更新多行插入SQL表

问题描述

假设有数据的String [N] [3] myData的。

Suppose there is a fully populated array of data String[n][3] myData.

我想这样做：

for (String[] row : myData)
{
   SQL = "update mytable set col3 = row[2]
   where col1 = row[0] and col2=row[1];"
}

显然，我已经留下了很多，但我想前preSS的想法尽量简洁。

Obviously I've left a lot out, but I want to express the idea as succinctly as possible.

是否有一个DB命令这样做的一个简单的方法？
怎么样不是那么简单的方法是什么？

Is there a simple way of doing this in a single DB command?How about a not so simple way?

编辑：
数据不是从其他表来（这是一个网页表单提交 - 选择题考试）

眼看因为应用程序是面向网络，它一定是注射证明。参数化查询是我的$ P $要去pferred方式。

我使用的MS-SQL Server 2005的

EDITS:Data is not coming from another table (it's a web form submission - Multiple Choice exam)
Seeing as the app is web facing, It's got to be injection proof. Parameterized Queries are my preferred way of going.
I'm using MS-SQL Server 2005

编辑：关闭，并重新要求为http://stackoverflow.com/questions/184471/multiple-db-updates

Closing, and re-asking as http://stackoverflow.com/questions/184471/multiple-db-updates

编辑：重开，因为这似乎是一个普遍的问题。

Re-opened, as this appears to be a popular question

推荐答案

如果您正在使用SQL Server，你可以使用SqlBulkCopy的。你首先必须把你的数据在一个DataTable，这将是pretty容易，因为你已经在一个字符串数组。

If you are using Sql Server you can use SqlBulkCopy. You would first have to put your data in a DataTable, which would be pretty easy since you already have it in a string array.

的

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