What is database?

A collection of information organized in such a way that a computer program can quickly select desired pieces of data. You can think of a database as an electronic filing system.

Traditional databases are organized by fields, records, and files. A field is a single piece of information; a record is one complete set of fields; and a file is a collection of records. For example, a telephone book is analogous to a file. It contains a list of records, each of which consists of three fields: name, address, and telephone number.

To access information from a database, you need a database management system (DBMS). This is a collection of programs that enables you to enter, organize, and select data in a database.

What is Oracle?

The Oracle Database is a relational database management system (RDBMS) produced and marketed by Oracle Corporation. Oracle is made up of a set of processes running in your operating system. These processes manage how data is stored and how it is accessed. This program runs in the background, maintaining the data and figuring out where it should go on the hard drive.

What You Should Already Know To Learn This Software

Before you continue you should have a basic understanding of the following:

• SQL-It is a programming language which is used to write queries/codes in database for required applications

Learning SQL offers the essential skills that allow developers to write queries against single and multiple tables, manipulate data in tables, create database objects, and query meta data.

In addition, the advanced features of SQL in order to query and manipulate data within the database are taught. Advanced querying and reporting techniques are explained.

• PL/SQL is the another step to learn advanced programming
• Forms/Reports Development-The forms and reports enable to build applications in Oracle

Why Oracle?

No business can run without data. so where there is data there will be a database. So Oracle has a very good scope in every industry because database management is now a days issue of much concern and oracle is one of the best vendor for it and have a very large market share also. Oracle is a market leader in database sector and it is the most extensively used database products because of it's reliability. Quality Oracle DBA's are traditionally difficult to find and expensive. Since it is an expensive product it pre-qualifies employers for you. Mostly the  larger or established companies use it and they have to afford the staff to support it. This is a good long term career that provides job opportunities almost everywhere in the world.

Scope of Oracle

• Enterprise management
• Database management
• Health care industry
• Manufacturing industry
• IT industry
• Datawarehousing
• Datamining
• Business report generation
• Integrating technology and business

Eligibility

Any undergraduate can aquire Oracle training/certification

What is Data warehousing?

Data warehousing is a technology for reporting and analysis of data.  This data can be used for online analytical processing(OLAP), market research and decision support The data stored in the warehouse is uploaded from the operational systems. The data may pass through an operational data store for additional operations before it is used in the DW for reporting.

A data warehouse maintains its functions in three layers: staging, integration, and access.

Staging is used to store raw data for use by developers.

Integration layer is used to integrate data and to have a level of abstraction from users.

Access layer is for getting data out for users.

Data warehouses can be subdivided into data marts. Data marts store subsets of data from a warehouse.

However, the means to retrieve and analyze data, to extract, transform and load data, and to manage the data dictionary are also considered essential components of a data warehousing system. Many references to data warehousing use this broader context. Thus, an expanded definition for data warehousing includes business intelligence tools, tools to extract, transform and load data into the repository, and tools to manage and retrieve data.