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I have requirement to load a whole week data to Fact QVD . How to append new data to existing QVD
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Assuming you are receiving weekly or daily data dump (as flatfile or table in DBMS).
In load script
Step 1: Read QVD with previous dump
Step 2: Read latest data dump from the source, make sure QVD table structure (fields names and number of fields) and this new dump table structure are same. Qlik will do automatic concatenation.