What is data?
Data or Data - In simple words, data can be events related to any object being considered. For example, your name, age, height, weight, etc. are some data related to you. An image, image, file, pdf, etc. can also be considered data.
What is a database?
Database - A database is a systematic data collection. Database supports storing and manipulating data. Database helps to manage data easily.
A few examples of databases such as: An online phone directory will certainly use the database to store data related to people, phone numbers, other contact details, etc. Your electrical service provider is clearly using the database to manage invoices, customer-related issues, to handle error data, etc.
Let's also consider Facebook. It needs to store, manipulate and present data related to members, their friends, member activities, messages, advertisements and more.
What is a database management system (DBMS)?
Database management system (DBMS) is a collection of programs that allow users to access databases, manipulate data, report / perform data. It also helps to control access to the database.
Database management systems are not a new concept and were first implemented in the 1960s. Warehouse integrated data (IDS) of Charles Bachmen is said to be the first DBMS in history.
Over time, database technologies have evolved greatly while the use and expected functions of databases have been greatly increased.
Types of DBMS
There are 4 main types of DBMS:
- Hierarchy - this type of DBMS uses a "parent-child" relationship of data storage. This type of DBMS is rarely used today. Its structure is like a tree with nodes representing records and branches representing fields. The windows registry is used in Windows XP is an example of a hierarchical database. Configuration settings are stored as a tree structure with nodes.
- Network DBMS - This type of DBMS supports many relationships. This often results in complex database structures. RDM Server is an example of a database management system that implements a network model.
- Relational DBMS - this type of DBMS defines database relationships in tabular form, also known as relational. Unlike network DBMS, RDBMS does not support many relationships. Relational DBMS usually has predefined data types that they can support. This is the most common type of DBMS on the market. Examples of relational database management systems include databases MySQL, Oracle and Microsoft SQL Server.
- Object-oriented DBMS - This type supports storing new data types. Data is stored in object form. Objects are stored in a database with attributes (such as gender, age) and methods that determine what to do with the data. PostgreSQL is an object-oriented relational DBMS.
The importance of database in the website
The main role of the database is to store and display updated information in the design web. Registration sites, discussion forums and retail commerce websites are examples of web applications that rely on a powerful database component:
- Functions: Database applications used to search, sort, filter and present information based on web requests from users. Databases can also contain code to perform statistical and mathematical calculations on data to support queries sent from web browsers.
- Features: Database grants and restricts access to data based on criteria such as username, password, region or account number. Databases also enforce data integrity by ensuring that data is collected and presented in a consistent format.
- Effect: Dynamic web pages display updates on web pages when the database is updated by the server or when users submit information using web forms. The database automatically updates web pages, eliminating the need to manually update the HTML code on individual pages.
Advantages of database-based web design
Why should you design a web based database controller? Here is the reason:
- Easier and faster to update content. A few clicks are all webmasters need to update content. Changes are made almost in real time.
- Ideal for an ecommerce web design where different products need to be added, prices change and vendor referrals.
- No HTML knowledge or expertise is required to change content on the site.
- Highly scalable: Every business grows over time and a database-based website easily expands to expand. Graphic, layout or interactive changes can be made at any time.
- Minimize errors: Fix manual data entry issues, data-based websites make it easier to limit errors and improve user experience.
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