QlikView

  • 0011 How to Convert Hyper into QVD File

    This Example Demonstrates how to convert a Tableau Hyper file into Qlik QVD File
    What is Hyper?

    Hyper is Tableau's in-memory Data Engine technology optimized for fast data ingest and analytical query processing on large or complex data sets.

    What is QVD?

    A QVD (QlikView Data) file is a file containing a table of data exported from QlikView. QVD is a native QlikView format.

    Steps to follow

    • Download and install Advanced ETL Processor 64-bit [Link]
    • Download and Unzip example[Link]
    • Create a new transformation and open the .ats file

    Converting Hyper into QVD 

    • Double click on the Reader object and amend the source file path

    Hyper Data Reader

    • Double click on the Writer object and amend the target file path
    • Run the transformation by pressing the green arrow.

     

    Please contact us if you need help with transforming the data

    Visit ETL Tools Forum
  • 01 Editing QVD Files using Q-Eye

     

    If you are stuck post your question on our support forum and we will do our best to assist you

  • 02 QVD File field types

     

    If you are stuck post your question on our support forum and we will do our best to assist you

  • 03 Extracting data from QVD files

    This tutorial demonstrates how to extract data from QlikView QVD files with Advanced ETL Processor

    It is intended for users familiar with fundamental ETL operations, but who have limited exposure to the new features available in  Advanced ETL Processor.

     

    All our ETL tools have no limitations, which means you can load your data today and solve all the data quality problems right now.

    Our WIKI has more detailed information, if you are stuck post your question on our support forum and we will do our best to assist you

  • 04 Creating QVD files without QlikView

    This tutorial demonstrates how to create Qlik QVD files with Advanced ETL Processor

     

    All our ETL tools have no limitations, which means you can load your data today and solve all the data quality problems right now.

    Our WIKI has more detailed information if you are stuck post your question on our support forum and we will do our best to assist you

  • 37 Converting QVD file into TDE file

    Learn How to Convert QVD file into TDE file

    tableau partner
    What are QVD Files?

    QVD is a native Qlik format and can only be written to and read by Qlik Sense or QlikView. The file format is optimized for speed when reading data from a script but it is still very compact. Reading data from a QVD file is typically 10-100 times faster than reading from other data sources.

    Source: Qlik help

    What are TDE Files?

    The TDE data file format is used by Tableau Desktop, a whiteboard visualization and analysis application. It may contain data extracted from external sources such as Microsoft Excel and Microsoft Access. TDE files are used for storing external data in a format recognized by the Tableau software.

    Source: openthefile

    All our ETL tools have no limitations, that means you can load your data today and solve all the data quality problems right now.

    Our WIKI has more detailed information if you are stuck post your question on our support forum and we will do our best to assist you

  • 42 Extracting data from QVD files

    Extracting data from QVD files

    This tutorial demonstrates how data can be extracted from QlikView QVD files with Advanced ETL Processor

    It is intended for users familiar with fundamental ETL operations, but who have limited exposure to the new features available in  Advanced ETL Processor.

    All our ETL tools have no limitations, that means you can load your data today and solve all the data quality problems right now.

    Our WIKI has more detailed information if you are stuck post your question on our support forum and we will do our best to assist you

  • Advanced ETL Processor QlikView automation package

    Problem:

    We have a scenario where we have a large data source that is currently used to produce a single QVW. What we would like to do is produce a number of smaller QVWs using e.g. Publisher - however, we would like to define the reload schedule and destination folders that these smaller QVWs end up in from an external MySQL table (or config file or similar), rather than through the Publisher GUI. Has anyone done anything similar, or got any recommendations on how to approach this?

    Original Post on LinkedIn

    Solution: Advanced ETL Processor QlikView automation package

    The package is executed from the left to the right starting from "Init Variables" object

    Package

    First of all, we've created the following table to store parameters, it can be extended if necessary

    table

    Table data:

    TableDetails

    Step 1: Init variables.

    Variables are used to replace one string with another, for example anywhere in the package where <RoorDirectory> is found it will be replaced with c:\Customers.

    Variables1

  • Automating loading QlikView dashboards in distributed environment

    Advanced ETL Processor is a perfect solution for automating QVX file generation in a complex enterprise environment

    • QVX files can be generated in HQ or Regional offices
    • Data can be transferred via FTP, HTTP, EMAIL, file servers or downloaded from the WEB
    • The entire database can be saved into QVX files with just a few clicks
    • Complex data transformation and validation can be performed on the fly
    • In case of failure, the solution provider support team can be notified via email
    Direct link, no registration required.
  • Check content of QVD files using windows explorer

    Version 4 of  Q-Eye is available for download.

    This version is tightly integrated with windows explorer so it is possible to preview the content of QVD and QVX files without opening the files

    Q-Eye4Preview

     

    Q-Eye4

    Please support the development of Q-Eye by donating

    Donate

  • Create QVD files up to 13 times faster

    Great news Advanced ETL Processor generates QVD files up to 13 times faster

    Here are our test results:
    VersionRecords per secondTime Taken
    5.8.0.18 50,882 59sec
    5.8.0.6 3,732 13min 23sec

    Generate QVD Files New Version

     Generate QVD Files OLD Version

    Reading QVD files is faster as well:
    VersionRecords per secondTime Taken
    5.8.0.18 179,964 16sec
    5.8.0.6 56,074 53sec

    Read QVD Files New Version

     Read QVD Files Old Version

    Notes:

    1. The performance also depends on the hardware configuration
    2. Please use our support forum to provide us with feedback
    Direct link, no registration required.
  • Creating QVX files

    The latest version of Advanced ETL Processor can create 14000 QVX records per second, approximately 1 million records per minute.

    This is 10x increase comparing to the previous version!

    Creating QVX

    There are two ways of creating QVX files using packages or from the transformation. It is possible to save all tables in the database into QVX files with several clicks. And it is also possible to perform complex data transformations.

    Direct link, no registration required.
  • Edit QlikView QVD and QVX files

    Great news: Q-Eye version 2 can now edit QlikView QVD and QVX files

       

    QVD Files Viewer

     

    Download Q-Eye 32 Bit Download Q-Eye 64 Bit Download Q-Eye Portable Version

  • Edit very large QVD files

    The new version of Q-Eye is available for download. In this release, we've addressed problems with working with very large Qvd files (>3.5 gigs)  and fixed problems with reading fields with no values.

    Q Eye Large QVDS

     

    Visit Support Forum

    Please support the development of Q-Eye by donating

    Donate

    Download Q-Eye 32 Bit Download Q-Eye 64 Bit Download Q-Eye Portable Version
  • Editing resident tables in QlikView

    The release of Q-Eye allows QlikView users to view and even edit residential tables.

    Here are some examples:

    1. Viewing Data

    SUB INSPECT (T)
     LET LocalAppDataPath = GetRegistryString( 'HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion' ,  'ProgramFilesDir' );
     LET QViewerPath = '$( LocalAppDataPath )\DB Software Laboratory\Q-Eye\QEye.exe';
     STORE $(T) into [$(QvWorkPath)\~$(T).qvd] (qvd);
     EXECUTE "$(QViewerPath)" "$(QvWorkPath)\~$(T).qvd";
     EXECUTE cmd /c del "$(QvWorkPath)\~$(T).qvd";
    ENDSUB

    2. Editing Data

    SUB EDIT (T)
     LET LocalAppDataPath = GetRegistryString( 'HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion',  'ProgramFilesDir' );
     LET QViewerPath = '$( LocalAppDataPath )\DB Software Laboratory\Q-Eye\QEye.exe';
     STORE $(T) into [$(QvWorkPath)\~$(T).qvd] (qvd);
     EXECUTE "$(QViewerPath)" "$(QvWorkPath)\~$(T).qvd";
     DROP TABLE $(T);
     LOAD * FROM [$(QvWorkPath)\~$(T).qvd] (qvd);
     EXECUTE cmd /c del "$(QvWorkPath)\~$(T).qvd";
    ENDSUB


    If we want to edit the table we just

    CALL EDIT('Log');

    Or if we want to view the table we use this code

    CALL INSPECT('Log');

    Note: By default Q-Eye uses partial load, to avoid problems load the entire QVD file before editing it 


    This example is based on:
    http://bi-review.blogspot.co.uk/2012/12/how-to-look-inside-resident-tables-at.html

  • Generating QVD Files

    Advanced ETL Processor can now generate QVD files from the following data sources: Text, XML, Excel, Access, DBF, Foxpro, ODBC, OLE DB, MS SQL Server, Oracle, MySql, PostgreSQL, Firebird, Interbase, SQLite, POP3, RSS, Windows Event Log, Google Spreadsheets, SalesForce, Brightpearl and QlikView QVX files.


    Advanced ETL Processor currently supports 20 data targets and 27 data sources

    About QVD Files

    A QVD (QlikView Data) file is a file containing a table of data exported from QlikView. QVD is a native QlikView format and can only be written to and read by QlikView. (NOT ANY MORE) The file format is optimized for speed when reading data from a QlikView script but it is still very compact. Reading data from a QVD file is typically 10-100 times faster than reading from other data sources.

    QVD files can be read in two modes, standard (fast) and super-fast. The selected mode is determined automatically by the QlikView script engine. The super-fast mode can be utilized only when all fields or a subset thereof are read without any transformations (formulas acting upon the fields), though the renaming of fields is allowed.

    Note:

    We did a lot of testing but there is a chance that we missed something, so if you find any problems please post your comments on our support forum and we will do our best to help you.
    Direct link, no registration required.
  • Help needed with testing of our Freeware QVD editor.

    We have just released version 3.5 of Q-Eye.

    This version loads and saves QVD files much faster. (Between 2 and 5 times on our test computers)

    Q-Eye3.5

    Performance is not guaranteed and depends on number factors such as: Hardware configuration, Size of files, Number of distinct fields values

    Since QVD is a closed format it is not possible to test it completely. Therefore we would like to ask QlikView users to assist us with testing.  

    Approximate test plan:
    Performance Test  

    Find the largest possible qvd file and load it completely into Q-Eye (Record the time took)   
    Find the largest possible qvd file and load it completely into QlikView (Record the time took)

    Data Quality test

    Open a number of qvd files and load them completely into Q-Eye.   
    Save the files.   
    Load the files into QlikView and check for data corruption.

    Data format test  

    Create a QVD file manually by editing the data in Q-Eye.   
    Make sure that you are using all possible formats (text, numeric, date) and languages   
    (We are especially interested in testing non-English languages)   
    Save the file.   
    Load the file into QlikView and compare the data.

    Please support the development of Q-Eye by donating

    Donate

  • Learn how to load data from QVD files

    Advanced ETL Processor Enterprise: Loading QVD file into SQL Server

     

    All our ETL tools have no limitations, which means you can load your data today and solve all the data quality problems right now.

    Direct link, no registration required.
  • Loading QVD files into the database

    Great news: both Visual Importer ETL and Advanced ETL Processor can now load data from QVD files into various databases.
    Such as Excel, Access, DBF, Foxpro, ODBC, OLE DB, MS SQL Server, Oracle, MySql, PostgreSQL, Firebird, Interbase, SQLite and more...

    Load Data from QVD Files

    Note:

    We did a lot of testing but there is a chance that we missed something, so if you find any problems please post your comments on our support forum and we will do our best to help you.

  • Migrating from QlikView to Tableau

    Here how our customers use Advanced ETL Processor for data migration

    tableau partner
    Converting QVD files to TDE files

    The largest QVD file has 22 million records and it is 5.9 gigabytes in size

    Files

    Using Advanced ETL Processor 64 bit and latest tableau SDK (9.2)

    QVD To TDE 64

    It took 36 minutes to convert the data with an average speed of 10k per second.

    Notes:

    1. Performance depends on a number of factors: Hardware, hard disk performance, number of fields and the complexity of transformations
    2. 32-bit version slightly slower for the file's creation
    3. Always use the 64-bit version with large QVD's
    4. Please post your questions and suggestions on our ETL Forum
    Direct link, no registration required.

Page 1 of 2

 

This site uses cookies. By continuing to browse the site, you are agreeing to our use of cookies