A database is a system in a computer that allows large amounts of information to be organised efficiently. In large companies and businesses where there may be thousands of customers at any one time, it can be a challenge to ensure that all of the records about each and every client are accurate and up to date. However, through the clever use of a database, all of the necessary information can be placed into a table and organised. For example, if you needed to know the age, address, name and telephone number of 500 people, inputting all of these vital statistics into a database will save time and money in the future.
Most databases can then be searched. For example, if you are looking for Joe Bloggs, you would be able to scour the database until you found a relevant entry. If there was more than one Joe Bloggs, then you would refine your search, and this is where you try to restrict the results based further. One way you could do this would be if Joe was born in March 1980. By searching for men called Joe Bloggs who had a birthday in the 1980s, this would guarantee that you found the right person. As you can see, databases are useful for a variety of purposes.
They keep us safe and secure, with police using databases to keep records of all of the people who have ever committed a crime. In addition, whenever we get ill, hospitals have a database of all of our allergies and previous illnesses to ensure they can make an accurate diagnosis.
The one downside to databases can be if they are lost by accident, and this is why backing up has become so important. When you back up, you ensure that there is more than one copy of the database should a computer break down.
A database is a collection of related data stored in an efficient and compact manner. The word "efficient" means that stored data can be accessed very easily and quickly. Similarly, the word "compact" means that stored data takes up as little space as possible. In the above definition of database, the phrase "related data" is used. It means that a database contains data or information about a particular topic such as:
(I) Database of employees that contains data of employees of an organization or department.
(ii) Database of students that contains data of students of a college/university etc.
A database holds related data as well as description of that data. Due to this reason, a database can also define as a self-describing collection of integrated records. The description of data is known as the system catalog or data dictionary or metadata (It means data about data).
For example when a table of a database is designed, the data type, size, format and other descriptions of fields are specified. This is an example of metadata, which describes the properties of data to be stored into fields of table.
The data of any organization is its integral part. The data is very important for developing new products and their marketing. The data must be accurate and available when needed. This is the reason that all organizations must organize and manage their data into databases. The databases are used for variety of purposes in an organization.
A database is a collection, an organised collection of information and used in electronic form , it is an example of an electronic filing cabinet.
The advantages of using database are that information can be quickly recalled or updated. They are a good resource for searching and sorting information very quickly and very accurately.
A data base consists of records and information on any subject which is collected together and each element is called a field, for example; names, addresses, ages, occupations.
Each set of fields make one record. The records are stored in the fields; for example Surname, First Name, Age, Occupation, Address.
The type of data being used - think about this carefully as you may use both text and numerial data. Numerical data and currency fields can be used. If text and numbers are used these are called alphanumerical fields.
databases can be searched, sorted and re-arranged in both Excell and Access.
A database is an organized collection of data and the records, which is stored in a system, usually a computer. The organization of data is achieved by structuring it according to the model of the database. There are three main types of database models which include relational model, network model and hierarchical model.
The functioning of the database is based on the software which is known as database management system. It facilitates the process of organization of data according to the model of the database. For accessing the database the query language is used which is determined by the type of model.
Databases are used by a number of organizations for proper handling of their data. Each company has its own database which has the functions according to the needs of the company.
A base in which all computerized information is stored and kept,and because you delete something it is not gone if it is a cause for prosecution and it was something done on your computer, the prosecutor can find it and pull it up along with the help of a computer engineer...good luck
Often abbreviated DB. A collection of information organized in such a way that a computer program can quickly select desired pieces of data/information.
A database is a logically coherent collection of data with some inherent meaning that represent the some aspect of a real world data. It has designed , built and populated with the data for a specific purpose.
A database can be defined as collection of related data. Here data refers to known facts that can be recorded and that have implicit meaning. I think I should clear it with an example. Consider the names, telephone numbers and addresses of your friends, colleagues and other peoples whom you know. You may have store this data in your computer's hard drive by using any software such as Microsoft Excel or Microsoft Access. You may have recorded this data in an address book.
This is a collection of related data with an implicit meaning and hence it is a database. This is quite general example of database. For example, we may consider the collection of words that make up this page of text to be related data and hence to constitute a database. However a common use of the term database is somewhat restricted.
A database has the following implicit properties.
* A database represents some aspects of the real world, which is called miniworld or it is also known as universe of discourse. Whenever a change occurs in this miniworld then these changes are also made in the database.
* When we design a database then we put data in database by thinking for any specific purpose.