Oracle is one of the leading databases in the market providing a variety of dbms solutions such as Oracle Enterprise Database11g and Oracle PeopleSoft. A major advantage of using a relational database management system (or just called a “DBMS”) is that you will not need to understand any technical information about the server, database, application code or anything else. The data is just put into an easy to understand format, which is then manipulated with simple SQL or command line interface. A professional database administrator makes use of various tools such as a data extraction tool, an object-oriented language (ODL) manipulation tool, a data warehouse tool, stored procedures along with many others to provide database administration, database security and reliability.
The main aim of any database administrator is to provide an easy user interface for both development and testing. The designing part ensures that all the objects in a database are clearly defined, while the development ensures that they behave as expected. When it comes to the designing stage, developers identify the database schemas and extract the relevant information from the source documents. The final step is to define the database tables, which will include user-defined tables and fields.
Every database has multiple tables associated with it, which are used by applications to store information. These tables are known as RDBMS (relational database, transaction database and object database). There are many different types of RDBMS available for organizations today, which are based on different levels of complexity and reliability. These different types of RDBMSs include:
The most simple type of database is the object-oriented model, where information is stored in tables and the user accesses the data within them through an object-oriented interface. Some RDBMSs make it easy for users to access data directly by means of an interface, without opening any files or connecting to any databases. This way the database is much more flexible than a traditional database. However, an object-oriented model is the least reliable of all the types of RDBMSs, and even the best ones still face the problem of poor performance when faced with heavy user traffic.
Another popular choice for an RDBMS is the distributed databases. In a distributed database, computers are linked together via a network, so that the same information is not kept in just one place. Distributed databases are more reliable than the object-oriented models because of the distributed nature of the application data models. They are usually more flexible than the traditional RDBMS because they can accommodate any size of application and provide full integration with the operating system. These systems can also be scaled up and down very easily, taking up less storage space than traditional database servers.
Last but not least, we come to the traditional, single-table RDBMS. The primary benefit of this type of database system is the ease of maintenance and its flexibility, since a new feature can be added at any time. The main drawback is that it can be expensive because of the complex data structures and the time consumed in updating them. If the number of users accessing the database increases over time, the cost of maintaining the information will become greater.
Again, as we can see, the key benefits of DML (data warehouse management systems) have been around for a long time already and they are far from becoming obsolete. DML is not dead though. Some industry experts feel that it will eventually replace traditional database management systems, but for now, these experts are quite high on the efficiency it offers and agree that no major disadvantages appear to be involved. This means that you should seriously consider a switch to a good DML solution sooner rather than later, especially if you operate a large and critical enterprise where the security, reliability, and performance of your data is extremely important.
