RTRIM(x,y) is a string function that removes the blanks (code attribute ASCII, UNICODE) from the end of the character string x and then all of the characters specified in the character string y (string specification).
The result of RTRIM(x,y), therefore, ends with the last character that was not specified in y. Only expressions that produce an alphanumeric value are permitted as string specifications.
x, y |
Result of the RTRIM(x,y) function |
---|---|
RTRIM(x) |
Spaces only (code attribute ASCII, UNICODE) are removed from x. |
x is a NULL value |
NULL value |
SQL Tutorial, Changing Character Strings