Thanks much for your response and details.
With the recent drop in storage cost for SQL Pool, there’s not a clear cost incentive to use a Data Lake for staging. So this question really comes down to whether you otherwise want a Data Lake.
There’s nothing wrong with using a traditional DW architecture where all the storage tiers are stored in the RDBMS. But that staging data is typically not available for other teams to use. Putting it in a Data Lake is extra work, but enables other projects to access the data, and it allows that data to be combined with non-DW data.
Hope the above info helps.
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