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.


About QVD Files

A QVD file holds exactly one data table and consists of three parts:

A well-formed XML header (in UTF-8 charset) describing the fields in the table, the layout of the subsequent information and some other meta-data.
Symbol tables in a byte stuffed format.
Actual table data in a bit-stuffed format.

A QVD contains the physical representation of an in-memory Qlikview Table.
This “RAM image” format is what allows an optimized QVD load to be so quick. The physical blocks of the disk are read directly into RAM, “ready to go”.

 

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