File Name: oracle technical interview questions and answers .zip
There are a lot of opportunities from many reputed companies in the world. According to research, Oracle Applications Technical has a market share of about 4. So, You still have the opportunity to move ahead in your career in Oracle Applications Technical Development.
- Important Oracle Interview Questions with Answers
- Top 50 Oracle Interview Questions You Should Master in 2021
- Top 101+ Oracle Interview Questions and Answers
- Oracle Database Interview Questions
What is Oracle and what are its different editions? Answer: Oracle is one of the popular database provided by Oracle Corporation, which works on relational management concepts and hence it is referred to as Oracle RDBMS as well. It is widely used for online transaction processing, data warehousing, and enterprise grid computing.
Varchar can store upto bytes and varchar2 can store upto bytes. Both are differed with respect to space. RAW datatype is used to store values in binary data format. The maximum size for a raw in a table in bytes. Example is —.
Important Oracle Interview Questions with Answers
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. Each question contains their answer also. Its a good practice to go through all of these questions before attending the interview.
Are you preparing to attend an Oracle interview soon? Here are a few questions and answers you may find interesting. RAW data type is used in storing values in binary data format.
The maximum size of a RAW in a table is bytes. A BLOB data type is a binary string with a varying length which is used in storing two gigabytes memory. NULL value represents unknown or missing data.
It is used as a place holder or represented as a default entry indicating that no actual data is present. It aids in preventing changes to a view that would produce results not contained in the sub query. Varchar can store up to bytes and varchar2 can store up to bytes. They are differentiated by space. NVL Value, replace value. An alert is a window which appears in the center of the screen and overlays a portion of the current play. Hash Cluster is a technique used for storing the table to make it faster to retrieve.
It order to retrieve the rows from the table, apply the hash value on the table. SET operators are used with two or more queries.
The operators are Union, Union All, intersect and Minus. View is a logical table that is based on one or more tables and views. The tables which the view is based upon are called Base Tables and it contains no data. What is RAW datatype? What is BLOB datatype? What is the difference between varchar and varchar2 data types? What is the use of NVL function? NVL Value, replace value How do we get field detail of a table?
What is the fastest query method to fetch data from the table? What is the parameter mode that can be passed to a procedure? What are SET operators? What is a view? Expect this as the first questions, if you are a fresher. Prepare answer for an introduction about Oracle Question about Clusters Index in database.
This is an important section that you should prepare well. Go to mobile version.
Top 50 Oracle Interview Questions You Should Master in 2021
Welcome to Mindmajix - The leading global online training platform. There are a lot of opportunities from many reputed companies in the world. This course will help you to achieve excellence in this domain. SQL is a language used to communicate with the server to access, manipulate, and control data. Ans: Alias is a user-defined alternative name given to the column or table. By default column, alias headings appear in upper case. Ans: A Literal is a string that can contain a character, a number, or a date that is included in the SELECT list and that is not a column name or a column alias.
Top 101+ Oracle Interview Questions and Answers
Answer: Oracle Database is a relational database management system RDBMS which is used to store and retrieve the large amounts of data. Oracle Database had physical and logical structures. Logical structures and physical structures are separated from each other. Answer :Oracle database is the collection of datafiles,redologs and control files while Oracle instance is the SGA ,processes in the Memory.
Oracle Database Interview Questions
Have you prepared for your interview, can you answer these basic Interview questions on Oracle. It lets its users to retrieve and to store data in a way that multiple users can access similar data at the same time. Oracle achieves this with high efficiency. Many security checks are followed to limit access to authorized users only and to retrieve data in case of accidental data loss.
Explore Now! Oracle Interview Questions and Answers provided here are appropriate for both freshers and experienced candidates. By going through this questionnaire, anyone must be able to recognize the questions and explanations provided. All these questions will surely enable you to prepare for technical interviews and online tests which is conducted at the time of campus placement. Referring to the below question and answers, you will be able to get more knowledge on basic and advanced level concepts. Schema objects are tables, views, sequences, synonyms, indexes,databases triggers, procedures, functions, packages. What is a Table?
Oracle Database Interview Questions are the frequently asked questions in the interview process for database related job roles. Oracle as a database service provider to the industry is the leading vendor for Transactional systems, Data warehouse, enterprise grid computing, and in house legacy applications. Oracle as a database supports the Relational database concepts and features for maintaining the data transactionality. The Interview questions for Oracle database are related to SQL queries, concepts on stored procedures, functions, triggers, cursors, views, tables. The interview questions are also related to the administration, configuration and user roles for the oracle database and schemas. Also, the Oracle database version-specific dependency and features are part of the interview questions.