I apologize if this is a 'starter' question but i have not been able to find any answers in tutorials.
This started when i accidentally let go of a entry in the fields pane in Power BI. The entries turned into a parent-child relationship ( please see image ), but i can't find any such relationship in query editor or relationship manager.
Power BI fields Pane
May i know what is this and how do i get rid of it?
You have inadvertently created a custom hierarchy.
Your original fields still exist, so you just need to delete the hierarchy. To do that, right-click the hierarchy top level and select "Delete" from the context menu.
Related
When I work in Power BI Desktop connected to SQL Analysis Services, my model looks like this,
Enter image description here
And the "Fields" tab on the right spans for more than a page long:
Enter image description here
In reality I actually use only a few tables and a few columns in those tables + my measures.
To simplify that look, I can go to ellipses near each tables title, and hide that particular table. I also can do this on "model" tab, but in my case, when I have a few dozens of tables, it is time consuming.
Is there a way how to "hide" all not used tables and columns, to help report consumers to comprehend the model and my calculations?
You can also easily hide multiple fields in Power BI Desktop. The best place to do that is to go into the Model tab. Then select all fields that you want to hide (using Ctrl or Shift with selection), and then in the Properties tab beside it, turn the Is Hidden property to On.
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Hi I am doing a graph with data from one table , I would like to use in the filter a hierarchy from another table but I don't know how to do it.
Anyway could help? I just begin in Power BI
It looks like you already have a relationship established between the two tables. If you just want to use the fields within the hierarchy as a filter, you can drag and drop the fields into the filter pane and use it there. If you want to use a slicer and the entire hierarchy, you would have to use the "Hierarchy Slicer" from the marketplace. If you haven't imported visuals from the marketplace before, you can do it by clicking on the three dots (...) at the end of the "Visualizations" pane and selecting "Import from marketplace". Then search for Hierarchy slicer and import it.
https://appsource.microsoft.com/en-us/product/power-bi-visuals/WA104380820?tab=Overview
Hope this helps.
I have a table Visual where the Data like Date,Description,Value,Type are present. If the one of the 'Type' value is clicked the Next row should expand showing the details related to that type , like - > ID, Message. Also the Expanded detailed row should come up only when the selected user group does the Type selection within the same Power BI table visual.
I have created 2 tables.I have created the relationship between these two tables using the ID column.Since its the OLAP based Report, I have created the RLS implementation on the 2nd table for the particular user group.
Yes, create a hierarchy in your model. In the fields pane right-click Type and click New hierarchy. Then right-click ID and click Add to hierarchy. Many visuals like the Matrix and others, will then offer drill down.
I have to take charge of power bi's reports and there are really a lot of measures. Many of them are test measures that are useless and I would like to delete all unused measures. Is there a method to do this easily or should each page of the report be reviewed for each measure if it is used?
Radacad has created a power bi cleanup tool. This should do what you require.
PowerBI Helper
Radcad's tool is good, but it won't actually let you delete the measures. It shows you the tables that aren't used in the visualizations so you can hide them. But I can't find a way to see any unused measures, much less delete them.
Go to Model view -> under Fields, select multiple measures to be deleted by holding CTRL/Shift key, press delete button. I encountered the same issue and resolved it by changing the view in Power Bi. I hope this is applicable on your end too.
I found this online... it looks like it might be a useful hack.
With the option Enter Data, you can quickly create a new empty table to place your test measures.
After testing, move the correct measures to a final table and remove the test table with all other measures.
https://community.powerbi.com/t5/Desktop/Best-way-to-delete-multiple-measures-in-tables/td-p/415716
This feature is already available in the model view.
If you go to the model view, by clicking on expand button for the data table where you want to delete a group of measures the list of all columns and measures will be displayed. Then you can use CTRL or shift buttons to select multiple measures. After the desired selection, by right clicking over it you have an option "Delete from model" to delete the selected measures at once.
Hope this solves your problem.
i have created Power bi project, It is working fine in the beginning but when i refresh my datasource , i get this error " not allowed for columns on the one side of a many-to-one relationship" . Any can help me ??
I resolved this issue by going into the relationship, right clicking to view properties,
and making it a Many to One Relationship.
Power BI sometimes automatically creates relationships between the queries that are being used to drive the data in the reports. When I have encountered this error or errors like it in the past I:
Go into Manage Relationships
Verify that there is a relationship listed
Evaluate the From and To relationships that are listed as active
Delete any invalid From and To relationships between separate data sets
My most common issue in the past has been that I will have two very different queries pulling data from separate sources with similar column names and Power BI will generate a relationship between them that is invalid. After removing the relationship it has always resolved my issue.
In my case issue was related to the fact that Power BI was threating "SQL View" as a "Table" and as a result it was creating relations for it.
Although I've checked the "Manage Relationships":
and removed one relation which was not reasonable the issue was still persisting.
Then issue solved when I had looked in the "Relations"
tab and found unreasonable relations related to my View and removed them.
None of these answers helped me. For me I received this error when trying to refresh my dataset which had previously worked for some time. After investigating I found the schema of the source database had changed. Two fields that previously didn't allow nulls now allowed nulls and had null values for some rows. My Power BI model still expected these fields not to contain nulls but was throwing this same and very misleading error:
Data source error: Column 'x' in Table 'y' contains blank values and this is not allowed for columns on the one side of a many-to-one relationship or for columns that are used as the primary key of a table. Table: y.
Initially on seeing this error and opening up my report in PowerBI Desktop and going to Modeling > Manage relationships. I looked for a relationship on table y for column x, but no such relationship existed!? Was I confused? You bet.
After investigating further I discovered the database schema change and resolved by updating my Power BI model by going to the data model editor, expanding table y in the Fields panel on the right hand side, selected field x, expanded "Advanced" in the Properties panel and changed "Is nullable" from No to Yes. I then applied the changes, saved the report and refreshed the dataset.
I followed these steps
Step 1: Go to the Model section from the left side of the Power BI Desktop
Step 2: Delete all the relationships (or connections) amongst the tables that have been created by Power BI itself while you were working with the Power Query Editor
Step 3: Click 'Refresh visual and data' option in Home (besides the Transform Data button)
It worked and loaded the new data and also applied the automations done in the query editor.
I got this error on a completely new table made in Power Query, weird since I had no chance to create a relation yet.
Easy fix: Apply a filter that removes all blanks on that column - apply the filter, and then delete this new filter again
Another problem you might have is that "Autodetect new relationships" is turned on:
This is a setting that disables auto-detecting relations under "File/Options & settings/Options/Current File/Data Load/Relationship/Autodetect new relationships after data is loaded"
I had the same issue, after spending hours of searching for a fix and not finding anything, I started scratching around and found the problem took 1second to fix. My issue specifically, was a an additional relationship created within the model. The connection showed up as a "dotted" line one of my tables. I deleted the relationship, refreshed. Done.
This happens when your table or connected tables in excel, contain blank row, for resolving this issue you will need to click anywhere in the excel table, then click on the table tools, then resize table and Select the entire range of cells to include all rows, make sure no blank rows are included then save and get back to your PowerBI then again refresh it, all will work.