I have a row count inside a foreach. I want the variable to have the total number of records that passed through in all iterations of the for each - cumulative sum. However, it seems that only the last iteration holds.
Is there a way to do this?
Thanks
A Row Count component appears in a Data Flow task, not a Foreach task. So, I assume you have a Data Flow task in the Foreach task.
The Row Count component only captures the count for the current run of the Data Flow task. There isn't an inherent way to capture the cumulative total; so, you will have to do it yourself. One way is to create another variable to store the cumulative total and a Script task that adds the Row Count variable to the cumulative count variable. The new Script task would appear in the Foreach task and follow the Data Flow task.
Create two variables:
store row count for current look eg : rowcount
store total row count eh eg : totalRowCount
Use Expression Task after data flow task
totalRowCount = totalRowCount + rowcount
Related
I know this is a tough one but I'm basically trying to say. Give me a service call and its completion date, then give me the Max date for all service calls where the date is less than the date of the service call I'm inquiring about.
Basically the end result I'm looking for is to say was there another service call on this piece of equipment that was within the last 30 days.
So as you can see in the image for say Asset 50698 service call 579032 we have a date of 11/9/2020 the call below that was 10/22/2020 which was less than 30 days. I want to somehow find a way to count how many service calls I have where this has occurred. Is this possible?
I think you're looking for a context operator In, ForEach or ForAll (in in this case)
Add a variable "MaxAssetDate" and assign it a Formula similar to the following based on your column headers.
=Max([Service Call Completion Date] In ([Asset ID];[Service Call])) In (Asset ID])
Then add this as a column. Provided you have a prompt filtering for a given asset or "date" this column will then show the max date for each service call of the same asset ID. Then add a new variable: ServiceCallDaysDiff: Then by using DatesBetween() with "MaxAssetDate" and ServiceCallCompletionDate and DayPeriod; =DatesBetween([ServiceCallCompletionDate];[MaxAssetDate];DayPeriod) you should get a number 0-X. Then add a filter based if the number is between 1 and 30 then you show those records, otherwise hide the rest; or do whatever logic is then needed.
Now if you're dealing with hundreds of thousands of records this isn't ideal as you're putting all the processing on the webi engine when it ideally would occur as an object in the database layer. However if you only have a few thousand records this should be managable.
To add a count of service calls...
add variable: ServiceCallsCount:
=Sum(Sum(If([ServiceCallDaysDiff]=0;0;1)) In ([AssetID]))
this will count the non zero day differents. Note this will extend beyond 30 so if you want to limit by 30 days adjust the if statement to zero out those not between 1 and 30.
This is but one approach: there may be simpler ways.
I have an SSRS line chart that I need to figure out how to hide empty data points - stop the line from making markers/continuing the line where Category Group values are zero:
The values and series and groups are setup as so:
With the data looking like this:
I have tried filtering both at the chart level and the Category Group levels to filter out data that would create groups for Series 2020 and Category October/November/December, this creating or filling those points in my mind:
Where the expression is "=DateSerial(YEAR(today()),MONTH(today()), 1)" achieving the net result of filtering out data points/rows that from an incomplete month - meaning when the report would be run on 10/10/2020, only data from before 10/1/2020 should be used to generate groups.
The problem is that you are using COUNT() which will always return a value, zero if there are no records to count.
I created a simple dataset and using count of FILE_NUMBER I got this (replicating your issue) ...
The easiest way round this is to change the value expression to something like this...
=SUM(IIF(Fields!FILE_NUMBER.Value = Nothing, 0, 1))
This way we add 1 to the sum for every non-empty value and nothing if it's empty. If the total sum is still empty, by default, the chart will not plot that point.
So we end up with this...
i want to read first line of the flat-file containing date value and compare with a user variable defined in 2008 SSIS package without using sript task.
This solution is a bit long for what the simple task you require but since you don't you want to use script task, you can try below:
Create variable to store the date value from your flat file
Create a data flow task to import the flat file into a SQL table.
Add an Execute SQL task to get the first line from the SQL table and map the result
set to the variable created at step 1.
You can now compare the variable created and the one you already have.
e.g #[User::NewVariableCreated] == #[User::ExistingVariable]
This will return a Boolean data type result of True or False depending on the values supplied.
Hope this helps.
One option is to use a Conditional Split. Within this task, a condition can then be added comparing the date column of each row with the variable. A basic example of a condition for this is below, which checks to see if the date column of each row is equivalent to or more recent than the date variable. From here, the rows be directed based off whichever condition they match.
FlatFileDateColumn >= #[User::DateVariable]
I am quite new to SSRS and have what I imagine is a pretty simple question. I have the set up pictured below.
What I'm looking for is a list of dates that data exists for then a nested list of outcomes and then how many of each of those outcomes there were on that date. What I get is this,
I want 6/10/2016 > ABORT > to be 3 instead of 1 1 1. What am I doing wrong? Is it possible that I need to change my query somehow?
Try using:
=COUNT(Fields!sys_OUTCOME.Value,"sys_OUTCOME")
If you don't want to see details rows delete the Details group in the Row Groups pane.
Code Explanation:
COUNT: Returns a count of non-null values specified by the expression,
evaluated in the context of the given scope.
REFERENCE
Every aggregation function can summarize data in a given context of the given scope. In this case the scope I passed to the COUNT function is "sys_OUTCOME" group name (Row Groups) so it will return the count of sys_OUTCOME values by sys_OUTCOME group. If you don't specify the group scope it will count every row without grouping what you was getting initially.
Let me know if this helps.
I have a SSIS package where1 record (hard coded) flow through.
I have variable in DFT scope.
I assign value to variable using Row Count Transaformation.
The value should be 1 i verify it by using script component.
public override void PostExecute()
{
System.Windows.Forms.MessageBox.Show(ReadWriteVariables[0].Value.ToString());
base.PostExecute();
/*
Add your code here for postprocessing or remove if not needed
You can set read/write variables here, for example:
Variables.MyIntVar = 100
*/
}
I look for zero condition through condition in Conditional split transformation.
Strangely it satisfies equal to zero condition whrease I think it should have value 1. Even Messagebox through script component shows value 1.
what could be the reason? Are value in varible realize only towards end of DFT or Conditional Split has some problem reading correct value or something else which i am not able to think up?
The value for variable being assigned inside a data flow task can't be used in the split transformation or later in the Data Flow task . The values generally get populated once DFT gets completed .
Variable values does not update during the execution of Data Flow task
Even though you are able to see value 1 or set some other value to Variable from script transformation in post or pre execution events ,these values gets effected only after the execution of DFT
Hence the updated value can be used in precedence constraint or other tasks in control flow .
Read this article .
Alternatively you can use RANK Function as one of the columns, latter use Conditional split with max function to get the number of rows selected (in directly row count). Next you can use Copy column and remove RANK column before inserting into final destination. Hope this helps!