create table tablename(id number, title varchar2(20), intro varchar2(200), time timestamp)
PreparedStatement stmt = conn.prepareStatement(sql);
stmt.execute();
sql="create table tablename(id varchar2(50),title varchar2(50),intro varchar2(50),time date)";
tablename(表名) 可以根据你自己的要求修改
create table tablename(id varchar2(255),title varchar2(255),intro varchar2(255),time date)