First of all, the type of database you want to create depends upon the requirement of the client or the software/front-end. Before creating a database, you need to specify about the tables or a data which will be required to create it. For an example, if your client wants a database of customer information, so to create a database for that, you need to know about the details of that particular customer, including his/her name, contact, address, item purchased, the price of the purchased item, etc. Moreover, you will be in need of a particular platform to create a database and there are various platforms which can help you to create it such as Oracle, MySQL, Microsoft Access, etc.