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Want to grow your career as an oracle database administrator but don’t know how to learn oracle databases? Or if you are looking for an oracle tutorial for beginners this DBA tutorial is the right propellant that you need to make your dream job come true!!
Over the next five years, global is projected to reach180 zettabytes. Organizations are now more dependent on effective data handling and that's the reason why the Oracle database administrator job is really going very high availability day by day.
If you want to start your career as an Oracle DBA then you have reached the perfect destination. In this Oracle database tutorial guide, we will help you understand what is oracle DBA? What Oracle DBA concepts that you need to know to kick start your DBA career, and help you gain a better understanding of Oracle Database administrator roles and responsibilities of the database administrator.
This oracle database tutorial has been compiled under the guidance of DBA experts to ensure your successful entry to the Oracle DBA Career. Moreover, if you are interested in advanced Oracle dba concepts and willing to learn Oracle database then you should opt for Oracle DBA certification and training courses from JanBask Training that are 100 percent job-oriented and taught by experienced industry experts & database professionals only.
A Database is the structured collection of organized information that can be accessed, modified, or analyzed efficiently. If we talk about simple software applications like Word, Excel, or Spreadsheets then they could not handle voluminous data efficiently. Here, we need a secure storage system where data can be stored or retrieved quickly whenever required.
To make this approach feasible, Oracle discovered a Relational Database Management system (RDBMS) to store, retrieve or modify information more efficiently and securely. The RDBMS system delivers high performance and maximized data concurrency that boosts up the overall productivity of the multi-user database environment. It can be termed as RDMS or simple Oracle Databases. Oracle DBAs (Database Administrators) use specialized software programs to store or organize information in a mashed-up way.
Oracle database administrator is the one who is responsible for organizational data management. A database administrator is involved in applying the knowledge and expertise of database management to handle huge volumes of organizational data.
The primary responsibility of the Oracle database administrator is to ensure secure access of data only to authenticated users. The database administrators work closely with the other different departments and ensure the development of the database that runs smoothly and efficiently and meets all the business requirements successfully.
An Oracle database administrator should also have the problem-solving capability and have expertise on the relevant databases and technologies where he will be able to handle, manage organizational data requirements and communicate effectively with the techies and non-techies in the organization. They should have good communication skills and they should know how to work on networks and storage technologies.
Oracle database administration is not managed by a single person but the Company generally hires a group of specialists to complete the administration work. Oracle database architecture works on grid-based computing that is highly suitable for enterprises and large-sized organizations.
Let us have a quick look at the physical files that are used by Oracle Database to store voluminous data.
In this section, we will discuss all important terms that are necessary to understand before you start working on the Oracle database. This section covers almost all terms and parameters that are used frequently in Oracle Databases.
Objects in the Oracle database are used to perform a variety of functions. Here, we will discuss the common objects that can be used in our day-to-day environment while working with Oracle databases.
Tables are the common objects that are used as an integral part of the database. Once a table is created, data should be stored by following the basic rules like data types, values, etc. Table compliance of all-important rules is always easy to access and modify with simple SQL commands.
If the database administrator wants to limit the access of data then the view concept comes into the picture. Here, different views of data can be defined based on users and Company requirements.
Take an example, where you want to share only a limited amount of information with another organization then you need to mask the rest of the information with proper SQL commands.
You are free to list the important modules only that you want to make visible in front of others. The modules that are not listed will not display and it will be hidden from the users. Views were introduced to enforce a flavor of security and it is frequently used worldwide.
It allows users to refer to objects that are stored somewhere else in the same or other databases. These objects are handy objects that can be used with alternative names in the table and you just need to set a pointer to the real table.
This is a memory management technique where the same objects can be reused and it optimizes the overall storage space for database objects. The concept has been used by database programmers for decades to increase the throughput of the application code.
These objects promote the encapsulation of code that could run either implicitly or explicitly to perform some predetermined task. The best part is that stored objects can be reused again and again whenever some action is required. It ensures consistent performance and secure processing together. They can be further divided into procedures, functions, and packages to declare constants, variables, and cursors for exceptional handling.
Oracle database is one of the most highly preferred databases in the organization. There is a high need for database administrators who are involved in implementing and performing the database operations, meeting organizational and customer database requirements.
Most of the organizations are looking forward to individuals who have the expertise in Oracle database administrator(DBA). Oracle database administrator is one of the prominent roles in the field of database management, which is among the most rewarding career opportunities in the current times. Hence, We recommend you to go through this Oracle Database Tutorial, also get professional training and certification in Oracle to attain a prosperous oracle database administrator career.
Hope you enjoyed reading this Oracle tutorial for beginners. In this blog, we discussed all important aspects and the parameters that are necessary to understand before you start working as an Oracle Database administrator.
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Rashi is the originator and primary contributor to this blog. With fact-dragging research and a tech-savvy approach, Rashi has been helping digital learners with quality content at Janbask Training.
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