错误[hy000][mysql][odbc5.3（a）driver][mysqlid-5.7.11]列“images”不能为空(这是我的问题）
这是我插入按钮的代码

OdbcConnection connection = new OdbcConnection("dsn=dsn_pos");
        MessageBox.Show(this.imagePath.Text);
        FileStream filestreme = new FileStream(imagePath.Text,System.IO.FileMode.Open,System.IO.FileAccess.Read);
        byte[] image = new byte[filestreme.Length];
        filestreme.Read(image, 0, Convert.ToInt32(filestreme.Length));
        filestreme.Close();

        connection.Open();
        string query = "INSERT INTO item_inventory (Images) VALUES (?)";
        OdbcCommand cmd = new OdbcCommand(query, connection);
        OdbcParameter prm = new OdbcParameter("@IMG",OdbcType.Binary,image.Length,ParameterDirection.Input,false,0,0,null,DataRowVersion.Current,image);
        cmd.Parameters.Add(prm);
        cmd.ExecuteNonQuery();
        connection.Close();

这是我的加载按钮代码

OpenFileDialog dialog = new OpenFileDialog();
        dialog.Filter = "png files(*.png)|*.png|jpg files(*.jpg)|*.jpg|All files(*.*)|*.*";
        if (dialog.ShowDialog() == DialogResult.OK)
        {
            string picPath = dialog.FileName.ToString();
            imagePath.Text = picPath;
            pictureBox2.ImageLocation = picPath;
        }