Saturday, March 15, 2008

Rules and Guidelines for Dynamic Caches


  1. Keep the following guidelines in mind when you configure a Lookup transformation to use a dynamic cache:
    · The Lookup transformation must be a connected transformation.
    · You can use a persistent or a non-persistent cache.
    · If the dynamic cache is not persistent, the Informatica Server always rebuilds the cache from the database, even if you do not enable Recache from Database.
    · You cannot share the cache between a dynamic Lookup transformation and static Lookup transformation in the same target load order group.
    · You can only create an equality lookup condition. You cannot look up a range of data.
    · Associate each lookup port (that is not in the lookup condition) with an input port or a sequence ID.
    · Only connect lookup/output ports to the target table instead of input/output ports. When you do this, the Informatica Server writes the same values to the lookup cache and the target table, keeping them synchronized.
    · When you use a lookup SQL override, make sure you map the correct columns to the appropriate targets for lookup.
    · When you add a WHERE clause to the lookup SQL override, use a Filter transformation before the Lookup transformation. This ensures the Informatica Server only inserts rows in the dynamic cache and target table that match the WHERE clause. For details, see Using the WHERE Clause with a Dynamic Cache.
    · When you configure a reusable Lookup transformation to use a dynamic cache, you cannot edit the condition or disable the Dynamic Lookup Cache property in a mapping.
    · Use Update Strategy transformations after the Lookup transformation to flag the rows for insert or update for the target.
    · Use an Update Strategy transformation before the Lookup transformation to define some or all rows as update if you want to use the Update Else Insert property in the Lookup transformation.
    · Set the row type to Data Driven in the session properties.
    · Select Insert and Update as Update for the target table options in the session properties.

  2. Howdy,

    When ever I surf on web I come to this website[url=].[/url] is filled with quality info. Do you pay attention towards your health?. Let me present you with one fact here. Research shows that about 50% of all U.S. adults are either obese or overweight[url=].[/url] Therefore if you're one of these people, you're not alone. Infact many among us need to lose 10 to 20 lbs once in a while to get sexy and perfect six pack abs. Now next question is how you can achive quick weight loss? Quick weight loss can be achived with little effort. If you improve some of your daily diet habbits then, its like piece of cake to quickly lose weight.

    About me: I am blogger of [url=]Quick weight loss tips[/url]. I am also mentor who can help you lose weight quickly. If you do not want to go under difficult training program than you may also try [url=]Acai Berry[/url] or [url=]Colon Cleansing[/url] for quick weight loss.

  3. Howdy,

    Do you guys watch movies in theater or on internet? I use to rent DVD movies from [b][/b]. Recently I discovered that we can watch all new movies on internet on day, they are released. So why should I spend money on renting movies??? So, can you guys please tell me where I can [url=]watch latest movie Cheech & Chong's Hey Watch This 2010[/url] for free?? I have searched [url=][/url], [url=][/url], [url=][/url] but, Could not find a good working link. If you know any working link please share it with me.


  4. I am truly pleased to glance at this website posts which contains lots of valuable facts, thanks for providing these data.
    My page :: diets that work

  5. Write moгe, thats аll І have to say.
    Literallу, it seems as though yοu relied on the video to make
    yοuг point. You obviouslу know
    what youre tаlking abоut, why throw аwаy
    your іntellіgence on just posting videos to уour ѕite
    whеn you сoulԁ be gіvіng us something enlightening to read?

    Αlso vіsit mу blog ρоst ... stem cell therapy

  6. Hello, just wanted to say, I loved this blog post. It was practical.

    Keep on posting!

    Also visit my web page Acai Ultra Lean Diet | Lose Weight Today!

  7. I am regular visitor, how are you everybody?
    This article posted at this web site is genuinely fastidious.

    Feel free to visit my web site; Acai Berry Detox

  8. I lіkе the vаluable info уοu prоviԁe in your
    artiсles. I will bοokmаrk your blog
    аnd checκ again here rеgularlу.
    I am quitе ѕurе I ωill lеагn a lot οf
    new stuff right hеre! Best of luck fοr thе next!

    Heге іs my web sіtе free health clinic

  9. I'm really impressed together with your writing skills and also with the structure to your blog. Is this a paid theme or did you modify it your self? Either way stay up the nice quality writing, it is rare to peer a great weblog like this one these days..

    Here is my webpage - Buy Anti Aging Cream

  10. I have been browsing online more than 2 hours today, yet I never found any interesting article like yours.
    It's pretty worth enough for me. In my view, if all web owners and bloggers made good content as you did, the net will be much more useful than ever before.

    Feel free to surf to my blog post BeauteMD

  11. What's up, for all time i used to check blog posts here in the early hours in the break of day, as i like to learn more and more.

    My site Auravie Skin Care Review

  12. Very good blog! Do you have any suggestions for aspiring writers?
    I'm hoping to start my own website soon but I'm a little lost on everything.
    Would you propose starting with a free platform like Wordpress or go for a paid option?
    There are so many choices out there that I'm completely overwhelmed .. Any tips? Thanks!

    Here is my website ... Enduros Male Enhancement

  13. Thanks for another informative website. Where else could I get
    that type of info written in such an ideal way? I have a venture that I'm simply now operating on, and I have been at the glance out for such information.

    Feel free to surf to my web-site ... Order Trimextrin

  14. Thanks very nice blog!

    Stop by my blog: payday Loans

  15. I do believe all the ideas you've introduced for your post. They're really convincing and can certainly work.
    Still, the posts are too quick for newbies. Could you please
    lengthen them a little from next time? Thank you for the post.

    Visit my webpage Buy Xength X1

  16. My brother suggested I might like this blog. He was totally right.

    This post truly made my day. You can not imagine simply how much time I had spent for
    this information! Thanks!

    my weblog - raspberry ketone reviews

  17. Taste is the key here because you want something that you’re
    going to be able to drink every single day.
    During your resistance training workouts, you should practice fascial stretching.
    Figuring out how much protein you should be eating can be tricky.

    Also visit my web site; Power Pump XL

  18. Link exchange is nothing else however it is simply placing the other person's webpage link on your page at proper place and other person will also do similar in favor of you.

    my blog: Buy green coffee

  19. Hey I know this is off topic but I was wondering if you knew of any widgets
    I could add to my blog that automatically tweet my
    newest twitter updates. I've been looking for a plug-in like this for quite some time and was hoping maybe you would have some experience with something like this. Please let me know if you run into anything. I truly enjoy reading your blog and I look forward to your new updates.

    my weblog ... Buy instant income

  20. Every weekend i used to pay a visit this web site, as i wish for enjoyment, as
    this this site conations really nice funny information too.

    My page :: Cambogia Trim Diet

  21. you're actually a just right webmaster. The website loading speed is amazing. It sort of feels that you'гe dοing
    any unique trick. In adԁitiοn, The сontentѕ are maѕtегpіecе.
    you have performed a gгeat ρrocesѕ on this topіс!

    Мy web site - antifungal Shampoo

  22. Tv set And Blu Beam - The Heavenly Meet

    Also visit my website - best projectors 2013

  23. Steps to create Money As being a Taxi Taxi driver In New york
    Or Anywhere

    my homepage euro casino

  24. 4 Of this Highest Regarded Wireless Would you Systems

    Have a look at my webpage - best home projectors - -

  25. So, what is it that produces Nike Air Max stand out from each
    of one other sports activities trainers concerning
    Nike Air Max market. Tron's original soundtrack by Wendy Carlos never left an impression with me either even being a film score and electronica fanatic. Pair them with satin gloves to get an extremely 80s glam look.

    my site daft punk Random access memories rapidshare