create table board(
		bNum int NOT NULL Primary key,
        bWriter varchar(20) NOT NULL, 
        bPwd varchar(20) NOT NULL,
        bSub varchar(50) NOT NULL, 
        bContent varchar(2000) NOT NULL, 
        bHit int NOT NULL,
        bDate date NOT NULL
	);
    
drop table board;
 select * from board;
 delete from board where bNum=8;
