Connection function ( ) { if ( conn == null ) { conn = createConnection ( ) ; } return conn ; }
cria e retorna uma conexao com o banco de dados concode_field_sep Statement stmt concode_elem_sep Connection conn concode_elem_sep PreparedStatement psInsert concode_elem_sep String dbURL concode_elem_sep String dbName concode_field_sep void createTable concode_elem_sep String CheckExistence concode_elem_sep Connection createConnection concode_elem_sep void insertService concode_elem_sep boolean check concode_elem_sep void insertData concode_elem_sep void deleteTable concode_elem_sep String runQuery concode_elem_sep void shutdown