August 4, 2009 at 3:52 am
Hi,
Hope somebody can help or point me in the right direction.
I would like to know if it is possible to map destination columns dynamically.
Let me explain:
I have several files to upload with different formats
e.g.
abc.xls as 5 columns (version 1 of the import file)
col1,col2,col3,col4,col5
01/07/2009,Product 1,123.00,12.00,135.00
02/07/2009,Product 2,125.00,13.00,138.00
abc1.xls has 7 columns (version 2 of the import file)
col1,col2,col3,col4,col5,col6,col7
01/07/2009,Product 1,123.00,12.00,1.00,2.00,135.00
02/07/2009,Product 2,125.00,13.00,1.00,2.00,138.00
The destination for both files go to the same table (Table 1) with columns:
Date
Description
Amount
Tax
TotalAmount
RateAmount1
RateAmount2
I have a table that maps the columns with the 2 versions of these files
FileOldHeader IndexNew Header
abc.xlscol11Date
abc.xlscol22Description
abc.xlscol33Amount
abc.xlscol44Tax
abc.xlscol55TotalAmount
abc1.xlscol11Date
abc1.xlscol22Description
abc1.xlscol33Amount
abc1.xlscol44Tax
abc1.xlscol55RateAmount1
abc1.xlscol66RateAmount2
abc1.xlscol77TotalAmount
How can I map the input columns to the output columns
e.g.
col5 destination column is TotalAmount (abc.xls)
col5 destination column is RateAmount1 (abc1.xls)
I know how to get these values, but how do you map them to the destination table?
Is this possible or is it possible to map using the Index column?
Hope this is clear?
Thanks
SSIS Newbie
August 4, 2009 at 9:16 am
If you can get those values, then probably the easiest thing to do is to create two calculated columns: one for Total Amount and one for Rate Amount. Populate whichever calculated column is appropriate and have the other be zero (or nothing).
Drew
J. Drew Allen
Business Intelligence Analyst
Philadelphia, PA
August 4, 2009 at 10:14 am
Another approach would be to use a for-each loop over the files. Within this you have a dataflow, and within the dataflow you have an excel connection (source) and sql connection (destination). Set the Excel connection to be an expression, also use an expression to set the query from the excel. I'd prob look to alias the column names in that query to the true names in the destination. Doing this, you should get an automapping of columns to the target, by name.
Steve.
August 5, 2009 at 2:43 am
Thanks Steve.
Can the mapping of the columns (alias) be done dynamically via a script or Transformation?
Reason been is that I would be processing lots of different files with different formats.
E.g. abc.xls has 5 col going to SQL table (A), abc1.xls has 7 col going to SQL table (A), bbb.xls has 3 col going to SQL table (B) etc.
I can get the destination into a variable, can I get the alias column names into a variables?
Thanks again.
August 5, 2009 at 8:04 am
Do you have *any* column names? ie is Col1 a cloumn name that exists in the data, or more a way t convey to use it's the first column?
If you do have column names, then you can use an expression to set the query against the excel spreadsheet, and of course, an expression can be a concatenation of variable values.
Steve.
October 12, 2011 at 5:35 am
Hi,
Could you send me the files and let me try...
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