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Oracle® Database SQL Reference
10g Release 1 (10.1)

Part Number B10759-01
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UPPER


Syntax

upper::=
Description of upper.gif follows
Description of the illustration upper.gif


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