RangeMaxString() returns the last value in the text sort order that it finds in the expression or field.
Syntax:
RangeMaxString(first_expr[, Expression])
Return data type: string
Arguments:
The argument of this function may contain inter-record functions which in themselves return a list of values.
- first_expr: The expression or field containing the data to be measured.
- Expression: Optional expressions or fields containing the range of data to be measured. Multiple additional expressions can be used.
Examples:
| Example | Result |
|---|---|
| RangeMaxString (1,2,4) |
Returns 4 |
|
RangeMaxString ('xyz','abc') |
Returns 'xyz' |
| RangeMaxString (5,'abc') | Returns 'abc' |
| RangeMaxString (null( )) |
Returns NULL |
Example: (using expression)
RangeMaxString (Above(MaxString(MyField),0,3))
Returns the last (in text sort order) of the three results of the MaxString(MyField) function evaluated on the current row and two rows above the current row.
| MyField | RangeMaxString(Above(MaxString(MyField),0,3)) |
|---|---|
| 10 |
10 |
| abc | abc |
| 8 | abc |
| def | def |
| xyz | xyz |
| 9 | xyz |
Data used in examples:
RangeTab:
LOAD * INLINE [
MyField
10
'abc'
8
'def'
'xyz'
9
] ;
