NLS_LOWER
returns char
, with all letters lowercase.
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.
The following statement returns the lowercase form of the character string 'NOKTASINDA
' using the XTurkish linguistic sort sequence. The Turkish uppercase I becoming a small, dotless i.
SELECT NLS_LOWER('NOKTASINDA', 'NLS_SORT = XTurkish') "Lowercase" FROM DUAL;