The REVERSE Function
The REVERSE function returns a character string whose length and characters are exactly the same as argument-1, except that
the characters are in reverse order.
The type of this function depends on the argument type as follows:
| Argument Type | Function Type |
|---|---|
| Alphabetic | Alphanumeric |
| Alphanumeric | Alphanumeric |
| National | National |
General Format
Arguments
- Argument-1 must be class alphabetic, alphanumeric
or national
and must be at least one character in length.
- UTF-16 characters that are surrogate pairs are treated as one character.
Returned Values
- If argument-1 is a character string of length n, the returned value is a character string of length n such that for 1 <j < n, the character in position j of the returned value is the character from position n-j+1 of argument-1.