Multiple Maps to load a Fact - Can it be consolidated?

We have a fact in which we do the following
- Insert from one set of source tables
- Insert from another set of source tables
- Update the inserted records with data from another table
At this time, we are planning to implement this as three different maps, and run these maps sequentially. Is there a better way of doing this, like doing it in one mapping?
Anand

That depends on your amount of data. An update is usually a bad option, because it is very slow. Bringing all etl-logic in one mapping will cause a complex mapping which also is not a good way.
An better idea would be to use "worktables" in which you write the intermediate results of the first to mappings. You should search for a way to transform that data while loading it from one table to the other, instead of updating it afterwards.
Tobias

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29/11/2014 20:27:03.841 com.apple.xpc.launchd[1]: (jp.buffalo.NASPower)
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On 29 November 2014 at 19:29, Apple Support Communities Updates <

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