I'm using Power BI (on the web) and I'll like to make a report showing the last hour only for a near-real time report. I can make a filter but the date/time is fixed and I want to show only the values of the last hour. Is that posible?
If you have a Stream Analytics query reading from Event Hubs and writing to Power BI you can use Q&A inside Power BI to filter to "in the last hour" as described here:
https://stackoverflow.com/a/32227774/5070440
Then after you are happy with your Q&A tile you can pin it.
You may need to set up periodic refresh of your data source as GregGalloway pointed out - however likely more frequently than once an hour if you need stats from the current past hour,
Would it be an option to edit the data import query?
Would it be an option to create the report using power BI desktop, applying filter in the "edit query" view, and then publishing it?
You can also use a tile level filter on the data you want to display on PBi to select values starting a given time. However this will only work on Reports not Dashboards in PBi.
Hope this helps!
Related
I'm really confused about how i can refresh data that i use in my powerBi.
The data come from a server in SQL, at first time i choosed to use DirectQuery as importation mode, after a litle bit of time i observed that its took time when i want to change things like measure or representations.
So i opted to change directquery to importation in order to gain time.
I would like to know how can i get the newest data from my sql server automaticly, because i have line which is added every day, would i use accrementiel refresh?
Just set up a daily refresh schedule in the Power BI Service. If you have big data with a long history you might also benefit from incremental refresh, but that's alread an optimization step.
Are you aware of power bi gate way ?
Keep your dashboards and reports up to date by connecting to your on-premises data sources without the need to move the data. (https://powerbi.microsoft.com/en-us/gateway/)
You just need to install power bi gateway to your server.
Then you can visit power bi service -> settings -> manage gateway . You can setup new gateway here.
Once you create connection you can schedule refresh time with your UTC time.
Note: you need to buy power bi pro or premium licence for that. Pro licence has 8 times refreshes per day and premium has about 48 times per day(premium is very expensive) .
And their is feature called incremental refresh, you have to setup it prom power bi dashboard.
It may take 10-20 minutes to refresh data set.(mentioned in power bi site)
Hi do you using Power BI desktop?
click on your page not visual, on the visualization you will see,option called page refresh. set this On.
set Refresh type to Auto page refresh.
set Refresh this page every the value you want(seconds,minutes,hours,day).
this picture
When going through DAX overview documentation on the following https://learn.microsoft.com/en-us/dax/dax-overview,
under the Calculated Column heading, I couldn't understand the highlighted information in the following statement:
"(calculated) Column values are only recalculated if the table or any related table is processed (refresh) or the model is unloaded from memory and then reloaded, like when closing and reopening a Power BI Desktop file."
Does it mean, that whenever we close the Power BI Desktop file, the model is unloaded from memory? does the memory is used like Cache?
Would anyone please help me understand what actually happens in practical world? Thank you for giving your valuable time and support!
The main point of this remark is to distinguish the difference between measures and calculated columns since the distinction is often not clear to report builders.
A measure is dynamically calculated on-demand when the end-user interacts with the report via slicers or any other sort of filtering and interaction.
A calculated column is only calculated when the model is refreshed. As a result, calculated columns cannot be dynamically responsive to the end-user since they have already been computed before the user can interact with the report.
Power BI Desktop is excel on steraloids. It is an application and as with every application when you close it, it unloads from memory. Its great and you can do a lot..
It has the option to refresh (a button) when you press it, it recalculates your calculated columns.
If you want dashboards and reports served, to be shown in other (web) applications. You want to go with Power BI server. It runs in the cloud and you can refresh the data (daily, on the hour or direct) you can set this all up scheduled in the admin tools.
It is logical that only on a refresh, your calculated columns get recalculated. Only in this moment of time your raw data is changing what will have effect on your calculated columns.
I have been requested to add another column in a dataflow in Power BI and have done so and refreshed the dataset which uses the dataflow. The field is not appearing in the list of fields in Power BI for some reason. I have tried downloading the dataset on my desktop and cleared the cache and did not work. I opened Power Query (Transform data) and the column exists. I've tried to refresh preview and Close and Load but still not showing. I have 3 columns in that table in Power Query but only 2 are shown in the list of Fileds in Power BI.
Please can you help?
Power BI Filed List
Power Query
I was able to sort this out by right clicking the table and selecting Refresh data
check whether the data source path is correct or not in PBI desktop [path is from your local machine or not]
P.S: If this answer helps, please take a moment to check the tick mark and upvote this answer.
Why Power BI service does not refresh data automatically. The forums mention that with Power BI Pro license allows to schedule refresh 8 times and Power BI Premium allows us to schedule refresh with a higher frequency. There is always an option to manually refresh the dataset/dashboard.
Does that mean Power BI does not provide the ability for live reporting.
We are not sure when was the last update for the dashboard.
Please suggest if we have some workaround. Iam using web api as data source.
Real-time reports are possible with push or streaming datasets.
DirectQuery is another possibility for frequently changing data.
What's your connection ? DirectQuery or import in your current report ?
Schedule refresh for your dashboard does not mean your data will refresh, you have to refresh your dataset also, and depending your source if you are using dataflows it will refresh your last dataset update. I'll suggest you to check out guy in the cube channel on youtube.
I am new to the powerbi platform and have a challenge of scoping/converting an old dashboard solution to powerbi.
The old dashboard solution is custom made and refreshes data every minute.
Powerbi lists its refresh rate for 8 times a day for Pro and 48times a day on Enterprice. Does that means there is no option to provide the same realtime (1min) updates in a dashboard using powerbi?
Can you embed iframes or anything in a powerbi dashboard?
How can you do a realtime graph in powerbi if it only refreshes 8 times a day?
Refreshing data 8/48 times a day is applicable when you import data in Power BI dataset. But if you want "more recent" data, you can connect to your data source using DirectQuery mode. DirectQuery sends queries to your data source when rendering the report. If you apply a filter, the database will get a new query, and so on. Not every data source supports DirectQuery, e.g. you can't use it for flat files (obviously). You may want to take a look at Data refresh in Power BI article.
For embedding iframes in Power BI report you can use HTML Viewer custom visual.
By default when using DirectQuery mode, tiles pinned to a dashboard refresh automatically hourly (Datasets in DirectQuery/LiveConnect mode), but you can reduce this time down to 15 minutes:
A tile is a report visual pinned to a dashboard, and dashboard tile refreshes happen about every hour so that the tiles show recent results. You can change the schedule in the dataset settings, as in the screenshot below, or force a dashboard update manually by using the Refresh Now option.
However if you want to display real-time data in Power BI dashboard, it will be better to use push or streaming datasets. With push datasets you can programatically push data to the dataset and the data will be stored and you can use them in reports. Streaming datasets are similar to push, but they will keep only the last hour of data pushed to them and can't be used in report, only pinned to a dashboard. There are also other options, like using PubNub or Microsoft Flow. For more information also take a look at Real-time streaming in Power BI.