RTRIM

Syntax

Description of the illustration rtrim.gif

Purpose

RTRIM removes from the right end of char all of the characters that appear in set. This function is useful for formatting the output of a query.

If you do not specify set, then it defaults to a single blank. If char is a character literal, then you must enclose it in single quotation marks. RTRIM works similarly to LTRIM.

Both char and set can be any of the data types CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB. The string returned is of VARCHAR2 data type if char is a character data type, NVARCHAR2 if expr1 is a national character data type, and a LOB if char is a LOB data type.

Examples

The following example trims all the right-most occurrences of less than sign (<), greater than sign (>) , and equal sign (=) from a string:

SELECT RTRIM('<=====>BROWNING<=====>', '<>=') "RTRIM Example"
  FROM DUAL;

RTRIM Example
---------------
<=====>BROWNING