A database is a large collection of information, with a particular structure that the information follows, that can be sorted by specific parts of that data without jumbling together information from unrelated entries. It is similar to a table or a spreadsheet, but is much more powerful.
Putting your large amount of information in a database on your site makes it easier for your users to find what they need without having to sift through extra data. It also makes it searchable, so if your tables are very large, spanning multiple pages, they can be searched and only the relevant entries will be pulled up. This saves valuable time for your users. For instance, if your business has a very large staff, and clients need to be able to contact a particular person in your staff, they might want to look in a directory for that person’s contact information. Putting your directory into a table or simply listed on the site, with each person’s name, title, department, phone number, email address, and any other pertinent details can quickly become a daunting thing to look through. However, putting it into a database makes it much more manageable. If your client can remember the name of the person they need, they can search for it. If they can’t remember the name but remember the department, they can sort by department and narrow it down from there.