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Informatica - Using single target multiple times in single mapping

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Can you use a target table in multiple areas of a single mapping.

I have routers around the table, where I know some rows are ready, and currently they are all going to a final Union transformation.

I am wondering if it is possible to direct these from the router, directly into the multiple instance of a single target table.

If so, how does Informatica do the inserts?

Will it each time queue the outputs into the same target, or try and insert them concurrently when and as it stumbles upon them?

posted Jul 23, 2014 by Amit Sharma

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1 Answer

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Yes of course. We use multiple target instances (of same target) all the time. Informatica processes one row at a time, unless you have configured partitioning on the session. So, only one record gets inserted at a time.

Even if your router produces rows in multiple output groups, for a single input row (happens when the group conditions are overlapping or not mutually exclusive), then also, informatica will process the output groups sequentially. This is because, for un-partitioned sessions only one writer thread writes to all target instances. So all rows are processed sequentially by that writer thread.

answer Jul 24, 2014 by Shweta Singh
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I know this may seem like a basic task, but I cannot find any documentation regarding this.

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I have some files that I would like to consolidate into a single database table. The files have similar but different formats. The files look something like this:

•ColA : string
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•ColFirst : string
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enter image description here

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What would a mapping or workflow look like that could take advantage of something like this? I assume there'd be a flat file source that takes files from a folder. There would be something in the middle that uses this TableMappings table to map column names. Finally there would be a relational data object that represents my destination database table "TableDestination". I don't know how to put this together though.

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