Informatica : Sequence generate [closed]

问题

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Closed 7 years ago.

Without using sequence generator How can we generate sequences in informatica mapping ?

Thanks

回答1:

Well, like others said, I would have preferred to get a specific question on why you are trying to avoid sequence generator. Having said that, if i open myself to "the idea of an alternate" to sequence generator, some things do come to mind

1. If you have a relatively simplistic mapping, you can embed a oracle/db sequence.nextval call hidden in the source qualifier.

2. you can embed db/sequence call in a sql tranformation too. But know that it would be anti-performant.

3. you will be able to achieve a sequence generator behaviour using a persistent variable too, but there are limitations and downsides.

So, again, depending upon what you are trying to do and where you are getting stuck, you might want to repost/edit your question.. and perhaps get a more direct answer.

来源：https://stackoverflow.com/questions/13350911/informatica-sequence-generate