String Function (string_function)
A string function is a
function that supplies an alphanumeric value as a result.Syntax
<string_function> ::=
<string_spec> || <string_spec>
| <string_spec> & <string_spec>
| SUBSTR (<string_spec>,<expression>[,<expression>])
| LFILL (<string_spec>,<string_literal>[,<unsigned_integer>])
| RFILL (<string_spec>,<string_literal>[,<unsigned_integer>])
| LPAD (<string_spec>,<expression>,<string_literal>[,<unsigned_integer>])
| RPAD (<string_spec>,<expression>,<string_literal>[,<unsigned_integer>])
| TRIM (<string_spec>[,<string_spec>])
| LTRIM (<string_spec>[,<string_spec>])
| RTRIM (<string_spec>[,<string_spec>])
| EXPAND (<string_spec>,<unsigned_integer>)
| UPPER (<string_spec>)
| LOWER (<string_spec>)
| INITCAP (<string_spec>)
| REPLACE (<string_spec>,<string_spec>[,<string_spec>])
| TRANSLATE (<string_spec>,<string_spec>,<string_spec>)
| MAPCHAR (<string_spec>[,<unsigned_integer>][,<mapchar_set_name>])
| ALPHA (<string_spec>[,<unsigned_integer>])
| ASCII (<string_spec>)
| EBCDIC (<string_spec>)
| SOUNDEX (<string_spec>)
| GET_OBJECTNAME (<string_literal>)
| GET_OWNER (<string_literal>)