char, with the first letter of each word in uppercase, all other letters in lowercase. Words are delimited by white space or characters that are not alphanumeric.
'nlsparam' can be any of the data types
NVARCHAR2. The string returned is of
VARCHAR2 data type and is in the same character set as
The value of
'nlsparam' can have this form:
'NLS_SORT = sort'
sort is a named collation. The collation handles special linguistic requirements for case conversions. These requirements can result in a return value of a different length than the
char. If you omit
'nlsparam', then this function uses the determined collation of the function.
This function does not support
CLOB data directly. However,
CLOBs can be passed in as arguments through implicit data conversion.
"Data Type Comparison Rules" for more information.
Appendix C in Oracle Database Globalization Support Guide for the collation determination rules for
NLS_INITCAP, and for the collation derivation rules, which define the collation assigned to the character return value of this function
The following examples show how the linguistic sort sequence results in a different return value from the function:
SELECT NLS_INITCAP('ijsland') "InitCap" FROM DUAL; InitCap ------- Ijsland SELECT NLS_INITCAP('ijsland', 'NLS_SORT = XDutch') "InitCap" FROM DUAL; InitCap ------- IJsland
Oracle Database Globalization Support Guide for information on collations