Answer Posted / sivakumar
A candidate key is a combination of attributes that can be
uniquely used to identify a database record without any
extraneous data(unique).One of these candidate keys is selected as
the table primary key else are called Alternate Key. Each table may have one or more
candidate keys. One of these candidate keys is selected as
the table primary key else are called Alternate Key.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Please let me know how to make encryption and decryption with example?
What is the main purpose of Unconnected lookup other than updating slowly changing dimensions? or In which case u use Unconnected lookup?
During the running session, output files are created by informatica server. Enlist few of them.
how many types of dimensions are available in informatica?
Explain constraint based loading in informatica
What is the need of an ETL tool?
What are the different types of repositories created using informatica?
How you prepared reports for OLAP?
Explain how many types of dimensions are available in informatica?
What is DR strategy for Informatica project?
Could you explain what is enterprise data warehouse?
If I have 10 flat files with same name abc.txt files with different timestamps as source I need to load them in tgt table oracle. in between job execution fails and rows are not loaded into tgt. how can I make them load in that target even if my job fails?
How can we use mapping variables in informatica?
How to improve the performance of a session using sorter transformation?
Briefly define reusable transformation?