count

count — aggregate function to return the count of rows that match the query's predicate.

SYNOPSIS

count()

count(expr)

DESCRIPTION

The count() function with no arguments returns the number of rows that meet the query predicate conditions. When used with an optional expression argument, count() includes those rows for which the expression evaluates to a non-null value.

SEE ALSO

This LiveView aggregate function is based on the count aggregate function in the StreamBase expression language.