sum(*args)
Instance Public methods
Calculates the sum of values on a given column. The value is returned with
the same data type of the column, 0 if there's no row. See
calculate
for examples with options.
Person.sum(:age) # => 4562
Calculates the sum of values on a given column. The value is returned with
the same data type of the column, 0 if there's no row. See
calculate
for examples with options.
Person.sum(:age) # => 4562
Please login to continue.