COUNT
Applies to: ✅ Data 360 SQL ✅ Tableau Hyper API
Counts the number of input rows or non-null values.
*: Counts all rows, including rows with NULL values.<expression>: Counts rows where the expression is not NULL.
DISTINCT: Counts only distinct non-null values.
Returns a bigint representing the count.
- Unlike other aggregates,
countreturns 0 (not NULL) for empty sets.
Count the total number of rows.
Count the rows with non-null values.
Count the unique values.
Count the rows per group.