以下创建DBLINK的写法中，哪些是错误的？ A、CREATE DATABASE LINK to_10205_link CONNECT TO demo IDENTIFIED BY demo USING 'to_10205'; B、CREATE DATABASE LINK to_10205_link CONNECT TO CURRENT_USER USING 'to_10205'; C、CREATE SHARED PUBLIC DATABASE LINK TO_10205_link CONNECT TO demo IDENTIFIED BY demo USING 'to_10205'; 【正确答案】 D、CREATE DATABASE LINK to_10205_link USING 'to_10205'; 【答案解析】创建共享数据库链接时，需要指定“AUTHENTICATED BY schema_name IDENTIFIED BY password”子句。