Hi,
We're in the process of designing a data transformation solution via HANA SQLScript. This involves multiple steps on many DB tables (joins, filters, calculated columns) until the data is ready to be stored into a final DB table. Now repeat this process for many independent business scenarios.
My question is : Is it better from a performance standpoint to use Calculation views(graphical/CE function based) for the multi step transformations and then to consume the view in a stored procedure for update to the DB table (as against pure SQLScript procedure from start to finish)? I'm unsure if the transfer between the Calc engine and SQL Engine will be a significant performance overhead.
Any thoughts or advice will be much appreciated.
Regards,
Nehal Fonseca.