EXAMPLE - COUNT Functions

This section provides simple examples for how to use the COUNTA and COUNTDISTINCT functions. These functions include the following:

  • COUNTA - Count the number of values within a group that meet a specific condition. See COUNTA Function.
  • COUNTDISTINCT - Count the number of non-null values within a group that meet a specific condition. See COUNTDISTINCT Function.

Source:

In the following example, the seventh row is an empty string, and the eighth row is a null value.

rowIdVal
r001val1
r002val1
r003val1
r004val2
r005val2
r006val3
r007(empty)
r008(null)

Transform:

Apply a COUNTA function on the source column:

derive type:single value:COUNTA(Val) as:'fctnCounta'

Apply a COUNTDISTINCT function on the source:

derive type:single value:COUNTDISTINCT(Val) as:'fctnCountdistinct'

Results:

Below, both functions count the number of values in the column, with COUNTDISTINCT counting distinct values only. The empty value for r007 is counted by both functions.

rowIdValfctnCountdistinctfctnCounta
r001val147
r002val147
r003val147
r004val247
r005val247
r006val347
r007(empty)47
r008(null)47
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