DB Administration Interview Questions
Questions Answers Views Company eMail

How can you enable a trace for a session?

1 4998

What is the difference between the SQL Loader and IMPORT utilities?

3 18876

Name two files used for network connection to a database.

5 13158

Is it possible to run 32 bit sql server 2000 on64bit windows platform.if how much memory is available to sql server?

1 3320

what is the difference between db2start command and start database manager command?

1 4568

Which types of backups you can take in Oracle? 2. A database is running in NOARCHIVELOG mode then which type of backups you can take? 3. Can you take partial backups if the Database is running in NOARCHIVELOG mode? 4. Can you take Online Backups if the the database is running in NOARCHIVELOG mode?

11 28621

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?

IBM,

1 12531

how do we explain a project in cognos in an interview? please help me. Also how do we perform testing in cognos after creating reports?

HSBC,

2969

Which types of backups you can take in Oracle? 2. A database is running in NOARCHIVELOG mode then which type of backups you can take? 3. Can you take partial backups if the Database is running in NOARCHIVELOG mode?

1 4165

Can you take Online Backups if the the database is running in NOARCHIVELOG mode? 5. How do you bring the database in ARCHIVELOG mode from NOARCHIVELOG mode? 6. You cannot shutdown the database for even some minutes, then in which mode you should run the database?

FA, GE, Wipro,

11 23703

. I have my backup RMAN script called "backup_rman.sh". I am on the target database. My catalog username/password is rman/rman. My catalog db is called rman. How would you run this shell script from the o/s such that it would run as a background process?

1979

Can you take Image Backups using RMAN? . Can you use Backupsets created by RMAN with any other utility

Tech Mahindra,

1 10047

Should you place Recovery Catalog in the Same DB? . Can you use RMAN without Recovery catalog

4 12952

what is the last version,the release date of that version and fix pack of ibm db2 udb?

1520

what is the difference between off-line back up and on-line back up in ibm db2 udb?

Zenith,

2 8092


Post New DB Administration Questions

Un-Answered Questions { DB Administration }

If you are given access to a sql server, how do you find if the sql instance is a named instance or a default instance? : sql server DBA

562


what is grd?

636


How to bind a cobol module to a given job? I am not able to understand this concept.Can anyone help me out as how to carry out this task?

1655


How would you extract DDL of a table without using a GUI tool?

2048


What is the difference between clustered and non-clustered index? : sql server DBA

545






What is dcl? : sql server DBA

646


What are the new features in sql server 2005 when compared to sql server 2000? : sql server DBA

610


What are the different ways you can create databases in sql server? : sql server DBA

599


What are the differences in clustering in sql server 2005 and 2008 or 2008 r2? : sql server DBA

548


what functionality does oracle provide to secure sensitive information?

552


Can you tell me about your experience with the administration of COTS system..? Also, how do you set up seed data..?

1743


what are the benefits of flashback feature?

589


How can you control the amount of free space in your index pages? : sql server DBA

729


What happens on checkpoint? : sql server DBA

564


What is a system database and what is a user database? : sql server DBA

599