例如:
table1 userid username
table2 bookid bookname
把上面两个表的内容插入到 下面这个表
table3 userid username bookid bookname
点击BUTTON 控件 把表插入
怎么解决
	    2006-12-13 21:51
  
	    2006-12-14 08:24
  
	    2006-12-14 20:14
          string connStr1 = "server=localhost;uid=sa; pwd=sa; database=book";
        SqlConnection myConnection1 = new SqlConnection(connStr1);
        string  borrowStr = "select count(*) from borrowinfo ";
   
        SqlCommand myCommand1 = new SqlCommand(borrowStr, myConnection1);
        myConnection1.Open();
        myCommand1.ExecuteNonQuery();
        myConnection1.Close();        
        borrowStr= borrowStr + 1;
        
        try
        {
            string insertStr = "insert  into borrowinfo values ('" + borrowStr + "', '" + Request["bookname"] + "',getdate(),getdate())";
            SqlCommand myCommand2 = new SqlCommand(insertStr, myConnection1);
            
                myConnection1.Open();
                myCommand2.ExecuteNonQuery();
                Label12.Text = "插入成功!";
        }
        catch
            {
                Label12.Text = "插入失败!";
            }  
为什么总是 插入失败啊  不能 这样用吗  
	    2006-12-14 23:41