what is indexing ? what are different types of indexes
supported by oracle ?

Answer Posted / sabeena

Indexing is sorting data, used for fast retrival.

Different types are

b tree index
function based index
reverse key index
bitmap index
compressed index

Is This Answer Correct ?    14 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

in general which algorithms for used?

1762


What is the goal of optimizer?

770


What are snapshots? What are materialized views & where do we use them?

747


Explain if a flat file cotains 1000 records how can I get first and last records only?

718


What is the difference between snowflake and star schema? What are situations where snowflake schema is better than star schema when the opposite is true?

771


What is analytical or analytic mean?

857


Explain what is a staging area? Do we need it? What is the purpose of a staging area?

739


How to drill through from a powerplay cube to reportnet?

689


What is the difference between a primary and secondary actor in use case modeling?

822


Explain clearly how to explain any (sales) project in interview. Actually feom where report developer work starts?pls reply as soon as possible?

740


After we create a scd table, can we use that particular dimension as a dimension table for star schema?

767


Can any one explain the hierarchies level data warehousing.

756


How would you write a left join statement to return a result set of movie.title�s and director.name�s?

766


What are session timeout and application timeout? Where we have to do this process?

799


How to limit the max no of rows retrieved in the report?

724