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Oracle Dba 3 Years Experience Interview Questions And Answers Pdf

oracle dba 3 years experience interview questions and answers pdf

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Our experts prepared these Oracle DBA interview questions to accommodate freshers level to most experienced level technical interviews. While a procedure does not have to return any values to the calling application, a function will return a single value.

Oracle DBA Interview Questions

Our experts prepared these Oracle DBA interview questions to accommodate freshers level to most experienced level technical interviews. While a procedure does not have to return any values to the calling application, a function will return a single value.

A package on the other hand is a collection of functions and procedures that are grouped together based on their commonality to a business function or application.

They are also used to pipeline information in an ETL process. Materialized views are objects that are reduced sets of information that have been summarized, grouped, or aggregated from base tables. They are typically used in data warehouse or decision support systems. PMON 10 What background process refreshes materialized views? The Job Queue Processes. Redo logs are logical and physical structures that are designed to hold all the changes made to a database and are intended to aid in the recovery of a database.

You could use Logminer or Streams 15 What does coalescing a tablespace do? Coalescing is only valid for dictionary-managed tablespaces and de-fragments space by combining neighboring free extents into large single extents. A temporary tablespace is used for temporary objects such as sort structures while permanent tablespaces are used to store those objects meant to be used as the true objects of the database.

Turn on fine grain auditing for the table. Partitioning is a method of taking large tables and indexes and splitting them into smaller, more manageable pieces.

These two Oracle utilities are used for loading data into the database. The questions here are related to UNIX but you should equally be able to answer questions related to common Windows environments. Read allows you to see and list the directory contents. Write allows you to create, edit and delete files and subdirectories in the directory. A symbolic soft linked file and the targeted file can be located on the same or different file system while for a hard link they must be located on the same file system.

Vmstat reports on virtual memory statistics for processes, disk, tape and CPU activity. Netstat reports on the contents of network data structures. Basically, set up disks, kernel parameters, and run orainst. Through the use of SEPS you can store password credentials for connecting to database by using a client side oracle wallet, this wallet stores signing credentials.

This feature introduced since oracle 10g. Thus the application code, scheduled job, scripts no longer needed embedded username and passwords.

This reduces risk because the passwords are no longer exposed and password management policies are more easily enforced without changing application code whenever username and password change.

Sequential read associated with index read where as scattered read has to do with full table scan. The sequential read, reads block into contiguous memory and DB scattered read gets from multiple block and scattered them into buffer cache. Is this compatibility issue? Read the toad user guide. You will get important information related to compatibility issue. In fact toad works with both 32 bit and 64 bit oracle server where as toad only work with 32 bit client.

If you need 64 bit client for other applications, you can install both 32 bit and 64 bit client on a single machine and just tell the toad to use the 32 bit client. Bigfile tablespaces can contain only one file, but that file can have up to 4G blocks. A latch is a serialization mechanism. It is used to gain access to shared data structure in order to latches the structure that will prevent others from modifying it while you are modifying it.

You know when you do some transactions; redo entries will be generated and accepted! So even you not backed up the UNDO tablespace, you have the redo entries through which you can recover or rollback the transactions. For optimal performance in most systems, the entire SGA should fit in real memory. If it does not, and if virtual memory is used to store parts of it, then overall database system performance can decrease dramatically. The reason for this is that portions of the SGA are paged written to and read from disk by the operating system.

This parameter cannot be used with automatic memory management or automatic shared memory management. This helps us to determine the best approach for converting the database characterset. J2EE Interview Questions. Teradata Interview Questions.

Top 20 Oracle DBA Interview Questions and Answers

There is a parcel of chances from many presumed organizations on the planet. In this way, despite everything you have the chance to push forward in your vocation in Oracle DBA Development. By this Oracle DBA Interview Questions and answers, many students are got placed in many reputed companies with high package salary. Same 30 Mins, We will apply the opatch for oracle binary only not for data. If not we will either create new indexes or can use hints to specify which indexes to use.

Some primary duties include integrating third-party software, migrating data to the cloud and correcting issues that arise during day to day activities. During a DBA interview, employers want to determine if you can satisfy these tasks and help the organization run smoothly. In a DBA interview, you are likely to be asked general questions you would get in other types of interviews to help potential employers get to know your personality and see if you are a good fit for their company. Here are some common questions you may be asked:. Prospective employers may also ask you these questions about your relevant experience and education to better understand your professional qualifications:. Interviewers ask these questions to gauge your knowledge of the subject, problem-solving skills and your personal and professional character.

oracle dba 3 years experience interview questions and answers pdf

Looking for Oracle DBA Interview Questions with Answers? If you're searching for Oracle DBA interview questions and answers for experienced professionals, Ans: The shared pool portion of the SGA contains three major areas: library.


Oracle DBA Interview Questions and Answers

30 DBA Interview Questions and How to Answer Them

Explore Now! These questions and answers are suitable for both freshers and experienced professionals at any level.

Oracle DBA Interview Questions

There are plenty of opportunities in many organizations in the world. So, you have the chance to push your career forward in Oracle DBA development. Tekslate offers Oracle DBA database administrator interview questions that will help you in achieving your dream job. If you would like to enrich your career in Oracle Apps with certified working professionals, then visit Tekslate - an e-learning marketplace: " Oracle Apps Technical Training " course. This course will provide placement oriented training with hands-on-real-time projects. Ans: The shared pool portion of the SGA contains three major areas: library cache contains parsed SQL statements, cursor information, execution plans , dictionary cache contains cache -user account information, privileges information, datafile, segment and extent information , buffers for parallel execution messages, and control structure. Ans: list archive log all;.

There are a lot of opportunities from many reputed companies in the world. According to research, Oracle DBA has a market share of about 0. This course will help you to achieve excellence in this domain. Oracle automatically maintains and uses indexes and when any change is made in the table data Oracle automatically distributes it into relevant indexes.

Here, we have listed the top 20 Oracle DBA interview questions for fresher and experienced candidates to clear their job interview efficiently. It is a database server, which manages data in a prearranged way. It permits users to stock up and recover related data in a multi-user environment so that the users can parallel access the same data. All this is proficient while delivering elevated performance. An index is an elective structure linked with a table to have straight access to rows that can be created to boost the performance of data retrieval. An index can be shaped on one or more columns of a table.

Explain the difference between a hot backup and a cold backup and the benefits associated with each. A hot backup is basically taking a backup of the database while it is still up and running and it must be in archive log mode. A cold backup is taking a backup of the database while it is shut down and does not require being in archive log mode. The benefit of taking a hot backup is that the database is still available for use while the backup is occurring and you can recover the database to any point in time. The benefit of taking a cold backup is that it is typically easier to administer the backup and recovery process.

Top Oracle DBA Interview Questions and Answers

This list includes characteristics of the Oracle database, roles of a Database Administrator, tools used for administering the Oracle database, comparing a cluster with a grid, the architecture of Oracle Grid Computing, and more. Many organizations are hiring Oracle DBA experts to meet their requirements and the needs and demands of their customers. In case you are looking for Oracle DBA interview questions, this is the correct place for you. What is Oracle?

Oracle dba interview questions and answers

5 Comments

  1. Arianne L.

    17.12.2020 at 19:01
    Reply

    Our Oracle DBA Interview Questions and answers are prepared by 10+ years exp professionals. answers are prepared by 10+ years experienced industry experts. Answer: You can start up a database with three devices.

  2. Sofia P.

    18.12.2020 at 23:01
    Reply

    If you're looking for Oracle DBA Interview Questions for Experienced or Freshers, you are at the right place. Patch set updates are published 4 times a year by Oracle and as you apply Ans. You can start up a database with three tools.

  3. Galatea G.

    19.12.2020 at 18:18
    Reply

    Answer: Oracle Database is a relational database management system RDBMS which is used to store and retrieve the large amounts of data.

  4. Chandler D.

    20.12.2020 at 06:54
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  5. Berangaria S.

    20.12.2020 at 18:53
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    check out awesome oracle dba interview questions and answers to succeed in any oracle Oracle DBA questions and answers for experienced professionals; Oracle Database 3. create database link connect to identified by using ”; Download of oracle dba interview questions and answers as PDF is also given below.

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