surrogate keys usage in Oracle and Informatica?

Answer Posted / palani

Its mainly used to maitain the uniqueness in the target
system that contains records from various source systems
ie. different source system may contain different keys as a
primary key.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What does update strategy mean, and what are the different option of it?

580


which one is better performance wise joiner or look up

616


How can we use mapping variables in informatica?

593


In informatics server which files are created during the session rums?

624


r u done any partitions in ur project?

1395






How to extract sap data using informatica?

597


what is song in infrmatica...?

1666


What is the difference between source qualifier transformations source filter to filter transformation?

572


What is a joiner transformation and why it is an active one?

570


Explain lookup transformation in informatica

640


what is the Default Source Option For Update Strategy Transformation?

749


What is difference between a gateway node and worker node?

612


Calculate sum of salaries department wise. Then the sum will be repeat for all columns in each department. Develop a mapping for this.

1830


Briefly explain the aggregator transformation?

584


Hello , I am unable to work with SQL transformation at least. Where do i need to give connection for sql transformaton ? At session level there is no property . I have created a SQL Transformation and chosen query mode. But do i need to pass connection information to it ? I don't know where do i need to write a query ? I have written a query in file and that file path i gave in the properties of SQL Transformation. But it is not working. Could any one of you please let know how can i work with SQL Transformation? Advance Thanks.

2315