用逗号分隔符将单个数据列拆分为SSIS中的多个列。

I have a table in SQL Server with 3 columns, one of which is a data column containing rows of concatenated columns delimited by commas. The first row is also the header row of the new table I want to create. so basically I want to turn this.

我在SQL Server中有一个包含3个列的表，其中一个是包含被逗号分隔的连接列的数据列。第一行也是我要创建的新表的标题行。所以基本上我想把这个转变。

Data      | ID | Source 
====================
a,b,c,d,e | 1  | a.csv

f,g,h,i,j | 2  | b.csv

into

成

a | b | c | d | e
=================
f | g | h | i | j

Using SSIS, The only way i could think of doing it is using a dump into a text file of the data column and then re-read it as an flat file source, but I'd rather avoid creating extra unnecessary files

使用SSIS，我能想到的唯一方法是将转储文件放入数据列的文本文件中，然后将其重新读取为一个平面文件源，但我宁愿避免创建额外的不必要的文件。

EDIT: Sorry Im using SSIS 2008

编辑:对不起，我使用SSIS 2008。

2 个解决方案

#1

What you can do is to read the file as is. And Split those values in a script task.

你所能做的就是阅读文件。并将这些值拆分为脚本任务。

So from source go to a script task. Then in the script task as input column, select the column containing those values (InputColumn1). Then specify the output columns (If I am right I see you have 5, so specify 5 (OutputColumn1 - 5)).

所以从源代码到脚本任务。然后在脚本任务中作为输入列，选择包含这些值的列(InputColumn1)。然后指定输出列(如果我是对的，我看到您有5个，所以指定5 (OutputColumn1 - 5))。

After that is done, go to the script itself (C#).

在完成此操作之后，请转到脚本本身(c#)。

Under:

下:

public override void Input0_ProcessInputRow(Input0Buffer Row)
{
}

Put the following code in there:

将下列代码放入其中:

var ColumnValue = Row.InputColumn1.Split(',');

Row.OutputColumn1 = ColumnValue[0];
Row.OutputColumn2 = ColumnValue[1];
Row.OutputColumn3 = ColumnValue[2];
Row.OutputColumn4 = ColumnValue[3];
Row.OutputColumn5 = ColumnValue[4];

After the script task all the columns from the Source as well as the OutputCoulmns1-5 will be available and you can do what you have to.

在脚本任务完成后，来自源的所有列以及OutputCoulmns1-5都将可用，您可以做您必须做的事情。

OUTPUT

输出

 Data      | ID | Source |OutputColumn1 |OutputColumn2|  etc. 3-5
 ================================================================
 a,b,c,d,e | 1  | a.csv  |  a           |  b

 f,g,h,i,j | 2  | b.csv  |  f           |  g

Please ask if something is not clear.

请问有不清楚的地方吗?

#2

You can use the Token expression to isolate strings delimited by well, delimiters.

您可以使用令牌表达式将字符串分隔开。

Use a derived column transformation and something like this:

使用派生的列转换，如下所示:

TOKEN([Name_of_your_Column], "," , 1)

令牌([Name_of_your_Column]、”、“1)

Should give you "a"

应该给你“”

TOKEN([Name_of_your_Column], "," , 2)

”,“令牌([Name_of_your_Column],2)

Should give you "b"

应该给你“b”

You can also set up a simple transformation script component. Use your "DATA" column as an input and add as many outputs as you need. Use the split method and you're set.

您还可以设置一个简单的转换脚本组件。使用“DATA”列作为输入，并添加所需的输出。使用split方法，然后设置。

string[] myNewColumns = inputColumn.split(",");

string[]myNewColumns = inputColumn.split(",");

#1