1:when we develop a project what are the performance issue
will raise?? KPIT
2:if a table have INDEX and CONSTRAINT why it raise the
performance issue bcoz when we drop the index and disable
the constraint it performed better??KPIT
3:what are unix commands frequently used in informatica??
Answer Posted / srinu
Hai KPIT,, My Ans will Show you the Way,,,,,,
1) Performance Issue in Informatica: In your
Project ,My Project,,,Any Project Mostly our final
Target was Loading the Data in to Target Table, under
Efficiently in Less time.
Tune the Mapping, Less Active Transformations,Use Best
Loading Option,
Partition the Data,Index less Target Table,,,,,
2)Yes, we drop the index and disable the constraint Perform
Better,That loads the Data based on the Particicular Table
only,Else I will go for Parent,Child test in FK
Relation,Condition in constraint,,,After Loading the Data
You can Configure indexes, constraints on Table.
3)SED-commands,AWK-commands,Dir Commands,File Commands,Copy
Commands only,,
Thanks
Srinu.srinuvas@gmail.com
| Is This Answer Correct ? | 3 Yes | 3 No |
Post New Answer View All Answers
Give one example for each of conditional aggregation, non-aggregate expression, and nested aggregation?
How you can differentiate between connected lookup and unconnected lookup?
Define sessions in informatica etl?
What is the meaning of decode in informatica?
CANNOT USE PARAMETER FILE! Hi all, I am trying to use parameter file for my workflow. This could help me to filter records where CITY = 'Portland' Following is what I have done: **in Designer - create new parameter : $$PARA_FIL, Parameter, String, IsExprVar=TRUE, Initial value = [empty] - Source Qualifier/ Properties/Source Filter: CUSTOMERS.CITY='$$PARA_FIL' **Create Parameter file: C:\Informatica\PowerCenter8.6.0 \server\infa_shared\BWParam\DynamicParamTest.txt $$PARA_FIL='Portland' **Configure workflow to use the parameter file: Edit Workflow/Properties/Parameter Filename: C:\Informatica\PowerCenter8.6.0 \server\infa_shared\BWParam\DynamicParamTest.txt I also configured directory of parameter file for session task. However, I just got this in the session log: [SQ_CUSTOMERS] SQL Query [SELECT CUSTOMERS.CUSTOMER_ID FROM CUSTOMERS WHERE CUSTOMERS.CITY='$$PARA_FIL'] No record has been loaded to target. It seems that the parameter file has not been read. I cannot understand the reason why. Could any of you kindly suggest me anything? Thanks
Explain the pipeline partition with real time example?
Can we create a node as a gateway node and the same node can be assigned to a grid?
How identifying bottlenecks in various components of informatica and resolving them?
what is persistent lookup cahce?how to use and when to use this persistent lookup cahce?explain?
Can we change Dynamic to Static or Persistent cache? If so what happens?
How do you remove duplicate records in informatica? And how many ways are there to do it?
What is a difference between complete, stop and abort?
What is the scenario which compels informatica server to reject files?
Explain pmcmd command usage in informatica
How can one identify whether mapping is correct or not without connecting session?