[Notes from Pinal]: Lots of people think that SSIS is all about arranging various operations together in one logical flow.
Well, the understanding is absolutely correct, but the implementation of the same is not as easy as it seems.
Power Center 8 is Informatica's enterprise data integration platform that serves as the foundation for all data integration projects.
Linchpin People are database coaches and wellness experts for a data driven world.In this 28th episode of the Notes from the Fields series database expert Tim In SQL Server Integration Services, the lookup component is one of the most frequently used tools for data validation and completion.The lookup component is provided as a means to virtually join one set of data to another to validate and/or retrieve missing values.Properly configured, it is reliable and reasonably fast.Various Caches: Persistent cache (we can save the lookup cache files and reuse them the next time process the lookup transformation) Re-cache from database (if the persistent cache not synchronized with lookup table you can- configure the lookup transformation to rebuild the lookup cache) Static cache (When the lookup condition is true, Informatica server return a value from lookup cache and it’s does not update the cache while it processes the lookup transformation) Dynamic cache (Informatica server dynamically inserts new rows or update existing rows in the cache and the target.
Suppose if we want lookup a target table we can use dynamic cache) Shared cache (we can share lookup transformation between multiple transformations in a mapping.2 lookup in a mapping can share single lookup cache) .
Dynamic partitioning allows for data to load in concurrent data streams.
Power Center 8 supports high availability, grid-computing and has extensive failover options.
The remapping values for each globally cached lookup can be specified by a json object as per the following examples: value specifies the period in ISO 8601 format between checks for replacement data for the lookup.
If the source of the lookup is capable of providing a timestamp, the lookup will only be updated if it has changed since the prior tick of all mean populate once and do not attempt to look for new data later.
Metadata is stored in a global metadata repository, enabling data lineage functionality.