Use SSIS variables as column in sql table

I want to use the value of one of my SSIS variables as a column in a table I'm importing.  Basically, I have 36 files that I'm importing from Excel into a SQL table.  I want one of the columns in my sql table to have the filename in it.  Can someone help me out with this?
Jim
JLEmletAsked:
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Megan BrooksSQL Server ConsultantCommented:
Two ways to do it would be using a derived column transformation or a script task. Either way, the transformation must be inserted between the data source and destination.

Derived column transformations are described in http://msdn2.microsoft.com/en-us/library/ms137630.aspx . Values are taken from expressions, which can include variables. In this case the expression would consist only of the variable, and is easily created in the expression editor.

I have usually used script tasks instead of derived column transformations because I usually need to include changing derived values such as identity values that start with a value taken from a variable and then increment for each row.

New columns are added to script tasks on the Inputs and Outputs tab, as I recall (I don't have access to BIDS at the moment). The 'inputs' portion lists the inputs to the script task, while 'outputs' lists columns outputs added by the task. Once you have added the column, you will need to add the appropriate variable name to the read-only variables list on the Script tab. Then within the script you can access the value through the Dts.Variables collection and assign it to the appropriate column. Some information can be found at http://msdn2.microsoft.com/en-us/library/ms136127.aspx .

If all you need to do is add a value taken from a column, the derived column transformation shoud be easier to add. Again, this is all from memory but I will be back in a place where I can run BIDS in the morning, if you need more information.
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JLEmletAuthor Commented:
thanks, that did the trick.
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