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Are You an Expert in Data Warehousing and OLAP?

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Are You an Expert in Data Warehousing and OLAP?

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Questions and Answers

What is the main goal of OLAP in the data processing mechanism described in the text?

To capture, store, and process data from transactions in real time

To combine data from multiple sources, transform and upload it to the data warehouse

To store data in raw form coming in from source systems

To analyze aggregated historical data from OLTP using queries (correct)

What is the difference between Daily Full and Daily Incremental tables in Daraz's data warehousing universe?

Daily Full tables store data of a single day on a single partition, while Daily Incremental tables store data since inception on a single data partition.

Daily Full tables store data since inception on a single data partition, while Daily Incremental tables store data of a single day on a single partition. (correct)

Daily Full tables store data of a single day on multiple partitions, while Daily Incremental tables store data since inception on a single data partition.

Daily Full tables store data of multiple days on a single partition, while Daily Incremental tables store data of a single day on a single partition.