Look up to Hash File

Post questions here relative to DataStage Server Edition for such areas as Server job design, DS Basic, Routines, Job Sequences, etc.

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Optico
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Post by Optico »

Hi.

As far as I know all lookups are done as '=' (equal to).

Use a constraint to only pass the data where your source file date is within the start/end date criteria.



B. Sorensen,
Optico IT ApS
WoMaWil
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Post by WoMaWil »

No not via Hash,

but via you may use routine and/or other tricks, depending on how much it is.

Let us know more details.

Wolfgang Huerter
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kcbland
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Post by kcbland »

I posted one technique with supporting functions to build hash lookups that work on equi-join or "=" but have nested all the rows required. Search for the following topic:

"Using hash files instead of UV tables for multirow"

Kenneth Bland
ray.wurlod
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Post by ray.wurlod »

For some reason there are two threads with this topic. I responded to the other one, with why the Hashed File is not appropriate for a BETWEEN join. Admin, can you merge these when populating the archive?

Ray Wurlod
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