NLS_UPPER

Syntax

nls_upper::=

Text description of nls_upper

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 and 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