Showing posts with label components. Show all posts
Showing posts with label components. Show all posts

Monday, March 12, 2012

Lookup bug (altering caching breaks joins)

There is a bug in the Lookup components, that changing the caching mode breaks the join logic.This is even documented!
AFAICT, if you want the full join logic (where it matches on null values as well), you simply must use full caching everywhere, and install more memory as needed. :(
Does anyone know if this will be fixed with the next version, or in the release?

This is not a bug, as it is by design. If you would like to see a change in functionality please file a design change request in betaplace (or let me know if you can not and I will file one on your behalf.

Thanks,|||"Enabling memory caching breaks joins" seems to me like an annoying bug that is likely to bite newbies, even if they call it a "feature".
I cannot get into betaplace (I went around in circles with it for a while, trying to click on invisible buttons, and posting to the Microsoft SSIS beta newsgroups asking for help, and I never got any success).
If you could post it as a bug (or, um, "feature" that is likely to cause grief to users), that would be great.

Lookup and OLEDB Command components programming

I need some help on SSIS programming. Can anybody give me a short example or tutorial how to write a code, which will show me use of "Lookup" and "OLEDB Command" components?Here's an example of using a Lookup (amongst other things): http://www.sqlis.com/default.aspx?311

The SCD Wizard produces a data-flow with an OLE DB Command in it so you could look at that!

-Jamie|||And how can I get a code from SCD Wizard?|||

Erch wrote:

And how can I get a code from SCD Wizard?

You can't. The SCD Wizard produces components, not code.

So am I correct in saying that you want to build a package programatically that contains a data-flow containing a LOOKUP and an OLE DB COMMAND? There isn't much resources around yet that shows how to do this - BOL is definately the best place to go.

-Jamie