Interview questions for oracle dba

Oracle DBA Interview Questions

Where is default location of this file? How can you compare a part of the name rather than the entire name? Main configuration files in Oracle Apps Web Server are httpd. Who is responsible to update the indexes? So we will Interview questions for oracle dba try to put control file in a safe and stable place.

If the database must be up and running 24 hours a day, seven days a week, then you have no choice but to perform inconsistent backups of the whole database. What are the several tools for interacting with the oracle database using sql?

The answer to this question is critical when evaluating a DBA candidate. This is rather a less used tool for starting up a database but it is possible to startup a database from Recovery Manager command line.

Donald Burleson Donald K. We see that Oracle instances are becoming consolidated onto large server with 32 and 64 CPUs, and as a result less DBA staff is required.

This parameter specifies the maximum number of sessions that can exist at the same time using shared server connection. Oracle Database is a relational database management system RDBMS which is used to store and retrieve the large amounts of data.

What are the advantages of control file? Learn how to manage tablespace, datafiles, undo data, datafiles, Parmater File. In the Oracle database program, the first set of contiguous blocks, set up automatically when a segment is created, is called the initial extent. Even if the database is idle, there is no guarantee that database will not write anything to files during snapshot.

How would you accomplish this? There are two methods to accomplish this: JVM log location is defined in java. Many DBAs, by virtue of their high pay and product-specific knowledge, tend to think of developers as underlings; in some cases, DBAs view developers with outright contempt, believing their queries to be naive.

In RAC, we have one set of datafiles,controlfile and redo logs while instance on one ore more boxes accesses the same database 3 What is a Tablespace?

That is why employers like to hire Oracle DBAs who also have skills in computer science, information systems, or business administration. Enterprise service at higher cost. Every instance of an Oracle Database has an associated redo log to protect the database in case of an instance failure.

These tablespaces will be used for holding system data. Describes how to properly address technical and non-technical questions during the job interview.

Top 40 oracle dba interview questions and answers

Any change, which will be made to a data file, is first written to online redo log files. However in batch installations, this will take long. I would specify an undo tablespace.

Database will have to perform instance recovery next time it is started.

Job Interview Questions & Answers

When it receives a result, they deliver the result to the relevant client. This determines whether the sequence will start from the beginning once it reaches the end. The Grid Management feature of Oracle Enterprise Manager 10g provides a single console to manage multiple systems together as a logical group.

Remember, knowledge of Oracle database systems is not enough. Explain what each digit shows. How can you determine which shared memory and semaphores are associated with which instance? You can use ad utility adlicmgr to licence product in Oracle Apps. In this script I would specify:Looking for Oracle DBA Interview Questions with Answers?

Here we have compiled set of questions from the students who have attended interviews in Fortune companies. Oracle DBA Tutorial In this Oracle DBA tutorial you will learn Oracle DBA and fast-track your career in database administration.

Through this tutorial you will study the installation of Oracle database, how to do database backup, restoration maintenance and recovery, understand performance tuning and Real Application Clusters (RAC).

A number of Oracle professionals mistakenly believe that the Oracle DBA skills are purely technical. In reality, the Oracle DBA must be an "ace" of all IT functions, because he or she has ultimate responsibility for overall database design, database implementation, backup, and recovery.

Explore Oracle DBA Tutorial and Oracle DBA Interview Questions. Oracle DBA Scripts, Oracle DBA Articles and performance tuning tutorial. Become Oracle DBA by following simple 10 steps tutorial. Know more about Oracle DBA certifications.

Access FREE PL/SQL Interview Questions. Here is a list of 60 interview questions about Oracle Database with their answers. The list contains questions useful for basic, freshers and experienced oracle professionals.

Top 50 Oracle Interview Questions and Answers last updated August 11, / 4 Comments / in Database / by admin 1. Difference between varchar and varchar2 data types?

The DUAL table is a one-column table present in oracle database. The table has a single VARCHAR2(1) column called DUMMY which has a value of ‘X’. What .

Interview questions for oracle dba
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