Oracle Database: main characteristics of Oracle DBMS

The rapid development of the information society entailed the development of various technologies designed to solve certain problems. One of the priorities was the need to design new ways of storing and processing large amounts of data using hardware.

The solution to this problem was the creation of databases (DB) as a means of storing information and database management systems (DBMS) as a way of processing.

What is DBMS

A database management system is a collection of software tools used to create databases, as well as to view, search and update stored information in them. The management of data sets is carried out with the help of a set of linguistic and software tools. In practice, DBMS, as a rule, is used in the creation of information systems.

To date, there are several options for database management systems that distinguish both the functionality and requirements for the computer. As examples of modern DBMS, you can bring Oracle Database, which will be discussed later, MySQL, Access, SQL Server, Fox Pro.

Despite the variety of databases, they are all divided into two types: multi-user and personal.

Multiuser systems

Such platforms are designed to perform complex tasks on powerful computers. In this system, many people work in parallel, so it consists of several elements, more precisely:

• A kernel in memory;
• Server;
• An unlimited number of client programs that perform the tasks assigned by users.

In such a system, one main computer is used, which is used as a server and stores data and the kernel. This solution provides comfortable access to the database for clients. In addition, in such a DBMS, error correction is greatly simplified. High data transfer speed makes the work as efficient as possible. Clients can communicate with the system through any network. These are just some of the advantages of multi-user databases, which include Oracle Database.

Personal systems

This type is designed for smaller tasks. The considered systems are placed on personal computers and interact with one user. The database and the program itself are stored in the memory of one disk.

To date, developers of such systems have added the ability to function in a networked environment. However, in this case, the characteristic of each workplace is extremely important. The data is located on the server; All clients are required to install an application program and a copy of the system itself. But this solution causes problems when changing the data. In this case, access to the database also becomes more complicated. Each user works separately, and errors in his program are not visible to other clients. If you do not block them, then simultaneous access will be problematic.

Learn more about Oracle

What is the Oracle Database? For many years, the Oracle database provides users with maximum comfort, security, high speed and reliability. The system shows itself perfectly, and each of its features is important to the client. Most large-scale information systems can not do without the use of this database.

Technologies are developing very quickly, and new requirements are constantly being put forward for such products. Storage and interaction with data at the proper level provides several systems. But the Oracle database remains the leader, thanks to continuous improvement.

Main features of the system

This DBMS is a set of software components, the capacity of which is sufficient for organizing a project of any complexity. Properly developed scaling tools allow you to store an unlimited amount of information. Efficiency of work provides an opportunity to interact with data to any number of clients. Only hardware resources can become a limitation. Developers implemented all the best server technologies in the system, making work via the Internet an ideal one.

An important feature is the multi-platform Oracle. Linux, Windows and any other operating systems will allow to effectively organize the database. It is worth mentioning the migration policy. The transition to the updated version is organized extremely conveniently, a special program will help to transfer data from other systems.

What DBMS options are there?

Developers provide users with four options for the system:

• Standard Edition;
• Lite;
• Enterprise Edition;
• Personal Edition.

This classification is not only found in Oracle Database. Versions are more similar to each other. The main differences are in the functional part, for each option there are unique options.

Standard Edition

Extremely popular version, the functionality of which is somewhat limited. Most often it is used when creating systems for a small number of clients. This is the best option for a workgroup, a small company, etc. But in large organizations there is also room for Standard Edition when it comes to remote branches. The price of this version of Oracle Database is reduced, while the existing capabilities will be enough to work effectively.

Oracle Lite

The simplest and simplest version of the system. It is best used on mobile devices, laptops, etc. Convenient synchronization of information is achieved through the use of common interfaces. Application development is carried out using standard tools.

Enterprise Edition

The best version of Oracle DBMS with all the existing features. This system has unlimited capabilities and allows you to organize absolutely any project. In this case, everything depends only on the powerful hardware. The version has collected the best technologies of storage and interaction with the information. The database server will be able to work productively without stopping, due to its huge scalability. A wide toolkit helps to reserve data and, if necessary, restore them. Valuable information will never be lost.

Personal Edition

This Oracle Database client is perfect for personal use or training. Functionality will be enough for creating programs and their further use on several versions of Windows. They play an important role, since in NT or 2000 all options are available, and in 95/98 / ME options are limited due to the features of the operating system.

Features of version 11g

Users often had problems installing this database, and in version 11g, this process was greatly simplified. In addition, it became more convenient to carry out not only the initial, but also the specialized setting. The system will be more effective if it is optimized for the required task, and in Oracle Database 11g this aspect is competently worked out.

Scaling mechanisms are also improved. By adding new cluster nodes, you can achieve incredible performance in server speed and productivity. Now you do not need to stop the programs or completely rewrite them. Stable operation of applications is not violated even with the failure of individual nodes.

How to get DBMS?

On the official site you can download the required version of the system, and this will always be the most competent solution. The download page will only need to examine and confirm the license agreement, and then select the operating system.

The last step is authorization on the site. If there is no profile, you can easily create it and log into the system. The presence of an account is not only mandatory, but also useful. In addition to the download page of the DBMS, users will have access to other interesting features.

Installing Oracle 11g

How to install Oracle Database 11g on Windows 7? The DBMS is packed into an archive, which, after downloading, needs to be unzipped.

Then you need to do the following:

1. In the DISK1 folder, open the installation file named Setup.exe.
2. Go to the welcome screen.
3. Agree with the license.
4. Choose a place to install the program (but it's best to leave the path as standard).
5. Create a system administrator account.
6. Check the indicated data and confirm it.

The installation is as simple as possible, and all actions are intuitive. It's worth noting that not only on Windows is it so easy to install a database from Oracle. Linux and all other operating systems will also not cause problems, since the deployment process is more identical.