v2.3v2.4v2.5v2.6v2.7v2.8
EVL
EVLEVL ANONYMIZATIONEVL ANONYMIZATION QUICK STARTEVL ANONYMIZATION QUICK START (CZ)EVL ANONYMIZATION QUICK START (DE)EVL MANAGEREVL QVD UTILS
EVLEVL DATA ANONYMIZATIONEVL DATA ANONYMIZATION QUICK STARTEVL DATA ANONYMIZATION QUICK START (CZ)EVL DATA ANONYMIZATION QUICK START (DE)EVL MANAGEREVL QVD UTILS
EVLEVL DATA ANONYMIZATIONEVL DATA ANONYMIZATION QUICK STARTEVL DATA ANONYMIZATION QUICK START (CZ)EVL DATA ANONYMIZATION QUICK START (DE)EVL MANAGEREVL QVD UTILS
EVLEVL DATA ANONYMIZATIONEVL DATA ANONYMIZATION QUICK STARTEVL DATA ANONYMIZATION QUICK START (CZ)EVL DATA ANONYMIZATION QUICK START (DE)EVL MANAGEREVL QVD UTILS
EVLEVL DATA ANONYMIZATIONEVL DATA ANONYMIZATION QUICK STARTEVL DATA ANONYMIZATION QUICK START (CZ)EVL DATA ANONYMIZATION QUICK START (DE)EVL MANAGEREVL QVD UTILS

EVL – QVD Utils

Products, services and company names referenced in this document may be either trademarks or registered trademarks of their respective owners.

Copyright © 2017–2023 EVL Tool, s.r.o.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts.

Introduction

QVD Utils enables reading/writing QVD files without a need to use Qlik Sense or QlikView. Also provides metadata from QVD/QVX header. It is useful when you need to convert various sources directly to/from a QVD file and you don’t want to overload your Qlik server by processing many, or large, QVD files.

QVD Utils used standalone

../images/QVD-Utils/QVD-Utils-standalone

Having QVD Utils without any other EVL Microservice contain these scripts:

  • csv2evd – generate EVL data definition file (EVD file) based on CSV
  • csv2qvd – convert CSV to QVD
  • qvd2csv – convert QVD to CSV
  • qvd2evd – generate EVL data definition file (EVD file) based on QVD
  • qvd-header – get information from QVD header, like field names as JSON, or number of records

QVD Utils in combination with other Microservices

../images/QVD-Utils/QVD-Utils-combinations

In join with other EVL Microservices, like Hadoop Utils or EVL Data Hub, you can also read/write:

  • various file formats: Avro, json, Parquet, xlsx, and xml,
  • database tables: MySQL, PostgreSQL, Oracle, SQLite, Teradata, or any other by ODBC.

QVD Utils with EVL Tool

Together with EVL Tool (an ETL tool) it can be used for example in QVD-based architecture:

../images/QVD-Utils/QVD-based_Architecture