是否有一种简单的方法，可以使用SSIS将多个Excel文件中的数据导入SQL，包括文件名？

Question

I need to import salary data from multiple excel files where filename of each file is a date.

I used SSIS and with success followed typical tutorials for importing multiple excel files. The thing is none of them show simple method how to add one extra column (with the name of the file) to the result. There are some tutorials with huge code scripts, that are too complicated for me.

What I did was to add 'Derived column' module between typical 'excel source' and 'OLE BD destination' where I added a new column 'date' with expression @[User::FileName] - a variable that is used for 'foreach loop container' but as a result I received corectly combined data from all files but the extra column contains the same data - the filename of the first imported file.

I wonder if there is any simple to make the variable I used to change with every loop ? So, as a result, I receive combined data plus one extra column containing the corresponding date, which is the name of each file. Many Thanks

Answer 1

If you are using a Foreach File Enumerator , select "Name only" in the Collection pane as in the image below (I'm assuming that "Name only" will give you the date that you are looking for).

This allows you to map this into a variable on each iteration. To do this, navigate to the Variable Mappings pane, and select the variable you want to use in your Data Flow Task , with 0 as the Index.

You can then add this variable as a Derived Column , and it will give you the name of the file you are importing.