In contrast, what characteristics characterize analytical processing?

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Mitu9900
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In contrast, what characteristics characterize analytical processing?

Post by Mitu9900 »

It is not individual data sets that are processed, but rather aggregation and grouping of large amounts of data.
Queries are more complex than in transaction processing, and although many records are processed, typically only a few columns of the records are used in a single query.

The data is typically not in third normal form, but a so-called star or snowflake schema is used.
Instead of just the belize telegram screening current status of a business process, its entire history is stored.
In most cases, data from multiple source systems – often transaction processing systems – is merged.
To merge the data, so-called ETL (extraction/transformation/loading) processing is necessary.

Analytical systems aim to provide a consistent view of all the data from the different source systems (single point of truth). Typical systems for analytical processing are data warehouses and data lakes. To emphasize the contrast to OLTP, it is often referred to as online analytical processing (OLAP).
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