'도메인함수

DLookup - Get the value of a field From a particular record - similar to Microsoft VLookup Function

DMin - retrieve the minimum value In a specified Set of records

DMax - obtain the maximum values In a specified Set of records

DAvg - calculate the average of a Set of values In a Set of records

DFirst - Get a random value For a specific field In a table.

DLast - Get a random record For a particular field In a table. I don't have a clue what the difference is Between DFirst And DLast.

DCount - determine the count of a Set of records

DSum - calculate the sum of a Set of values In a specified Set of records

DStDev & DStDevP - estimate the standard deviation across a Set of values In a specified Set of records; DStDevP - For population estimates And DStDev For sample estimates.

DVar & DvarP - estimates the variance For a sample (DVar) or For a population (DvarP

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