I have created 4 separate tables via sql code on sqlserver and I want to create one filter for all 4 using a common column i.e. month on power query. Usually, I would create 4 pivot tables and create 4 slicers for say, month. Can I dynamically create just one filter for the 4 pivots on PQ? I have seen examples of anti-joins but I don't see this working in my example. If any questions like this already exist, links to them will be much appreciated.
Cheers,
Mo
Table.SelectRows can takes a function as its second parameter, so you can create your filter function in one query and reference that query in the parameter.
For example, if I wanted to filter a column Value to only have numbers greater than 30, you would create a query with the following formula:
= (row) => row[Value] > 30
Let's call that query FilterValue. Then, if you wanted to use this filter on a table in step Step, you would add the following step (with the fx button next to the formula bar):
= Table.SelectRows(Step, FilterValue)
If you need to use the filter again in another query with the step OtherStep, add the following step:
= Table.SelectRows(OtherStep, FilterValue)
Related
I have data from two tables modelled as follows:
my desired result is:
I've tried SUM(table1[balance],ALLEXCEPT(table1,table1[account])) - doesn't work
this may be simple, but PowerBi is evading me at this point...
Pretty simple to solve it by with extra steps to complete it:
First, on your second table (I named it "cust"), add a new column with the balance from your first table (I named it "acc"):
Balance = LOOKUPVALUE(acc[balance],acc[account ],cust[account])
Cust
Next, I will add a new column to lookupvalue on my "acc" table, follow by adding new column to return the sum value from my "cust" table:
sum = CALCULATE(SUM(cust[Balance]),FILTER(cust,cust[customer ]=EARLIER(acc[customer])))
Acc
How to write this expression in PowerBI
select distinct([date]),Temperature from Device47A8F where Temperature>25
Totally new to PowerBI. Is there any tool that can change the query from sql to PowerBI expression?
I have tried so many type of different type of expressions but getting error, Most of the time I am getting this:
The expression refers to multiple columns. Multiple columns cannot be converted to a scalar value.
Need help, Thanks.
After I posted my answer, wondered if your expected result is get only one date by temperature, In other words, without repeated dates in your result set.
A side note: select distinct([date]),Temperature from Device47A8F where Temperature>25 returns repeated dates since DISTINCT keyword evaluate distinct columns values specified in the SELECT statement, it doesn't return distinct values in a specific column even if you surround it with parenthesis.
Now what brings us here. What I can see in your error is that you are trying to use a table-valued (produces a table with multiple columns) expression in a measure which only accepts scalar-valued (calculate only one value).
Supposing you have a table like this:
Running your SQL query you will get the highlighted in yellow rows:
You can see 01/09/2016 date is repeated. If you want to create a measure you have to define what calculation you want to show for temperature. i.e, average, max or min etc.
In the below expression is being calculated the maximum temperature greater than 25 per date:
MaxTempGreaterThan25 =
CALCULATE ( MAX ( Device47A8F[Temperature] ), Device47A8F[Temperature] > 25 )
In this case the measure MaxTempGreaterThan25 is calculated per date.
If you don't want to produce a measure but a table. In the Power BI Tool bar select Modeling tab and click New Table icon.
Use this expression:
MyTemperatureTable =
FILTER ( Device47A8F, Device47A8F[Temperature] > 25 )
It should produce a new table named MyTemperatureTable like this:
I recommend you learn some basics about DAX, it is pretty different from SQL / T-SQL and there are things you can't do depending on your model and data.
Let me know if this helps.
You probably don't need to write any code if your objective is to show the result in a Power BI visual e.g. a table. Power BI naturally aggregates data if the datatype is numeric (e.g. Temperature).
I would just add a Table visual on a Report page and add the Date and Temperature columns to it. Then in Visualizations / Fields / Values I would click the little down-arrow on the Temperature field and set the Aggregation e.g. Maximum. Then in Visualizations / Fields / Filters I would click the little down-arrow on the Temperature field and set the Filter e.g. is greater than: 25
Hard-coded solutions are unlikely to survive the next question from your users e.g. "but what if I want to see Temperature > 24? Or 20? Or 30?"
I have a matrix in ssrs2008 like below:
GroupName Zone CompletedVolume
Cancer 1 7
Tunnel 1 10
Surgery 1 64
ComplatedVolume value is coming by a specific expression <<expr>>, which is equal to: [Max(CVolume)]
This matrix is filled by a stored procedure that I am not supposed to change if possible. What I need to do is that not to show the data whose CompletedVolume is <= 50. I tried to go to tablix properties and add a filter like [Max(Q9Volume)] >= 50, but when I try to run the report it says that aggregate functions cannot be used in dataset filters or data region filters. How can I fix this as easy as possible?
Note that adding a where clause in sql query would not solve this issue since there are many other tables use the same SP and they need the data where CompletedVolume <= 50. Any help would be appreciated.
EDIT: I am trying to have the max(Q9Volume) value on SP, but something happening I have never seen before. The query is like:
Select r.* from (select * from results1 union select * from results2) r
left outer join procedures p on r.pid = p.id
The interesting this is there are some columns I see that does not included by neither results1/results2 nor procedures tables when I run the query. For example, there is no column like Q9Volume in the tables (result1, result2 and procedures), however when I run the query I see the columns on the output! How is that possible?
You can set the Row hidden property to True when [Max(CVolume)] is less or equal than 50.
Select the row and go to Row Visibility
Select Show or Hide based on an expression option and use this expression:
=IIF(
Max(Fields!Q9Volume.Value)<=50,
True,False
)
It will show something like this:
Note maximum value for Cancer and Tunnel are 7 and 10 respectively, so
they will be hidden if you apply the above expression.
Let me know if this helps.
My ssrs has three row groups nested, and in one of the rows the report runs many times.
I'd like to add something simple to the rows, such as "%" at the end, but only on the first row returned, not the rest of the dynamic rows. My idea was to use:
=RowNumber("detailsGroup") but all that returns is one for each row. Is there another SSRS method?
I was also thinking of using the "is" operator and comparing the dynamic values to the First operator, but running the report gave #ERROR.
If you are using groups you should be able to use Previous() function.
EXample:
Group 1 - ClientName
Group 2 - Region
Group 3 - SubRegion
Detail - data for above 3 groups
If I just want to add something in one of the detail data then I would use ..
=Fields!CallReason.Value + IIF(Previous(Fields!ClientName.Value) <> Fields!ClientName.Value , " Add Text For First Line", "")
For example I want to filter my data based on next filter expression:
lead_veh_of_interest starts with 'BMW 1'
OR
sale_model starts with 'BMW 1'
how can I achieve this?
Are these fields both in the same table? If so you could create a calculated column that performs that conditional. Then filter the view on the resulting calculated column.
For example you could create the following calculated column.
Calculated Column: "Starts With BMW 1"
Equation:
=IF(OR(Left([lead_veh_of_interest starts], 5) = "BMW 1", Left([sale_Model], 5) = "BMW 1"), 1, 0)
Then in the view set the filter so that [Starts With BMW 1] = 1
I found acceptable solution (thanks for all suggestions - it was very helpful).
First of all I redesigned my model and (how #Mike_Honey suggsts me) created dedicated table with consolidated information I want to filter. Next I connected this new table with existing tables and created hierarchy from fields I want to give to the end users for step-wise filtering (previously I split down old fields contained information I want to filter into more granular level). Now it is possible to filter data by any combination of models in any combination of request types (sale, lead, competitor, etc) using hierarchy.