Is there any documentation where we can find the list of all Qualys database tables?
I'd consider that highly proprietary and sensitive information and extremely unlikely to be shared. And Qualys doesn't expose any database tables for direct querying in any case.
What is your use case? What about the Qualys data are you trying to understand?
We are building some KPIs on Qualys data. The data would be pulled into a data warehousing system and the modelling (tables joins, calculations, filters etc) would be performed in the data warehousing side. We will get the data using APIs not through direct access. The table list will help us to understand the structure and the relationship between them.
I have done something similar. You would need to first list what data your getting from Qualys. For example if you getting just the Asset/Vulnerability data from the Vulnerability Management side. If you are then getting data from Web Application scanning you may need to build your own relation ship.
Our Qualys API Documentation | Qualys, Inc. includes XML/DTD information you may find useful.
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