Second Trimester Notes _ RDBMS
What is a Database? It is often said that we live in an information society and that information is a very valuable resource (or, as some people say, information is power). In this information society, the term database has become a rather common term although its meaning seems to have become somewhat vague as the importance of database systems has grown. Some people use the term database of an organization to mean all the data in the organization (whether computerized or not). Other people, use the term to mean the software that manages the data. We would use it to mean a collection of computerized information such that it is available to many people for various uses. Definition - Database A database is a well organized collection of data that are related in a meaningful way which can be accessed in different logical orders but are stored only once. The data in the database is therefore integrated, structured, and shared. The main features of data in a database t...