NLS_UPPER

Syntax

Description of the illustration nls_upper.eps

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.

See Also:

Appendix C in Oracle Database Globalization Support Guide for the collation determination rules for NLS_UPPER, and for the collation derivation rules, which define the collation assigned to the character return value of this 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