row-by-row calculations

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“Using queries, simple calculations can be made using data on a single row at a time. Standard arithmetical operations (+, -, *, /) are supported. These calculations are performed before any aggregation operations. A few newer systems include support for Lag and Lead operators that can use data from rows above or below the current row.”

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By |February 1st, 2019|Comments Off on row-by-row calculations