답글형 게시판 만들기 설계 SQL 구문 drop table board; create table repboard( board_no number,--게시글번호 parent_no number,--부모글번호:원글인경우 0 , 답글인경우 부모글 번호값 board_id varchar2(10), board_title varchar2(100), board_content varchar2(1000), board_viewcount number(5), board_dt date ); alter table repboard add constraint board_no_pk primary key (board_no); alter table repboard add constraint board_id_fk foreign key(board_..
