Database file used by QlikView, a business intelligence tool; saves an uncompressed 'RAM image' representation of a QlikView table as it was stored in. Using QVD files in QlikView application After creating QVD files in QlikView the next step is how to use QVD files in a QlikView application. In the previous article we created QVD files in QlikView applications.
QlikView (business intelligence utility) database file with an uncompressed 'RAM image' representation of a QlikView table as it was saved in memory when open in QlikView. The file enables the database to be opened and loaded into memory faster. QVD database files are used for saving data for business sales, revenue, costs and profits. The data is used for competitive intelligence and historical, current and predictive analysis.
After opening a QVD file, QlikView stores the database in memory instead of on disk that enables fast data queries and computation.
I am not sure how your load script is set up, but if you wish to refresh your QlikView document, and you don't have QlikView Server, then you can use a batch file as follows: ' QV.exe' /r 'ReportToReload.qvw' The /r command parameter tells QlikView to open the document, reload it and then save and close the document. However, you must make sure that the QlikView User Preference option 'Keep Progress Open after Reload' is not enabled, otherwise the progress dialogue will wait for you to close it after the document has been reloaded. You can then schedule this batch file to run via Windows' Task Scheduler, or your favourite scheduling tool.
QlikView cannot import compressed files (e.g. Zip/RAR etc.), so you would need to extract these first using a batch script.
You can loop over your directory structure and read the existing files in your load script. LET vCustCount = NoOfRows('Kunde'); TRACE Anzahl Kunden: $(vCustCount); FOR i=1 TO $(vCustCount) LET vNameKunde = FieldValue('namekunde',$(i)); FOR each vFile in filelist ('$(vNameKunde)/umsatz.qvd') TRACE $(vFile) hat eine umsatz.qvd; LOAD.
![Qlikview Qlikview](/uploads/1/2/5/6/125631121/885206715.png)
FROM $(vFile) (qvd); NEXT vFile NEXT In this case I load pre-calculated qvd files but you could do the same with txt, csv. And as isawdrones mentioned QlikView cannot import compressed files. If you need to read compressed files you can batch operate them with a unzip tool.
You should have a look at 21.1 Loading Data from Files in the Reference Manual. Following script checks whether qvd exists or not. If, yes then it update it otherwise create a new qvd IF NOT isNull(qvdCreateTime('G: TestQvd Data.qvd')) THEN data2: load.
from G: TestQvd Data.qvd(qvd); FOR each vFille in filelist ('G: Test.' ) LOAD. FROM $(vFille) (txt, codepage is 1252, explicit labels, delimiter is spaces, msq); NEXT vFille ELSE FOR each vFille in filelist ('G: Test.' ) data2: LOAD.
FROM $(vFille) (txt, codepage is 1252, explicit labels, delimiter is spaces, msq); NEXT vFille ENDIF STORE data2 into G: TestQvd Data.qvd; exit Script.