2

大家好，我希望有人能帮助我，我正在学习 c# 到目前为止，我已经编写了几个有用的程序，但是现在我被一个特定的问题难住了，我已经用谷歌搜索了我认为我需要的查询。这是我的代码

        try
        {
            con.Open();
            cmd = new SqlCommand("SELECT * from LMNormal", con);
            cmd.CommandText = ("INSERT INTO LMNormal (upc,cert_code,description,cost,normal_price,pricemethod,groupprice,quantity,special_price,specialcost,specialpricemethod,specialgroupprice,specialquantity,start_date,end_date,pack,size,unitofmeasure) SELECT (upc,cert_code,description,cost,normal_price,pricemethod,groupprice,quantity,special_price,specialcost,specialpricemethod,specialgroupprice,specialquantity,start_date,end_date,pack,size,unitofmeasure) from products where (modified >= @now) and (advertised=@false)");
            cmd.Parameters.AddWithValue("@now", now);
            cmd.Parameters.AddWithValue("@false", selected);
            cmd.Connection = con;
            cmd.ExecuteNonQuery();
            timer1.Start();
            con.Close();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);

        }

当程序执行时，它会捕获我的错误并在''附近说不正确的语法，我很难弄清楚这个逗号在哪里。

感谢您的任何意见

4

3 回答 3

9

您唯一需要做的就是删除在您的选择语句中包含列的括号，例如

INSERT INTO LMNormal (upc, cert_code, description, ..., unitofmeasure)
SELECT upc, cert_code, description, ..., unitofmeasure
FROM   products 
WHERE  (modified >= @now) and (advertised = @false)
于 2013-03-16T16:42:15.427 回答
1

从您的选择查询中删除“（”和“）”


cmd.CommandText = ("INSERT INTO LMNormal (upc,cert_code,description,cost,normal_price,pricemethod,groupprice,quantity,special_price,specialcost,specialpricemethod,specialgroupprice,specialquantity,start_date,end_date,pack,size,unitofmeasure)
SELECT upc,cert_code,description,cost,normal_price,pricemethod,groupprice,quantity,special_price,specialcost,specialpricemethod,specialgroupprice,specialquantity,start_date,end_date,pack,size,unitofmeasure from products where modified >= @now and advertised=@false");

于 2013-03-16T16:53:06.943 回答
-1

我相信你失踪了cmd.CommandType = CommandType.Text。

于 2013-03-16T16:43:33.103 回答