There are more and more file formats nowadays: Parquet format is not the best shiny star any longer. Now, the Delta Lake takes the prim.
Why people do confuse it with Parquet and always talk about files in this case?
In this session, we'll take a look at the evolution of ETL into ELT and its storage aspect, which explain why it is "a must" for modern data warehouse solutions and how is it related Delta Lake technology in cloud environments like Databricks or Synapse Analytics. Finally, we'll check what's Delta-Parquet creature presented in Microsoft Fabric OneLake recently.
We will see also what data layers (stages) are commonly set up and why they make sense.

In this session, we'll take a look at the evolution of ETL into ELT and its storage aspect, which explain why it is "a must" for modern data warehouse solutions and how is it related Delta Lake technology in cloud environments like Databricks, Synapse Analytics or the newest Microsoft Fabric.