Hi can any one tell me the difference between persistence
and dynamic caches? On which conditions we are using these
caches?
Answers were Sorted based on User's Feedback
Dynamic:--
1)When you use a dynamic cache, the Informatica Server
updates the lookup cache as it passes rows to the target.
2)In Dynamic, we can update catch will New data also.
3) Dynamic cache,Not Reusable
(when we need Updated cache data, That only we need Dynamic
Cache)
Persistent:--
1)a Lookup transformation to use a non-persistent or
persistent cache. The PowerCenter Server saves or deletes
lookup cache files after a successful session based on the
Lookup Cache Persistent property.
2) Persistent, we are not able to update the catch with New
data.
3) Persistent catch is Reusable.
(When we need Previous Cache data, That only we need
Persistent Cache)
I think it will help you.
Any,,,??,,,or ,,corrections let me know,,,,,,,
srinu.srinuvas@gmail.com
| Is This Answer Correct ? | 8 Yes | 0 No |
few more additions to the above answer.....
1.Dynamic lookup allows to modify cache where as
persistentlookup does not allow us to modify cache.
2.Dynamic lookup use 'newlookup row', a default port in the
cache but persistent does use any default ports in cache.
3.As session completes dynamic cache removed but the
persistent cache saved in informatica power centre server.
| Is This Answer Correct ? | 8 Yes | 0 No |
Answer / saradhi
Thank u so much srinu ......
Ur answer gaves me one idea..................
| Is This Answer Correct ? | 1 Yes | 4 No |
If source is having 5000 rows,and if you want to load data into 500 rows to target,if the session runs successfully,how can you verify the target if the rows are successfully loaded or not.
how many new transformations are introduced in 8.1 which are not available in 7.1? any new transformation in 8.6?
What are the issues u have faced in ur project? Guys pls answer to dis question.Due to this question I have failed in 3 interviews.
What is the internal processes of integration server in Informatica? How data will be extract and load to the target?
Can you copy the session to a different folder or repository?
what is work of PUSH DOWN option
Hi frndz, "while i am going to run the infotmatica power designer,he ask the id and password ",then i enterd the id and passwd , at that time i got the error as " failed to connect repository " ?
What are the tasks that source qualifier perform?
What are set operators in Oracle
Define mapplet?
hi all, can anyone tell where i will get good informatica training in Pune? thanks in advance.
Explain lookup transformation source types in informatica