Transaction within a Transaction in C#

Posted by Rosco on Stack Overflow See other posts from Stack Overflow or by Rosco
Published on 2010-05-08T16:21:37Z Indexed on 2010/05/08 16:28 UTC
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I'm importing a flat file of invoices into a database using C#. I'm using the TransactionScope to roll back the entire operation if a problem is encountered.

It is a tricky input file, in that one row does not necessary equal one record. It also includes linked records. An invoice would have a header line, line items, and then a total line. Some of the invoices will need to be skipped, but I may not know it needs to be skipped until I reach the total line.

One strategy is to store the header, line items, and total line in memory, and save everything once the total line is reached. I'm pursuing that now.

However, I was wondering if it could be done a different way. Creating a "nested" transaction around the invoice, inserting the header row, and line items, then updating the invoice when the total line is reached. This "nested" transaction would roll back if it is determined the invoice needs to be skipped, but the overall transaction would continue.

Is this possible, practical, and how would you set this up?

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