>>-ASCII--(--expression--)------------------------------------->< |
The schema is SYSFUN.
Returns the ASCII code value of the leftmost character of the argument as an integer.
The argument can be of any built-in character string type up to a maximum of 1048576 bytes (1M). LONG VARCHAR is converted to CLOB for processing by the function.
The result of the function is always INTEGER.
The result can be null; if the argument is null, the result is the null value.