Question
Why we use surrogate key?

Answers

In Datastage, we use Surrogate Key instead of unique key. Surrogate key is mostly used for retrieving data faster. It uses Index to perform the retrieval operation.   Your Comment




More Software Questions..
What is the inputsplit in map reduce software?

What is software configuration management?

What Is Java Api For Xml-based Rpc (jax-rpc)?

How can you implement fine-grained auditing?

What is IBM’s simple explanation for Big Data’s four critical features?

What is static synchronized method in JDBC API? Give an example?

What does the NULLIF function do?

What happens if a start method is not invoked and the run method is directly invoked?

Should we override finalize method

what is the difference between mysql_fetch_array and mysql_fetch_object?

How will XML affect my document links?

Why to use Style Sheets?

What are Filters in MVC?

Can you explain Application layer in OSI model?

How to define new testplan attributes?

What are the minimum system requirements to run Photoshop? Is it possible to run Photoshop over linux?

Which oracle package is used to manage the oracle lock management services?

What is Latch Up? Explain Latch Up with cross section of a CMOS Inverter. How do you avoid Latch Up?

What is marker interface?

What types of partitioning are there for BW?



Search
Can you Answer!!
  • Q Who first appeared in the Star Trek episode Space Seed
  • Q main(){ int i=-1; +i; printf("i = %d, +i = %d ",i,+i); }
  • Q Explain the causes of the exhaust valve leakage.
  • Q What is transmitted power control in gsm technology?
  • Q Sunlight can be seen for sometime even after sunset. Which phenomenon of light , caused this?
  • Q Which fashion house sacked designer John Galliano in 2011, after his racist rant at fellow customers in a Paris cafe?
  • Q A person having profound knowledge:
  • Q This is also called “the robe of wool yardage” came from 15th century Persia. Sultan Zain-Al-Abedin summoned weavers from Turkemnistan to teach the craft to Kashmiris. Patterns include rega buta (little flowers), kirk butis (large flowers) and jaldars (patterns created using net). Napoleon gifted 17 of them to his second wife Marie Louis. Name the shawl
  • Q What is tail const?
  • Q Is it possible to automate output processing?
  • Q Is it possible to change existing standard item categories?