Teradata Interview Questions
Questions Answers Views Company eMail

Can any one please provide me practical example of How to do the performance tuning in Query??

Amdocs,

5 7416

Why FLOAD does not support multiset tables??

Tesco, TCS,

3 10186

What is collect State in Teradata ? what it use and how it works??

TCS,

3 8527




What EXPLAIN does in Teradata, what is High confidence, Low confidence and No confidence.. And How we improve the query performance .

Accenture,

5 24217

What is the difference between correlated sub queries and inner queries?

4 12295

Hello all, There is a table with 4 columns in that 3 columns has been already loaded with 5 million records.4th column is empty,Now I have got 5 million records data which has to be loaded into 4th column.How can I load this data fastly in to the 4th column with out using update

CTS, TCS,

5 9009

Where we use PPI in real time??? What is the disadvantages of PPI?

IBM, Mphasis,

3 6719

What is the Maximum number of volatile tables that can be created?

Mphasis,

4 6246




What is a pseudo key? What is its use???

Mphasis,

2 12918

Can u load same data into multiple tables using multiload? How will be the loading process? Whether it will be serially or parallely?

IBM,

2 6300

How to handle nulls in Teradata??? How many columns can be there in a table??? How to find average sal with out using avg function????

Mphasis,

3 9077

In which scenarios we use Volatile tables and Global temporary Tables in Real time? Please give me one real time scenario???I know wat is its use??

CTS, Lexicon,

3 11548

What is differnce between Error code and Error Level in Bteq

IBM,

6 28999

Can we take collect stats on Dervied Tables and Volitable tables, What is Golabal Temporary table what is the use of this Golabal Temporary table ,When we create any kind table in Teradata it will show in Golabal Temporary table

IBM,

6 13324

What is the default join strategy in Teradata???

IBM,

5 19091


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Un-Answered Questions { Teradata }

how can we analyze the locks ?

965


Can any one explain me the difference between BTEQ and MLOAD,TUMP. All canbe used for same purpose but still differnt methods. why ?

2143


if collect stats but it show low confidence why?

73


hi frnds i want to learn teradata utilities and teradata dba real time. i have 1+ years of experience in teradata. so i want to go deeply in Tearada. plz let me know at my email id who r best to learn from. im lookng for a realtime guy in HYD or Banglr. Thanks in advance. Rajesh my email-id: rajeshmss87@gmail.com

1650


How to explain project Architecture and flow in teradata interviews?Can please anyone help on this? Am new to teradata.

2805






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

1373


how do we write scripts in unix how to execute scripts in real time anybody please needfull or give me number i will cal u

569


what are the day to day activities of teradata DBA ?

4298


Backup Script was blocked then you are unable to archive the data. how do you analyze it and where do you identify ?

779


what is object level locking ? where do appear this type of locking ?

2417


i learn teradata,it is so intersting,now i want teradata certifications ,so any 1 help me to get teradata certifications TD 12 ? email:kdcrazyy@gmail.com

1056


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?

923


If the PMON is not working then how do you identify and monitor all the processes, resources and sessions ?

1055


how many modules are there in telecome domain?how to explain the architecture?

851


Backup Script was blocked you are unable to archive the data now. how do you analyze it and where do you identify ?

882