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Database modeling is helpful in showing the logical construction of a database that includes the constraints and relationships which determine the method in which data can be preserved and accessed.

Types of Database Model

Though the Relational Model is highly used, you will come across other models too, like:

Hierarchical Model – This model does organize data into a structure which resembles a tree. It has a single root and here, other data is connected. The hierarchy begins from the data “Root” before expanding similar to a tree, thus, child nodes get added to the parent nodes. The child node will possess only one parent node and this model describes numerous real-world relationships, such as recipes, index of the books, etc.

Network Model – It is considered an addition to the Hierarchical model and here, the model data gets organized similar to a graph. Again, it is permitted to have parent node which is more than one. In a network model, model data happens to be more related because relationships get created here. People find this data to be more related, and so, it becomes easier for them to access this data. They also use this model for mapping many data relationships.

Entity-Relationship Model – In the entity-relationship model, relationships are developed through the division of objects of interests into entities. Its characteristics are divided into attributes and various entities are connected through the use of relationships. This model turns out to be excellent for designing a database which can be transformed into tables.

Relational Model – In relational model, data becomes organized in two-dimensional tables, but relationship is continued through the storage of a common field. E. F. Codd introduced this model in the year 1970 and since that time, it is hugely used as one of the hugely used database model. The fundamental structure of data becomes tables in relational model and all the info connected to a specific type gets preserved in rows. So, tables are also called relations in this model.

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Characteristics of Database Modeling

When it is managing information, then it means taking good care of it so that it can do its job for us. Again, it also turns useful for the jobs that people perform. Through the usage of a DBMS, the info that people accumulate besides including to its database doesn’t remain confined to accidental disorganization. It turns more integrated and accessible with the remaining of their work. So, managing information through the use of a database permits people to turn strategic users of those kinds of data that people have.

People are habitually needed to re-sort and access data for different uses and some of them comprise the following:

• Forming mailing lists.
• Recognizing different needs of the clients.
• Generating the list of chosen news stories.
• Writing management reports.

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