What is the difference between primary key and secondary key?

968

Why do we need database management?

961

1. Tell me about your self? 2. Latest Project Introduction? 3. Difference between server jobs and parallel jobs? 4. Seq-Seq Explain its behavior and execution mode and which parallelism technique is used? 5. What is padding characters? 6. Seq-Seq, Seq-Copy-Seq which one is the best and efficient? 7. How many reject links do we have to a transformer? 8. How many reject links to join stage? 9. Difference between join and lookup? 10. How to design PX routine? 11. How can we call job in another job? 12. Difference between batch and sequencer? 13. Which Database is used? 14. What is change capture? Give briefing of that? 15. What is change Code? Explain? 16. How you call UNIX in Ds? 17. How do you call JCL in UNIX? 18. How do you pass the job status of one job to another job? Have designed any job sequencer? 19. How do you find a file in existed directory? 20. How can you call parallel jobs in transformer? 21. Execution of jobs in command line? 22. Tuning of sql queries? 23. What is orchestrating metadata? 24. What are junk dimension? 25. What are the third party tools you are used? 26. What are the system variables you have used? IBM 1. What is virtual dataset? 2. How do you handle reject link to a peek stage? 3. What is transaction table? 4. Which one is the efficient from the following? a. ODBC enterprise b. Oracle enterprise 5. How can you extract data from excel sheet? Do you know how to parameterize, this option? 6. Six pages of complex query I have, how do you simplify this query? 7. Difference between dataset and lookup file set?

1905

How is data stored in a database?

932

How do I keep my database up to date?

929

Give us a non-computer example of preemptive and non-preemptive scheduling?

921

What do you understand by ‘atomicity’ and ‘aggregation’?

902

What is the main purpose of triggers in database?

887

What are the examples of database management system?

871

what are database files, control files and log files. How many of these files should a database have at least? Why?

869

Is it possible to declare or create a cursor for update of table? If no tell me why?

1051

Which dbms is best?

913

What do you mean by deadlock dbms?

1105

what are the two integrity rules used in DBMS?

1117

What do you understand by database triggers?

930