NLS_UPPER

Syntax

Description of the illustration nls_upper.gif

Purpose

NLS_UPPER returns char, with all letters uppercase.

Both char and 'nlsparam' can be any of the datatypes CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB. The string returned is of VARCHAR2 datatype if char is a character datatype and a LOB if char is a LOB datatype. The return string is in the same character set as char.

The 'nlsparam' can have the same form and serve the same purpose as in the NLS_INITCAP function.

Examples

The following example returns a string with all the letters converted to uppercase:

SELECT NLS_UPPER ('große') "Uppercase"
     FROM DUAL;

Upper
-----
GROßE

SELECT NLS_UPPER ('große', 'NLS_SORT = XGerman') "Uppercase" 
   FROM DUAL;

Upperc
------
GROSSE