Tech Tip: Counting the amount of Distinct Values of a Field
PRODUCT: 4D | VERSION: 15 R4 | PLATFORM: Mac & Win
Published On: July 19, 2016
As of v15 R4 a new parameter has been added to the DISTINCT VALUES command. This new third and optional parameter uses a Numeric type array and returns the number of times a distinct value is found corresponding to the results returned in the array of the second parameter.
For example:
The following:
ALL RECORDS([Table]) ARRAY TEXT($arrText;0) ARRAY LONGINT($arrLong;0) DISTINCT VALUES([Table]Field;$arrText;$arrLong) TRACE |
will return:
This is useful for statisical analysis of data and it is also posible to reorder the results in order of most frequent to least using the SORT ARRAY command.