Showing posts with label flow. Show all posts
Showing posts with label flow. Show all posts

Monday, March 19, 2012

Mysteriously dropped rows using Data Flow Task

I'm using the Data Flow Task to load data from a flat file into a SQL table and I'm missing rows. And there doesn't see to be any consistent or obvious reason why.

When I use the Bulk Insert Task I import the correct number of rows from the flat file. But when I use the Data Flow task and use a Flat File Source connected to a OLE DB Destination I get about 1/3 the right number of rows. So looking at these loaded tables at the same time I notice that the Data Flow Task method just skips rows sometimes.

Why does this happen?

Try to enable error output and redirect the error output to a different table and see if any rows are sent there.

Hope this helps,

Ovidiu Burlacu

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just for people looking around; this issue got addres in other post: http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=884012&SiteID=1

Rafael Salas