Sum

Sum(Number a[ ])
Sum(Integer a[ ])
Sum(Currency a[ ])
Sum(DBField field)
Sum(DBField, String groupby)

This function computes the sum of all the values referred to by the argument.

Parameters

a - A Number, Integer or Currency array.
field - Values of DBField or formula field.
groupby - A constant string which indicates the DBField, formula or parameter grouped by.

Return value

The returned value type is dependent on the parameter. It can be Number, Integer or Currency.

Examples

Number x = Sum([1, 2, 3.0, 4.5, 45, 67])
Number x[6] = [1, 2, 3.0, 4.5, 45, 67]; Number y = Sum(x)
Currency x = Sum([$1, $2, $3.0, $4.5, $45, $67])
Currency x[] = [$1, $2, $3.0, $4.5, $45, $67]; Currency y = Sum(x)
Number x = Sum(@dbfield)
Number x = Sum(@formula)
Number x = Sum(@dbfield, @dbfield_groupby)
Number x = Sum(@dbfield, @formula_groupby)
Number x = Sum(@dbfield, @parameter)
Currency x = Sum(@dbfield)
Currency x = Sum(@formula)
Currency x = Sum(@formula, @dbfield_groupby)
Currency x = Sum(@formula, @formula_groupby)
Currency x = Sum(@formula, @parameter)

Note: If a field is assigned to a variable, for example x, the variable x will lose the characteristic of representing a group of values. So, the following formula will be treated as incorrect.

Number x = @dbfield; Number y = Sum( x); // system will prompt you that there is no such kind of function.