Questions tagged [sparse-column]

Sparse columns have optimized storage for null values at the cost of more overhead to retrieve non-null values. A table with sparse columns may have an extra column-set column containing an untyped XML representation of all the sparse column data in each row.

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Quickest way to apply SPARSE on huge existing tables

I have a bunch (> 40) of columns in a huge table (> 27 m records) which I am attempting to set as SPARSE. Each column takes up to 40 minutes to be altered. Is there a way to do this more quickly? Is ...