char, with all letters lowercase.
char can be any of the data types
NCLOB. The return value is the same data type as
char. The database sets the case of the characters based on the binary mapping defined for the underlying character set. For linguistic-sensitive lowercase, refer to NLS_LOWER.
The following example returns a string in lowercase:
SELECT LOWER('MR. SCOTT MCMILLAN') "Lowercase" FROM DUAL; Lowercase -------------------- mr. scott mcmillan