pstmt = conn.prepareStatement("insert into article "

+ "(group_id, sequence_no, posting_date, read_count, reply_count, "

+ "writer_name, password, title, content) "

+ "values (?, ?, ?, 0, 0, ?, ?, ?, ?)");

pstmt.setInt(1, article.getGroupId());

pstmt.setString(2, article.getSequenceNumber());

pstmt.setTimestamp(3, new Timestamp(article.getPostingDate()

.getTime()));

pstmt.setString(4, article.getWriterName());

pstmt.setString(5, article.getPassword());

pstmt.setString(6, article.getTitle());

pstmt.setString(7, article.getContent());

int insertedCount = pstmt.executeUpdate();

위 소스를 실행하면

Caused by: java.sql.SQLException: Field 'reply_count' doesn't have a default value

오류가 발생합니다 

create table article (

article_id int not null auto_increment,

group_id int not null,

sequence_no char(16) not null,

posting_date datetime not null,

read_count int not null,

     reply_count int not null,

writer_name varchar(20) not null,

password varchar(10),

title varchar(100),

content text,

primary key (article_id),

index (sequence_no)

) default character set = euckr;

이게 테이블 만드는 쿼리문이구요

도저히 왜 이런 에러 메시지가 뜨는지 이해가 안갑니다

고수님들 도와주시면 감사하겠습니다