SPACE
returns the blank-delimited words in string with
n pad characters between each word. If you
specify n, it must be a positive whole number or zero. If it is
0, all blanks are removed. Leading and trailing blanks are always removed. The
default for n is 1, and the default
pad character is a blank.
Here are some examples:
SPACE('abc def ') -> 'abc def'
SPACE(' abc def',3) -> 'abc def'
SPACE('abc def ',1) -> 'abc def'
SPACE('abc def ',0) -> 'abcdef'
SPACE('abc def ',2,'+') -> 'abc++def'