SSIS 将平面文件导入 SQL,第一行作为标题,最后一行作为总数 [英] SSIS import a Flat File to SQL with the first row as header and last row as a total
问题描述
我收到了必须导入到 SQL 表的文本文件,我必须使用 SSIS,因为我每天都会收到平面文件,第一行是 Customer_ID,然后是发票详细信息,然后是发票总额.
I receive Text File that I have to Import to a SQL Table, I have to come with a SSIS because I will received the Flat File every Day , with the First Row as the Customer_ID, then come the invoice details and then the Total of the invoice.
示例:
30303
0000109291700080190432737000005产品名称
0000109291700080190432737000005Name of the product
0000210291700080190432737000010产品名称
0000210291700080190432737000010Name of the product
0000309291700080190432737000000产品名称
0000309291700080190432737000000Name of the product
003 000145
让我解释一下:
第一个 30303 是客户编号
First 30303 is the Customer #
其他行发票详细信息
00001-> ROWID 092917-> 日期 000801904327->PROD 370->Trans 00010 -> 金额
产品名称
00001-> ROWID 092917-> DATE 000801904327->PROD 370->Trans 00010 -> AMOUNT
Name of the product
最后一行
003==>总行数 000145==>发票总数
003==>Total rows 000145==>Total of Invoice
有什么线索吗?
推荐答案
我会使用脚本组件作为数据流任务中的源.然后,您可以使用 C# 或 VB.net 以任何您希望的方式读取文件,例如,通过使用 System.IO.StreamReader
.您可以一次读取一行,将值存储在变量中以写入每一行(例如,客户编号)等.这对于复杂的文件非常灵活.
I would use a Script Component as a source in a Data Flow Task. You can then use C# or VB.net to read the file, e.g., by using System.IO.StreamReader
, in any way you wish. You can read a line at a time, store values in variables to write to every row (e.g., the customer number), etc. It's extremely flexible for complex files.
以下是基于您的数据的示例脚本 (C#):
Here is an example script (C#) based on your data:
public override void CreateNewOutputRows()
{
System.IO.StreamReader reader = null;
try
{
bool line1Read = false;
int customerNumber = 0;
reader = new System.IO.StreamReader(Variables.FilePath); // this refers to a package variable that contains the file path
while (!reader.EndOfStream)
{
string line = reader.ReadLine();
if (!line1Read)
{
customerNumber = Convert.ToInt32(line);
line1Read = true;
}
else if (!reader.EndOfStream)
{
Output0Buffer.AddRow();
Output0Buffer.CustomerNumber = customerNumber;
Output0Buffer.RowID = Convert.ToInt32(line.Substring(0, 5));
Output0Buffer.Date = DateTime.ParseExact(line.Substring(5, 6), "MMddyy", System.Globalization.CultureInfo.CurrentCulture);
Output0Buffer.Prod = line.Substring(11, 12);
Output0Buffer.Trans = Convert.ToInt32(line.Substring(23, 3));
Output0Buffer.Amount = Convert.ToInt32(line.Substring(26, 5));
Output0Buffer.ProductName = line.Substring(31);
}
}
}
catch
{
if (reader != null)
{
reader.Close();
reader.Dispose();
}
throw;
}
}
脚本组件'Output 0'中的列配置如下:
The columns in 'Output 0' of the Script Component are configured as follows:
Name DataType Length
==== ======== ======
CustomerNumber four-byte signed integer [DT_I4]
RowID four-byte signed integer [DT_I4]
Date database date [DT_DBDATE]
Prod string [DT_STR] 12
Trans four-byte signed integer [DT_I4]
Amount four-byte signed integer [DT_I4]
ProductName string [DT_STR] 255
要实现这一点:
- 创建一个名为FilePath"的字符串变量,其中包含您的文件路径以供脚本引用.
- 创建数据流任务.
- 向数据流任务添加脚本组件 - 系统会询问您应该是什么类型,选择源".
- 右键单击脚本组件,然后单击编辑".
- 在脚本"窗格中,将FilePath"变量添加到ReadOnlyVariables"部分.
- 在输入和输出"窗格中,展开输出 0"并按照上表将列添加到输出列"部分.
- 在脚本"窗格中,单击编辑脚本",然后将我的代码粘贴到
public override void CreateNewOutputRows()
方法上(替换它). - 您的脚本组件源现已配置完毕,您将能够像使用任何其他数据源组件一样使用它.要将这些数据写入 SQL Server 表,请将 OLEDB 目标添加到数据流任务,并将脚本组件链接到该目标,适当地配置列.
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