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What are Sparse Columns?

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What are Sparse Columns?
posted Nov 28, 2014 by Roshan

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A sparse column is another tool used to reduce the amount of physical storage used in a database. They are the ordinary columns that have an optimized storage for null values. Sparse columns reduce the space requirements for null values at the cost of more overhead to retrieve no null values.

answer Nov 28, 2014 by Manikandan J
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