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Oracle® Database SQL Language Reference
11g Release 2 (11.2)

Part Number E17118-04
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NLS_UPPER

Syntax

Description of nls_upper.gif follows
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 data types CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB. The string returned is of VARCHAR2 data type if char is a character data type and a LOB if char is a LOB data type. 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

See Also:

NLS_INITCAP