7.00.02.01 - aa.approx.dcount() - Aster R

Teradata Aster® R User GuideUpdate 3

prodname
Aster R
vrm_release
7.00.02.01
created_date
December 2017
category
Programming Reference
User Guide
featnum
B700-1033-700K

Use the aa.approx.dcount() function to quickly estimate the number of distinct values in a column or combination of columns, while scanning the table only once.