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What is the importance of UPSERT command in Teradata? In Teradata, what is the purpose of using CASE Expression? How to find duplicate records in a table? List out the different forms of locks available in Teradata. List some of the most commonly used BTEQ scripts. Explain various table types supported by Teradata. What's the best way to check the current version of Teradata? What steps will you take if the Fast Load Script does not run in a reliable manner? State difference between Teradata and Oracle. Mention the procedure via which we can run Teradata jobs in a UNIX environment.

Teradata Interview Questions for Experienced.

What are the benefits of using ETL tools over Teradata? Mention a few ETL (Extract, Transform and Load) Tools that come under Teradata. What do you mean by Spool space in Teradata? Write its usage. What is performance tuning and why is it important? What is the process of restarting MLOAD Teradata Server after execution? What is the process of restarting MLOAD Client System after its failure? Why Multi-load doesn't support USI (Unique Secondary Index) instead of NUSI (Non-Unique Secondary Index)? Explain different string manipulation operators and functions associated with Teradata.

What do you mean by Teradata utilities and write different types of Teradata utilities? What are the newly developed features of Teradata? What is the importance of using Teradata?

Teradata Interview Questions for Freshers.