what is shared lookup&persistent lookup?
Answers were Sorted based on User's Feedback
Answer / anoymous
shared cache: Data in the cache can be shared between
multiple transformations. It is just sharing the lookup cache.
Persistence cache: The cache can be reused across multiple
session runs.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / ripz
Sahred lookup and persistent look ups are the lookups which
are cached once and are used by more than one ETLs. This is
useful when the data in the table which is used for the
lookup is huge and if this table is used in more than once,
then in every ETL considerable amount of time is used for
casching the table everytime if lookup is used individually.
Persistence lookup hence helps in performance improvement.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / santoshkumar chakka
I know abt 4 types lookup's
they are
1.static lookup
2.dynamic lookup
3.persistence lookup
5.No Cache lookup
PERSISTENCE LOOKUP:By default .dat and .idx files are created using session execution time and these are deleted automatically at the end of session execution using persistence property the cache files are not deleted even after session execution.the same cache files are uesed for next exicution
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / raman
integrating service can create the shaaredlookup&persistent
lookup.!
| Is This Answer Correct ? | 0 Yes | 3 No |
Why use shortcuts(Instead of making copies).
what is $$$$?
Which means the first record should come as last record and last record should come as first record and load into the target file?
my source is a comma delimited flatfile as eno, ename, sal 111,sri,ram,kumar,1000 and my target should be eno ename sal 111 sri ram kumar 1000 i.e; we need to eliminate the commas in between the data of a comma delimited file.
111111111111ravi11111111kumar11111111111? i want display ravi kumar using sql?
Which will beter perform IIf or decode?
How the informatica server increases the session performance through partitioning the source?
lookup is passive y can't it be active? let us say i have some records in my source like 101,rohit,1000 101,rohit,1000 102,kumar,2000 like wise now as it is having multiple matches i return only first,last value it can't return bouth the values that means lookup is acting as select distinct right by default what means it is active?
What is the benefit of session partitioning?
where to store informatica rejected data? How to extract the informatica rejected data?
what is degenerated dimension?
What is the advantage of informatica?