What is the difference between SI and JI?
Answers were Sorted based on User's Feedback
Answer / veena
SI is like pointer to the base rows where as JI stores actual rows
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / sivareddy
si it avoids the full table scan nd it gives the fast reterival of the data and use the extra perm space where as join index it holds the one or more then tables data nd stored in perm space.at the time of joined two table it will take data from join index.and also it will use aggregate operations,anylatical operations.
| Is This Answer Correct ? | 1 Yes | 0 No |
I have a table with emp id, emp name, dept id and sal where dept id is NUSI. SEL * FROM EMP WHERE DEPTID = 100. Can any one explain how it will fetch the record.
IS IT POSSIBLE THAT THERE R TWO PRIMARY KEY WILL BE IN A SAME TABLE?PLZ HELP ME BY GIVING THE ANSWER.THANK U.
Let us say there is a file that consists of 100 records out of which we need to skip the first and the last 20 records. What will the code snippet?
How can you track login parameters of users in teradata?
What is the maximum number of dml can be coded in a multiload script?
Hi frnds this question is asked at IBM One query is there when we dont collect stastics on it,exlapin will show us LOW CONFIDENCE,When we collect stastics it shows HIGH CONFIDENCE.WHAT IS THE INTERNAL ARCHITECTURE ACTUALLY GOING ON ?????ASKED ON 23-08-2012 THANKS IN ADVANCE
How to explain project Architecture and flow in teradata interviews?Can please anyone help on this? Am new to teradata.
0 Answers Infosys, Wells Fargo,
What are types of partition primary index (ppi) in teradata?
what is the advantages of other etl tool than teradata utilities or vice versa ?(datastage/informatica)
Which is faster fastload or multiload?
i have a table like sales....the field are Prodid Jan(jam month sales)Feb March 1 20 76 50 2 30 94 40 3 40 90 30 4 70 20 30 5 23 40 40 6 85 30 55 7 84 20 65 8 10 93 40 9 57 30 30 10 38 83 40 11 35 39 90 12 83 89 50 Now the Question is i want get the max sales of 12 products from the months.hint:for eg I WANT GET 89 for product12... Can any one help me
How do you check the performance of Teradata Query and list down the basic Performance Tuning steps you use?