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

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)

Transformation:

Apply a COUNTA function on the source column:

Apply a COUNTDISTINCT function on the source:

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