Thus, we’ve put together a list of free ER diagram tools that will help you construct a relational and logical structure of a database. Entity-relationship diagrams or ERDs provide a visual way to understand the relationship between entities, which in other words, a container of information. Surely, you will find lots of information in a database which is why it can be a bit difficult for one to analyze the elements at a glance. As we know, a database is a collection of where all data of a system are stored.
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