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Answer Posted / shaikyesvee
SumIndex fields are associated with the keys of the table. You can relate multiple SumIndex fields with a particular key. Each key can have at most 20 SumIndexFields.
SumIndexFields enable fast calculation of numeric columns in tables, even in tables with thousands of records. This is because SumIndexFields are maintained when the database record is updated.
SumIndex is a Indexing feature, to enable fast calculations, and the fields are not ment to be accessed, unlike the FlowFields.
FlowFields are virtual fields in the Table. It is not a permanent part of the table data. It is used to calculate values from another or same table based on CalcFormula specified for the field. The information in the FlowFields exists only at run time.
To update a FlowField you can you CALCFIELDS function as: record.CALCFIELDS("FieldName")
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