For one of our reports I'm trying to get a count of rows that have the column Canceled with value 1. In the past I used the solution I found on Stackoverflow to use the Sum function with IIF, i.e.
=Sum(iif(Fields!Canceled.Value="True", 1, 0))
But now my source data has multiple rows for one booking_id so I need to add a distinct on that column. In SQL I could easily do
SELECT COUNT(DISTINCT(booking_id)) FROM Booking WHERE Canceled=1
But I can't figure out how to get the same behaviour in Report Builder 3.0. Any ideas?
Doing this in T-SQL, if possible, as suggested in the comments is not a bad idea, but you can do this in the report with an expression like:
=CountDistinct(IIf(Fields!Canceled.Value = 1, Fields!booking_id.Value, Nothing))
CountDistinct will ignore Nothing (i.e. Null) records, so you can apply a CountDistinct to an IIf expression that returns booking_id or Nothing based on Canceled.
Related
My current definitions for this report are like this:
DataSet A = a pretty extensive query with 'AND ai.Channel IN (#ChannelParameter)'
DataSet B = Channel 'Select distinct channel from Account_Info'
result set 'Retail Channel' or 'Wholesale'
Parameter = #ChannelParameter is set to Allow Multiple Values and is Getting the values from Query.
Tablix Properties - Filters
Expression [Channel]
Operator IN
Value =Parameters!ChannelParameter.Value(0)
When I run the report and select 'Retail Channel', I get the correct data.
When I run the report and select 'Wholesale', I get the correct data.
When I run the report and select both values, I get zero rows returned.
When I modify the query for DataSet A to be ai.Channel IN ('Retail Channel','Wholesale'), I get all of the rows. There are no rows in the data where the Channel field is NULL.
I've seen and tried some changes to the expression in the parameter using a JOIN statement, but no better results there.
What am I missing?
You filter expression is incorrect, as you stated (0) that means only the first parameter value will be used.
Having said that, it looks like you are already filtering the data in your A dataset so there is no need for the tablix filter, just remove it.
I have been working on this for days without being able to solve yet. It's probably simple if you know what you're doing. I'm simply trying to make a standalone formula that is not in a tablix or anything, it's just in a textbox.
Here is an example of my Dataset called Dataset1:
What I am trying to get is a sum of the Actual Cost when the Category is Labor from Dataset1. My current expression is:
=Sum(iif(Fields!Category.Value="Labor", Fields!ActualCost.Value, 0), "Dataset1")
I refer to Dataset1 as my scope because otherwise, I get an error about using an aggregate expression without a scope.
The report runs but shows #Error in the textbox that has my expression in it. When I replace Fields!ActualCost.Value with a 1, I get the answer, 5, which is the correct number of rows with Labor as the Category. But it won't let me sum the numbers in the ActualCost column where Category is Labor.
Any ideas as to what I'm doing wrong? I feel like it's something to do with aggregating, but I'm not sure. Thanks!
It may have to do with the datatype of fields!ActualCost.Value. If that field is a decimal (regardless of how you have it formatted), try using cdec(0) instead of just 0 in your expression.
I have tried to create a calculated field that will show the number of customer transactions processed within 15 minutes.
I have added the expression:
=count(fields!wait.Value<15)
However, when I run the query I'm getting the error message : 'expression used for the calculated field includes an aggregate RowNumber...'
Can you advise please on how to create a calculated field so I can capture the value I want?
I have tried = SUM(IIF(Fields!wait.Value < 15 , 1, 0)) to no avail.
With many thanks.
Calculated fields added to datasets can't have aggregate functions. The calculated field is essentially adding an extra column to your dataset. It sounds like you may want a variable? Used elsewhere in the report, your second expression would work, or the similar
=Count(IIf(Fields!wait.Value<15, 1, Nothing))
would work too.
In SSRS, I'm trying to calculate the average number of months a client used a program. The programID is the parameter for the whole report. I'm trying to achieve this (not written with real syntax):
=Avg(Fields!length_of_stay.Value, 0))/30.0 WHERE programid = #ProgramID
Using this question, I came up the the following code which is producing an incorrect answer. I tested in SSMS to get the actual values to compare to SSRS results.
=Avg(IIF(Fields!programid.Value = Parameters!ProgramID.Value, Fields!Length_of_Stay.Value, 0))/30.0
The "/30" is used since the value is in days and I need months. I think the issue is using the parameter value chosen; this is my first report trying to calculate expressions with parameters.
Avg returns the average of all non-null numeric values. 0 is not null so it gets included in the average, distorting your result for every row with a different PragramId. Try using Nothing instead:
=Avg(IIF(Fields!programid.Value = Parameters!ProgramID.Value, Fields!Length_of_Stay.Value, Nothing))/30.0
Currently I am trying to average a set of numbers, but with certain conditions.
Is it possible to use an iif() within an avg() and return the correct result?
Furthermore, as of now my computations return a decimal returned to a power (8.9267....E -05).
I tried circumventing the AVG function by conditionally summing and then dividing by a conditional count but it gives me the same results.
Can someone explain why this is returned and offer help?
Currently I have:
=avg(iif((This_case) AND (That_case) AND (This_conditional)
, Fields!ResponseRate.Value
, 0))
Essentially I want the average ResponseRate if certain conditions are met.
The sum function works fine for the conditions but the average doesn't.
You can definitely use IIf within Avg and get the correct results.
Do you want to exclude the False values from the calculation entirely?
In your example you're still including them, just setting them to 0 and hence still including them in the calculation. This might explain your unexpected results.
If you want to exclude them entirely use Nothing instead of 0.
Edit after comment
You can nest an expression in another IIf statement and check for NULL values using IsNothing.
Say your condition average expression is:
=Avg(IIf(Fields!ID.Value > 5, Fields!value.Value, Nothing))
You can return 0 for NULL values with something like:
=IIf(IsNothing(Avg(IIf(Fields!ID.Value > 5, Fields!value.Value, Nothing)))
, 0.0
, Avg(IIf(Fields!ID.Value > 5, Fields!value.Value, Nothing)))
I'd like to add my two cents to this one, a little late, but also valuable. I was able to use the above code to Average out a data set if another record appears X number of times.
=AVG(IIF(Count(Fields!AcctNo.Value, "AcctNo1") = 2, Fields!Limit.Value, Nothing))
So, if the acctno field appears 1 time, avg the limit field for that row group. Ian's example was very helpful