How does indexing improve query performance?

Answer Posted / yuvaevergreen

PI is very important in TD, because the data distribution
is basically dependent on PI.
1.Data distribution
2.Fastest way to retrieve rows
3.Important for joins

Is This Answer Correct ?    4 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

any one answer me how they can analyzing the project using data ware housing?

2032


How to eliminate product joins in a teradata sql query?

608


What are the main components of teradata system?

588


Explain amp in teradata?

579


Comment whether bottleneck is an error or not.

625






How to select first n records in teradata?

613


Explain vproc in teradata?

568


Difference between multiload and tpump?

623


What is spool space and when running a job if it reaches the maximum spool space how you solve the problem?

660


What is the meaning of Caching in Teradata?

696


What is the function of parser component in teradata?

624


Can we have two time dimensions in a schema(either star or snow flake)? For ex if we want joining date of employee and if we want today's sales with time whether can we have two time dimensions for accommodating above tasks?

1628


What do you mean by teradata sql assistant?

596


Explain and compare pros and cons of snow flake schemas?

615


Explain the term 'row' related to relational database management system?

540