With the help of this, we can easily represent our database as a simple diagram which is called an entity-relationship diagram. It helps us to visualize our database, and gives us a conceptual view for it, also makes it easy to understand at high level. This ER diagram is used to represent the relation and data elements. Hadoop, Data Science, Statistics & others ER model consists of various components which are as follows
On this basis, we can easily create relations among backend code as well because we have to map our entity with the objects in code. DBMS ER ModelĮR model is the high-level data model which helps developers to understand the relationship among various tables based on the attribute. In the coming section of the tutorial, we will have closer look at the internal implementation and work in detail for better clarity and understanding. For example, we have an Oracle database which automatically creates the Er diagram for us once we are done with the table creation. It also supports various kinds of mapping among the tables.
ER diagram shows relationship by using different types of attributes which makes it easy to understand. ER diagram gives us the overview or we can say a high overview of our database. ER diagram in dbms stands for entity relationship, which helps us to understand the relationship between the different tables.