ASCII returns the decimal representation in the database character set of the first character of
char can be of data type
NVARCHAR2. The value returned is of data type
NUMBER. If your database character set is 7-bit ASCII, then this function returns an ASCII value. If your database character set is EBCDIC Code, then this function returns an EBCDIC value. There is no corresponding EBCDIC character function.
This function does not support
CLOB data directly. However,
CLOBs can be passed in as arguments through implicit data conversion.
See Also:"Data Type Comparison Rules" for more information
The following example returns employees whose last names begin with the letter L, whose ASCII equivalent is 76:
SELECT last_name FROM employees WHERE ASCII(SUBSTR(last_name, 1, 1)) = 76 ORDER BY last_name; LAST_NAME ------------------------- Ladwig Landry Lee Livingston Lorentz