I want row count which is mentioned in the image, to be used in my expression. How can I access it?
Image is here:
As mentioned in the documentation, there are several available variables. It depends on the place where you want to use the variable if it is already filled. This is from the aforementioned page:
NB_LINE: the number of rows processed. This is an After variable and it returns an integer.
So in your case this would be
((Integer) globalMap.get("tFileInputDelimited_2_NB_LINE"))
Talend also offers those variables in component input fields if you press Ctrl + Space.
Related
Good day,
I have component tFileInputRegex and tFlowToIterate to read data from a text file, I saw there are number of row record being process as follow:
Which is 3412 rows, may I know how can I get this value in tJava_2 ?
currently I am using _NB_LINE but getting null:
System.out.println("total is " + (Integer)globalMap.get("tFileInputRegex_1_NB_LINE"));
System.out.println("total2 is " + (Integer)globalMap.get("tFlowToIterate_2_NB_LINE"));
In your example, tJava_2 executes within the iteration, i.e. once for each row. In that component, you can use globalMap.get("tFlowToIterate_2_CURRENT_ITERATION").toString() to get the number of rows processed so far. Please note that instead of casting it to Integer you need to convert it to a string as shown above in order to output it the way you do.
If you need the total number of rows, you can use globalMap.get("tFileInputRegex_1_NB_LINE").toString() - but it is only available after the end of the loop, which means the component where you access it needs to be connected to tFileInputRegex_1 via OnSubjobOk trigger.
Image showing problem
I want to know if there is a way of repeating the result of a column downwards until the change of result.
Attached image shows the problem.
I need 9.1stWC column to fill the number(which is actually a string) all the way down until that number changes.
The column is not null where the blank fields are (9.is null, shows this) so I'm going to have to write additional formulas to show I'm guessing.
I've used previous function but that only shows for the next line down then is blank after.
The replicate string function will go across the column not downwards.
I've looked at a stringVar but cant find a way of making this work on this report.
I'm reserved about grouping as I have a lot of other filters and by grouping I could possibly loose the sequence depending on what I group by.
My aim is to show WC which are equal to the current op line by doing a simple formula after I have managed to populate that column
I will assume your column is a field named {Result.WC}.
Try this:
Create a formula. Let's call it #LastWC.
Use this code in the formula:
shared stringvar sharedLastWC;
if not isnull({Result.WC}) and {Result.WC} <> "" then sharedLastWC := {Result.WC};
sharedLastWC; //returns
Replace the field by the formula.
The idea behind this is to set the shared variable when the field is not blank and not null. So, the variable will hold the last "filled" value.
I can't make a test with the purposed solution right now, but give it a try and make adjusts if you need. Tell me if it does not work.
If the first row can be empty, you may need to create an aditional formula do start the value of the shared variable in the header of the report.
In my main report I get a (small) list of string values from the data base. I then want to use this list for selecting records in a subreport, along with other input parameters:
The user shall be able to select records based on a range of begin and end date -- this is easy using an input parameter of type java.util.Date with "Is For Prompting" set to true. Another criteria shall be one or more items from a list showing values from a data base field. I could define the list in the report template, but then I'd have hard-coded strings (filled from the data base, but at definition time only).
Now the dilemma is: If I define the input parameters in the main report, I cannot get the values for the list beforehand; if I define them in the subreport, I get no prompt at all, so there's no way to set any of them.
So the report requires values for start and end date, and a list of string values to select from (multiple itmes can be selected). This list shall be built from values from the data base. In the subreport all these values shall be joined into a filter for the records. A user shall be able to define the dates and select items from the list manually before executing the report.
Is there a way to achieve this?
After some more hours of trial & error, and some more research, of course, I found that the keyword is "Query-based Input Controls". This documentation describes their creation on the JasperReports Server. Such input controls can be edited in Jaspersoft Studio as well, however, they actually work on the server only. Anyway, this is the solution to my problem.
I am trying to perform an aggregation on a calculated Field in SSRS and am getting the following error:
[rsAggregateReportItemInBody] The Value expression for the textrun 'Textbox43.Paragraphs[0].TextRuns[0]' uses an aggregate function on a report item. Aggregate functions can be used only on report items contained in page headers and footers
This is the formula I tried to use:
=Sum(ReportItems!PlanPurchPrice.Value, "Select_UCPUtilization")
In this Case PlanPurcPrice is also an Expression:
=First(Fields!PawPlanPurchPrice.Value, "Select_UCPUtilization")
Any suggestions on this would be greatly appreciated.
SSRS 2008 does not support the functionality you are looking for unless the report item is located in the header or footer (as is stated in the error message). I would, instead, propose two alternate solutions:
First Option
Place the calculation in your query (if possible) at which point you can then reference the field and the aggregate will work as desired.
Second Option
You essentially want to create the aggregate you're looking to return elsewhere in the report where it is directly connected to the Select_UCPUtilization scope, then reference the aggregated value elsewhere. Follow these steps:
Within the same scope as report item PlanPurchPrice, calculate a sum of the PlanPurchPrice. Name the textbox containing the aggregate something meaningful (e.g., Sum_PlanPurchPrice).
Reference that textbox directly wherever you were trying to use the ReportItems sum before (i.e., =ReportItems!Sum_PlanPurchPrice.Value)
Hide the workaround. Place the aggregate you created in an additional column or row attached to the Select_UCPUtilization scope. Turn the text white, turn off growth and shrinkage, and make the row very tiny (a pixel or two high).
Using the second option, the report item does exist (and is visible, which is important) on the report and contains the sum you are looking to return elsewhere.
Hope this helps. if this doesn't make sense, please reply via comment and I'll help you to the best of my ability.
I have a report with multiple data-sets. Different fields from different data-sets are used in different locations of the report.
In one part of the report, I need to do a calculation using fields from two different data-sets. Is this possible within an expression?
Can I somehow reference the data-set the field is in, in the expression?
For example, I'd like to do something like this:
=Fields.Dataset1.Field / Fields.Dataset2.Field
You can achieve that by specifying the scope of you fields like this:
=First(Fields!fieldName_A.Value, "Dataset1") / First(Fields!fieldName_B.Value, "Dataset2")
Assuming A is 10 and B is 2 and they are of type numeric then you will have the result of 5 when the report renders.
When you are in the expression builder you can choose the Category: Datasets, your desired dataset highlighted under Item: and then double click the desired field under Value: and it will appear in your expression string with the scope added.
Using same logic you can concatenate two fields like so:
=First(Fields!fieldName_A.Value, "Dataset1") & “ “ & First(Fields!fieldName_B.Value, "Dataset2")
As PerPlexSystem writes, asuming you only want to compare the first value from a dataset with values from another dataset, you can use the First function.
However, if you want to compare the values of each row from one dataset with with the values from each row of another dataset, then you will need to use a subreport - see here for further details.
Another option is to use a parameter as a variable. This is helpful if you want to create a calculated field in one of the datasets. This is best applied when the parameter value comes from a dataset with a single record.