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IBM DB Administration Interview Questions
Questions Answers Views Company eMail

As a part of your job, what are the DBCC commands that you commonly use for database maintenance?

1 1893

Where would you look for errors from the database engine?

1732

7. Where should you place Archive logfiles, in the same disk where DB is or another disk? 8. Can you take online backup of a Control file if yes, how? 9. What is a Logical Backup? 10. Should you take the backup of Logfiles if the database is running in ARCHIVELOG mode? 11. Why do you take tablespaces in Backup mode? 12. What is the advantage of RMAN utility? 13. How RMAN improves backup time? 14. Can you take Offline backups using RMAN? 15. How do you see information about backups in RMAN? 21. Where RMAN keeps information of backups if you are using RMAN without Catalog? 22. You have taken a manual backup of a datafile using o/s. How RMAN will know about it? 23. You want to retain only last 3 backups of datafiles. How do you go for it in RMAN? 24. Which is more efficient Incremental Backups using RMAN or Incremental Export? 25. Can you start and shutdown DB using RMAN? 26. How do you recover from the loss of datafile if the DB is running in NOARCHIVELOG mode? 27. You loss one datafile and it does not contain important objects. The important objects are there in other datafiles which are intact. How do you proceed in this situation? 28. You lost some datafiles and you don't have any full backup and the database was running in NOARCHIVELOG mode. What you can do now? 29. How do you recover from the loss of datafile if the DB is running in ARCHIVELOG mode? 30. You loss one datafile and DB is running in ARCHIVELOG mode. You have full database backup of 1 week old and partial backup of this datafile which is just 1 day old. From which backup should you restore this file? 31. You loss controlfile how do you recover from this? 32. The current logfile gets damaged. What you can do now? 33. What is a Complete Recovery? 34. What is Cancel Based, Time based and Change Based Recovery? 35. Some user has accidentally dropped one table and you realize this after two days. Can you recover this table if the DB is running in ARCHIVELOG mode? 36. Do you have to restore Datafiles manually from backups if you are doing recovery using RMAN? 37. A database is running in ARCHIVELOG mode since last one month. A datafile is added to the database last week. Many objects are created in this datafile. After one week this datafile gets damaged before you can take any backup. Now can you recover this datafile when you don't have any backups? 38. How do you recover from the loss of a controlfile if you have backup of controlfile? 39. Only some blocks are damaged in a datafile. Can you just recover these blocks if you are using RMAN? 40. Some datafiles were there on a secondary disk and that disk has become damaged and it will take some days to get a new disk. How will you recover from this situation? 41. Have you faced any emergency situation. Tell us how you resolved it? 42. At one time you lost parameter file accidentally and you don't have any backup. How you will recreate a new parameter file with the parameters set to previous values. 16. What is a Recovery Catalog? 17. Should you place Recovery Catalog in the Same DB? 18. Can you use RMAN without Recovery catalog? 19. Can you take Image Backups using RMAN? 20. Can you use Backupsets created by RMAN with any other utility?

1 10608

How do you find out from the RMAN catalog if a particular archive log has been backed-up?

2 8141

What are the ways tablespaces can be managed and how do they differ?

2 4060





hi, suppose i created one table after few days i did some insert,update how can i know when will i did ddl or dml operation is undergone on that table

3 3651

i have 10gp file.now i need store in database..but database have only 7gb memory only..how do u store the file ?

961

what is the differnce between process and thread ?

1 2759

what is meant by gateway

1 1984

how will you see when the database was started using sql prompt?

2 3391

what is rebuild index??

2 3238

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Un-Answered Questions

What is ObjectInspector functionality in Hive?

150


hi i got i 20 from sacred heart university u.s.a.i got good tofel score and my gre is score is very poor.my university requirement is only tofel.i completed my b.pharmacy in 2009 so i got 1 year gap is their chances to reject visa?what i have to do i was very tensed.how to sought out my problem

1229


What is OutputCommitter?

74


1. how can see that how much the vendor is owed 2.how do u reverse a MIRO invoice 3. how do u pay vendor in foreign currency

1183


How to create a console application in Kylix?

998






1) How can we use VB script in testing the application? 2) What all are the things(Software application to be installed in PC) we need to learn VBscript?

2919


explain the methodology of Data Warehousing?(Polaries)

1178


why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?

933


Doul Bar reinforcement and details of drawing.

1133


What is sales and operational planning(S&OP)process and what are the advantages of S&OP process?

2040


How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?

758


while initialization of array why we use a[][2] why not a[2][]...?

1223


what is the entry to be made for vat when any purchase is made in that bill vat amount is included ?

2233


A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

878


What is wsdl file? (explain in detail)

1603






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