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DB Administration Interview Questions
Questions Answers Views Company eMail

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.

Infosys,

2192

Illustrate how to determine the amount of physical CPUs a Unix Box possesses (LINUX and/or Solaris).

1919

How do you increase the OS limitation for open files (LINUX and/or Solaris)?

1 4248

Provide an example of a shell script which logs into SQLPLUS as SYS, determines the current date, changes the date format to include minutes & seconds, issues a drop table command, displays the date again, and finally exits.

1936

Explain how you would restore a database using RMAN to Point in Time?

1 6594

How does Oracle guarantee data integrity of data changes?

SoftSol,

1 4254

Which environment variables are absolutely critical in order to run the OUI?

2 4257

What SQL query from v$session can you run to show how many sessions are logged in as a particular user account?

3 6403

Why does Oracle not permit the use of PCTUSED with indexes?

2879

What would you use to improve performance on an insert statement that places millions of rows into that table?

TCS,

2 6051

What would you do with an "in-doubt" distributed transaction?

1831

What are the commands you'd issue to show the explain plan for "select * from dual"?

2186

In what script is "snap$" created? In what script is the "scott/tiger" schema created?

2397

If you're unsure in which script a sys or system-owned object is created, but you know it's in a script from a specific directory, what UNIX command from that directory structure can you run to find your answer?

1 3271

How would you configure your networking files to connect to a database by the name of DSS which resides in domain icallinc.com?

1 3415


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Un-Answered Questions { DB Administration }

When setting replication, can you have distributor on sql server 2005, publisher on sql server 2008? : sql server DBA

949


when we login sql editor using username and password then it says this error "could not resolve service name" then what can we do at client side.( here thing is tnsnames.ora file is ok till yesterday and worked well, but now it giving error.

1660


how can you implement fine-grained auditing?

1066


What is the default port no on which sql server listens? : sql server DBA

1083


In what script is "snap$" created? In what script is the "scott/tiger" schema created?

2397


what do you understand by fine-grained auditing?

1014


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

2404


How would you best determine why your MVIEW couldn't FAST REFRESH?

2293


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?

2397


what is grd?

1047


. 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?

2399


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.

2192


In which dictionary table or view would you look to determine at which time a snapshot or MVIEW last successfully refreshed?

2641


You have found corruption in a tablespace that contains static tables that are part of a database that is in NOARCHIVE log mode. How would you restore the tablespace without losing new data in the other tablespaces?

2743


What is the difference between dropping a database and taking a database offline? : sql server DBA

1013