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How to convert a row into column and a column into rows? Name all DTM threads. What all threads stop when we issue STOP or ABORT? How to pass the value of a data(variable kind of) from one session ( generated in mapping) to another session in the same workflow... What are the tyoes of partitioning you know and how to apply them in real time ... Can partitioning be applied to expression transformation and how
CTS,
Informatica 1119What happen if you have 3 ports in SQ and 4 ports in SQL override of SQ( provided all ports are in same order and they are connected with proper source and target)? Also what happens when I have 4 ports and will extract 3 values in SQloverride.. What will be the value in 4th port ?
CTS,
Informatica 1176how lookup transformation is made active in new versions... When to use connected and when to use unconnected lookup and why? which is good for session performance. How to make lookup persistent and how to remove stale data from that lookup. how commit works - when we stop or abort data. Explain in both cases. What is factless fact table and have you ever used it in real time scenarios.
CTS,
Informatica 1245I have 10 columns in a flat file and 10 rows corresponding to that columns. I want column number 5 and 6 for last five records. In unix as well as informtica.
CTS,
Informatica 1199What if i will group by with some port in aggregator and will not pass the sorted values. Will the session fails tell in both cases ( if i have configured it for sorted input and if i have not configured it for sorted input).
CTS,
1 Informatica 1569
Question { 12105 }
What is difference between partioning of relatonal target
and partitioning of file targets?
Answer
Sessions can run on single or multiple nodes (in a grid). Row distribution depends on two factors –
Number of Threads
Number of Partitions
A. Flatfile Sources
Partitioning allowed for both Direct and Indirect type Flat file sources
Some Source Qualifier transformation with subsequent transformations like Joiner transformation (configured with sorted input) require sorted row order.
It is important to preserve the row order while distributing rows between partitions. This is to be achieved by setting an appropriate value for “Concurrent Read Partitioning” in Session properties.
B. Flatfile Targets
While writing a target, you can configure Informatica to write to different files one for each partition or you can configure to write data concurrently.
All these files can be merged to one file when the process completes as indicated in the merge type
To merge the files, you can either set below properties / write a post session command – Merge Type, Merge File Directory, Merge File Name
Informatica allow you to merge the target files in three different ways –
Sequential Merge – Informatica creates one output file for each partition and sequentially merge them to a single file when the session completes
Concurrent Merge – Informatica writes the output data for all partitions concurrently on to one merge file. Sorting order will not be preserved in this type of merge
File List – Informatica creates and write one output file for each partition and write the file directory and file name to a separate list file.
Ref :
http://etllabs.com/informatica/informatica-partitions/4810/
| Is This Answer Correct ? | 1 Yes | 0 No |
Three date formats are there . How to change these three into
One format without using expression transformation ?
Answer
Is_date to check the format
and to_date to change it to desired format
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { Logica CMG, 9888 }
How do schedule a workflow in Informatica thrice in a day?
Like run the workflow at 3am, 5am and 4pm?
Answer