I recommend to you some links to start getting more information about Expressor, Metadata and Data Governance:
Hello Deepak - there are numerous advantages - however they all depend on the particular use case and / or business problem.
Please review this post: Data Governance & Data Management with QlikView & QlikView Expressor
Please find below,
I got below things after investigation
table struct already there
metadata is table struct
metadata pulling data from source and load into target
Benefit of expressor
compatible with Qlikview
We can read and write QVD by using expressor,we can also create QVDs by using expressor such kind of things not possible in other ETL tools
we can create connectivity by expressor with QV
Please suggest if anything remains.
Hi Deepak - other items can be found here in these PDFs more detail:
Power Data Integration and Metadata Management for QlikView:
Things such as data conformance, search, reusable repository of development components, data quality and constraints and redirection - etc are also key factors.
Hope this helps.