private void getCharacterStreamLongLastChar(int id, int length,
CharAlphabet alphabet)
throws IOException, SQLException {
// Get last char from the source stream.
Reader cmpReader = new LoopingAlphabetReader(length, alphabet);
cmpReader.skip(length -1);
char srcLastChar = (char)cmpReader.read();
assertTrue(cmpReader.read() == -1);
PreparedStatement ps = prepareStatement(
"select CLOBDATA from BLOBCLOB where ID=?");