DB Administration Interview Questions
Questions Answers Views Company eMail

How can you enable a trace for a session?

1 4981

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

3 18842

Name two files used for network connection to a database.

5 13105

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

1 3309

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

1 4552

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 28554

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 12509

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,

2959

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 4144

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 23604

. 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?

1971

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

Tech Mahindra,

1 10031

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

4 12920

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

1512

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

Zenith,

2 8069


Post New DB Administration Questions

Un-Answered Questions { DB Administration }

what is the use of recording information about current session?

552


Assuming today is Monday, how would you use the DBMS_JOB package to schedule the execution of a given procedure owned by SCOTT to start Wednesday at 9AM and to run subsequently every other day at 2AM.

1691


How do you open a cluster administrator? : sql server DBA

572


What is the cache hit ratio, what impact does it have on performance of an Oracle database and what is involved in tuning it?

1963


What are the different types of upgrades that can be performed in sql server? : sql server DBA

674






Does any body has ORACLE Certification Dumps or Materials on 9i DBA, 10G DBA, Internet Application Developer, OCP 8i to 10g DBA Upgrade, Oracle 11i if any body have it, please kindly drop an email to: taruni_2k8@yahoo.com

1712


Typically, where is the conventional directory structure chosen for Oracle binaries to reside?

1969


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

589


What is a correlated sub-query? : sql server DBA

575


What is dcl? : sql server DBA

634


Database crashes. Corruption is found scattered among the file system neither of your doing nor of Oracle's. What database recovery options are available? Database is in archive log mode.

1738


what is the diffrence between core dba and apps dba?

2077


What do the 9i dbms_standard.sql_txt() and dbms_standard.sql_text() procedures do?

1958


A table is classified as a parent table and you want to drop and re-create it. How would you do this without affecting the children tables?

1989


List out some of the requirements to setup a sql server failover cluster.? : sql server DBA

696