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Bear in mind that a stored calculation is not guaranteed to be recently calculated when used in a find, a sort definition, or as the right-hand key in a relation, because its value is computed in memory and the database value only represents the most recent execution of the calculation. |
Calculation As
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a Record-Level Variable
In general, a calculation is a ready-only data provider, its value being generated each time it is read. However, in one exception a calculation may be used to cache data for a record, thus becoming a read/write in-memory data provider. This is done by creating a calculation which has no return statement. Such a calculation will be treated a little differently. It can actually store a value in memory for an individual record.
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