Answer / Kiran Kumar

Online backups allow data to be backed up while the database is still in use. To perform an online backup, you can follow these steps:nn- Shutdown Processes: Before starting the backup, it's a good idea to shut down any unnecessary processes to reduce contention and improve backup performance.n- Backup Command: Use the appropriate backup command for your database system (e.g., `pg_dump` for PostgreSQL or `expdp` for Oracle).n- Restore Testing: After the backup is completed, test the restore process to ensure that the backup can be successfully restored.

Can an extended stored procedure be called from inside a user-defined function?

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What are triggers? How many triggers you can have on a table?

2 Answers   Ramco,

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You are testing the performance of a query the first time you run the query, the performance is slow. the second time you run the query, the performance is fast. why is this?

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Explain about a primary key?

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explain detail about ftp in datastage?

1 Answers   IBM,

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Explain about normal forms?

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What are the types of database model?

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What is bit datatype and what's the information that can be stored inside a bit column?

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Given an employee table, how would you find out the second highest salary?

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A) Which two are benefits of Teradata's support for ANSI Standard SQL? (Choose two.) 1.data is distributed automatically 2.queries get optimized to better plans 3.submit queries from other database systems 4.can interface with BI tools B) Which statement is true when comparing the advantages of third normal form to star schema? 1.Star schema tends to have fewer entities. 2.Star schema requires additional data storage. 3.Third normal form tends to have fewer entities. 4.Third normal form requires additional data storage. C)Which two sets of functions does the Parsing Engine (PE) perform? (Select two.) 1.sorting, formatting, and aggregating of the final answer set 2.flow control of the data to and from the participating tables 3.SQL statement interpretation, syntax validation, and semantic evaluation 4.dispatching the step execution sequence to the AMP via the BYNET D) Which two can be achieved with Teradata Active System Management (TASM)? (Choose two.) 1.disable hardware 2.react to hardware failure 3.influence response times 4.collect metadata E) Which three mechanisms can be used to ensure security within the Teradata Database? (Choose three.) 1.views 2.spool limits 3.roles 4.access rights 5.profiles

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fact table and dimension table containg one to many relationship or many to one relastionship

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How can you fix a poorly performing query?

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