I am struggling with storing a set analysis expression's value in a variable.
I want to store below expression's value in a variable so that i can use that further for some calculations.
Min({< Data_Period = {'Weekly'},Formatted_Date = {'>$(=$(vSelectedWeek))'}>} Date,2)
The above expression works fine if i use it in a text box on a sheet tab. However, it is not working if i try to store its value in a variable and use that variable.
Set vW1 = Min({< Data_Period = {'Weekly'},Formatted_Date = {'>$(=$(vSelectedWeek))'}>} Date,2);
Here vSelectedWeek is being calculated as follows:
Set vSelectedWeek = Date(Weekstart(Only(BaseData_Date)),'dd/MM/YYYY');
Please advise if i am doing anything wrong or is there any other way around to achieve the same?
Thanks in advance.
If your var is truly working with that expression then try creating an input box object, define your var there and add the expression in the right column.
That should work.
If you find my answer to be pretty simple or not the way you want it, checking this link might help: https://community.qlik.com/thread/198307
Related
Is there any reason that this syntax shouldn't work in Qlikview load script??
Let v_myNumber = year(today());
Let v_myString = '2017-08';
If left($(v_myString),4) = text($(v_myNumber)) Then
'do something
Else
'do something else
End If;
I've tried both ways where I convert variable string to number and evaluate against the number variable directly and this way. They won't evaluate to equivalence when they should..
Left function is expecting a string as is getting something else as a parameter. As you are currently doing, the function will be called as Left(2017-08, 4) which is unhandle by QlikView.
If you use Left('$(v_myString)',4), it will evaluate as Left('2017-08', 4) as work as expected. Just adding quotes around the variable it should work.
Although QlikView calls them variables, they should really be seen as "stuff to replaced (at sometimes evaluated) at runtime", which is slightly different from a standard "variable" behaviour.
Dollar sign expansion is a big subject, but in short:
if you are setting a variable - no need for $().
if you are using a variable - you can use $(). depends on its context.
if you are using a variable that needs to be evaluated - you have to use $().
for example in a load script: let var1 = 'if(a=1,1,2)' - here later on the script you will probably want to use this variable as $(var1) so it will be evaluated on the fly...
I hope its a little more clear now. variable can be used in many ways at even can take parameters!
for example:
var2 = $1*$2
and then you can use like this: $(var2(2,3)) which will yield 6
For further exploration of this, I would suggest reading this
I would perform data masking for more than 10 tables and each tables has more than 100 columns.
I'd tried to mask data using pentaho PDI tool, but I couldn't find out how should I write mask data with it.
How should I perform data masking with Pentaho?
I think one of the way is to use tool named "replace in String" but I couldn't change any string even if I tried to use it.
my question is,
Is it correct way to use "replace in String" in order to do data
masking.
if it is correct, how should I fill the value in the respective field?
I want to replace some value with *, let's say, the value is "this is sample value" it should be "txxx xx xxxxx xxxxe" some thing like this.
please help.
It's not about kettle, it's about regexp.
I can confirm that "String Replace" has strange unpredictable behavior, in case of using regex inside this step. There is no explanation of "Replace String" step in official docs as well, not much actually.
Anyway u can use RegexEvaluation step to capture needed part and replace inside original string.
But there is workaround which makes it easier
JavaScript-Step with str.replace
This can be done by using a javascript-step, like:
//variable
var str = data_to_mask;
//first letter
var first = str.match(/^[A-Za-z0-9]/);
//last letter
var last = str.match(/[A-Za-z0-9]$/);
//replace all with "x"
str = str.replace(/[A-Za-z0-9]/gi, "x");
//get the first and the last letter back
str = str.replace(/^[A-Za-z0-9]/, first);
str = str.replace(/[A-Za-z0-9]$/, last);
(Simar's answer works as well I think and maybe it's a bit more elegant :)
I am using JasperStudio 5.6.0.final and the report is not generated dynamically from java code.
I have a problem with getting single value from parameter.
In the report I have a parameter A of a type List.
It is not a problem to use it in a clause as IN statement:
AND $X{IN, USER.ID_USER, A}
But I have a problem to get a single value from that list.
I know that my List has always 10 values.
So I want to use it in query, but I don't know how to write the statement:
AND USER.ID_USER = *first_value_of_list_A*
e.g.
AND USER.ID_USER = $P!{Atrybuty}.get(1)
doesn't work
I tried also to assign parameter value to a variable, but as I know it isn't possible to use variables in queryString.
So my question: How to get single value from parameter List in queryString.
What you need to do for this is use
AND $X{IN, USER.ID_USER, A}
Set A type as Collection and that will allow you to even have a single selection or multi selection or just a single value.
Hope that this helps.
Example from Qlikview help:
sum( {$<Year = {“>1978<2004”}>} Sales )
I try this code, but it did't works
Count( {$<Damages.DamageDate = {">Min(OtherDate)"}>} Damages.Id)
Looks like qlikview did't support dates in inequalities.
Any way if anyowne know how to do things like this please help.
As I remember, you must use a dollar-sign expansion within the set expression. Look up "Set Modifiers with Dollar-Sign Expansions" in the manual. The Min function will then be evaluated and so the set expression should work.
It will look sg like this:
Count( {$<Damages.DamageDate = {">$(=Min(OtherDate))"}>} Damages.Id)
Or perhaps
Count( {$<Damages.DamageDate = {">$(#=Min(OtherDate))"}>} Damages.Id)
I'd use
// Reopen or share this result by using the following Url:
// http://tools.qlikblog.at/SetAnalysisWizard/?sa=J0LC
Count({$<[Damages.DamageDate]={">$(=Min(OtherDate))"}>}[Damages.Id])
Note: I think you should square brackets for qualified field names like "Damages.DamageDate".
You can use the Set Analysis Wizard to change the expression.
Hope this helps!
Regards
Stefan
Another posibility to your question is create a variable for example: vMinDate = Min(OtherDate)
And then you can use your variable in the expression like this:
Count( {$<Damages.DamageDate = {'$(vMinDate)'}>} Damages.Id)
I not find the way how to calculate what I need in qlikview, but I workaround it by make all calculation in sql query.
UPDATE:
Also combination of count and if may be helpful. And don't forget place user selected values into document variables before use it in expressions
I want to update a custom user field in QC using the Label of field instead of the name
At the moment we are doing it this way
Set currentRun = QCUtil.CurrentRun
currentRun.Field("RN_USER_03") = 1
currentRun.Post
But I would like to do it this way
Set currentRun = QCUtil.CurrentRun
currentRun.Field("Data Rows Passed") = 4
currentRun.Post
But I can't find the method to do it with.
Any Ideas?
Implying all labels are unique (which I doubt..):
You could create a function which accepts a label, searches in QC's tables that define customized fields for the correct field definition, and returns the field name. Then use the function's result value as the indexed property's index.
Suppose that function would be called "GetNameOfLabel", then the Caller's code would look like:
Set currentRun = QCUtil.CurrentRun
currentRun.Field(GetNameOfLabel ("Data Rows Passed")) = 1
currentRun.Post
Of course, the function would not really be trivial, but easy enough after some digging in the QC data model and finding an efficient way to fetch the name from the DB via SQL.
Or, the function could look up the name in an array, or a dictionary, then you would have to maintain that dictionary, but you would not have to go to the database for each lookup.
Disadventages:
Scripts with the wrong label might be harder to be debug
If labels are not unique, it might be real "fun" to debug
If looking up on the DB:
All scripts slow down if you don't cache, or pre-load, SQL query results for those lookups;
complexity, as you have to do the right SQL query, and you depend on QC's data model in a quite peculiar way (usually a horror when you're upgrading)
If looking up in an array, or dictionary:
You either must maintain its initialization (bet other admin guys adding a cust field will forget that easily), or must "load" it from QC's table (which is a bit like the SQL solution above, and has the same downsides).
I'd go with the array/dictionary-initialized-from-db-idea. Or, if you can live with the constant idea already presented, that one is a good bet. Considering that there is no session-independent scope in QCs customizing scripts, the SQL access idea might really kill performance because it would have to be executed for every new user session. Which is why I, too, +1'd the constant idea.
Look at this:
Dim gFieldLabelToNameDICT: Set gFieldLabelToNameDICT = CreateObject("Scripting.Dictionary")
gFieldLabelToNameDICT.CompareMode = vbTextCompare
Function GetNameOfLabel (strFieldLabel)
' If it doesn't exist yet in fieldLabelToName dict -> search it using TDC and add it to the list to improve performance
If Not gFieldLabelToNameDICT.Exists(strFieldLabel) Then
Dim testSetFields As List
Dim testSetFields: Set testSetFields = QCUtil.QCConnection.Customization.Fields.Fields("RUN")
For Each aField in testSetFields
If aField.UserLabel = strFieldLabel Then
gFieldLabelToNameDICT.Item(strFieldLabel) = aField.ColumnName
End If
Next aField
End If
GetNameOfLabel = gFieldLabelToNameDICT.Item(strFieldLabel)
End Function
Maybe you shall want to add some more error handling, such us considering the case that the label is not found.