COMPOSE

Syntax

compose::=

Text description of compose

Purpose

COMPOSE takes as its argument a string in any datatype, and returns a unicode string in its fully normalized form in the same character set as the input. string can be any of the datatypes CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB. For example, an "o" codepoint qualified by an umlaut codepoint will be returned as the o-umlaut codepoint.

See Also: Oracle9i Database Concepts for information on unicode character sets and character semantics

Example

SELECT COMPOSE ( 'o' || UNISTR('\0308') ) FROM DUAL; 

CO 
-- 
ö