There’s no reason to look and edit a particular table – the database will automatically structure the information. Now, whenever you need to assign new information to the same customer, you just have to enter a specific key. Non-relational databases use columns and rows to enter types of data and its values and identify objects with keys.įor instance, if you need to remember the customer’s logic, you identify the object (customer) with a key and assign data to it. Relational versus non-relational databases are more flexible because the data on the object isn’t limited to the same table. A relational database uses Structured Query Language. So, a relational database is a database that forms relations between tables that store data on specific entities. A foreign key is then connected to a primary key. To connect one table to another, foreign keys are used. This is where the name of the database type is derived from.Įach table of the database has a specific key that identifies the data in the table. Then, connected tables form relationships. When an additional detail is added to a table, a new table is created. For the database to work, a relational database requires two tables: one for customers, another one for clients. You can’t store data on customers and clients in the same relational table. Each column accommodates a data point (a category of information that will be stored), and a row represents the value for that category.Įach table can store data only for one object. Relational databases store information with columns, rows, and tables.

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