returns dataset
(In case of Analysis Services it can be written in MDX or DAX)
Thank for tips, I apppreciate it!
I will test everything...in next days.
My own idea from yesterday was divide pbix into two pbix. I have 5 sheets in one pbix (three sheets was about accouting and next two was about key paramaters for produce and costs). So now I have two pbix and each has just half of tables. Managment have to look into two reports now, instead of only one, but it is not a big problem. But the speed is now signifacantly better.
I will also test all advices mentioned above.
The best solution is this one.
http://community.powerbi.com/t5/Desktop/Combine-multiple-tables-into-one-table/m-p/60752#M24933
Now it works perfectly, everyrefresh/changing parameters in visualization takes 1-2 seconds.... I can consider this link as a solution for everybody who has problem with slow PBI with a lot of tables.
I have maybe 10 bookeepings joined in one table now, 10 tables of invoices joined in one table and so.... one added column in table to indentify company. And all those sources have in querries turn off "enable load" option (so total refresh is working but it is slowing down powerBI).