![]() Let us understand this by taking an example of a bank keeping details of its customers and their transactions. But as the size of the data grows, it becomes more and more difficult to handle this tabular data (because of its size). This format has its advantages like the relevant data is easy to find and it’s fast to fetch results. One of the most popular ways is storing all the information in one worksheet or table (basically 2-dimensional format, which has dimensions as ROWS and COLUMNS). This information can be stored in many possible ways. Introduction to Relational DatabaseĪ database is simply a set of related information. This is an integral and unavoidable step of Data Mining and Data Preparation.īut before we go forward, Let me explain what is a relational database, and how do they differ from other forms of dataBase. In the age of relational databases, Joining and Merging tables is a necessity. ![]()
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