What is a database, how does a search engine work ?

A collection of data that can be found using categorized procedures are called a database. The amount of information is infinite but with a database it’s organized. Commands such as: OR, AND, and NOT serve as three main keywords that helps narrow down your search to relevant links on what you are searching for. Other options that can be used are Hierarchies. Hierarchies help by filtering out the context of a phrase avoiding confusion on the meaning of the keyword.
Most websites receive traffic from search engines through generic category keywords and branded keywords. This all varies depending on how you spelled out a word and the language that was used. The ideal way to get more traffic is to find what term people use most to search the website, and include that word in the site for more traffic.