Home teradata Teradata Interview question set(with no answers)

Teradata Interview question set(with no answers)

  • How to improve performance of the query?
  • Explain Primary Index and how do we select that?
  • What is skew factor?
  • What is difference between Role, Priveledge and profile?
  • What are different spaces in Teradata and difference?
  • If your Skew factor is going up. What are remedies?
  • When, How and why we use Secondry Indexes?
  • What is difference between Primary Key and Primary Index?
  • What is difference between database and user in Teradata. what are the things you can do or can not do in both?
  • What is Checkpoint?
  • When do you use BTEQ. What other softwares have you used or can we use rather than BTEQ?
  • How many type of files have you loaded and their differences. (Fixed and Variable)?
  • How do you execute your jobs in Teradata Environment?
  • What was the environment of your latest project (Number of Amps, Nodes, Teradata Server Number etc)?
  • What is difference between Multiload, FastLoad and TPUMP?
  • What is the process to restart the multiload if it fails?
  • How does indexing improve query performance?
  • what are the different functions you do in BTEQ (Errorcode, ErrorLevel, etc)?
  • What are different types of joins?
  • What does COALESCE do in Teradata?
  • what is difference between ZEROIFNULL and NULLIFZERO?
  • What is Range_N?
  • Explain PPI
  • What is Casting in Teradata?
  • What is difference between UNION and MINUS?
  • What are the types of tables in Teradata?
  • Can we have an unconnected lkp to lookup a DB2 record against a Teradata record?
  • What is the diffrence between Multiload & Fastload interms of Performance?
  • How does indexing improve query performance?
  • How can we build data marts from FSLDM. is there any standard approach for this?Is FSLDM supports place ?
  • Does SDLC changes when you use Teradata instead of Oracle?
  • What is a common data source for the central enterprise data warehouse?
  • What are two examples of an OLTP environment?
  • In which phase of the Active Data Warehouse evolution do you use data to determine what will happen?
  • what is the difference between start schma and Fsldm?