UPPER

Syntax

upper::=

Text description of upper

Purpose

UPPER returns char, with all letters uppercase. char can be any of the datatypes CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB. The return value is the same datatype as char.

Examples

The following example returns a string in uppercase:

SELECT UPPER('Large') "Uppercase"
   FROM DUAL;

Upper
-----
LARGE