Benefits and Advantages of Columnar databases

Fundamentally, columnar database technology offers two primary benefits, increased speed and reduced storage requirements.

Columnar organization yields several storage-related benefits as well.

First, columnar databases make little or no use of user-defined indexes, so they require no additional storage other than that for the data.

Second, once the data is sorted and stored by column, the potential for compression increases dramatically.

Columnar databases not only can reduce the amount of storage required, but also in many cases can reduce the amount of memory required to process the data.

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