One of the most important tools that any web developer or consultant can use are databases, it is almost impossible to create a multipurpose website without one. A database allows a website to have many applications, first and foremost a simple blog such as this would store each individual blog post in a database, rather than having multiple HTML pages. Web developers can also use a database to create a log-in system, storing usernames and passwords in an encrypted database, or use it to store images uploaded by users and so on.
Probably the most popular database language in web design is SQL (Structured Query Language), it is a simple and intuitive language with many powerful applications. It allows the creation of databases, tables, queries and so forth, and has everything required to create a comprehensive database. There are far too many uses of databases in web development to list here, and I'm sure the list would eventually bore most people, but a web developer or consultant would be remiss to not take every advantage they could.
Probably the most popular database language in web design is SQL (Structured Query Language), it is a simple and intuitive language with many powerful applications. It allows the creation of databases, tables, queries and so forth, and has everything required to create a comprehensive database. There are far too many uses of databases in web development to list here, and I'm sure the list would eventually bore most people, but a web developer or consultant would be remiss to not take every advantage they could.