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Record Based Data Model - Coggle Diagram
Record Based Data Model
Hierarchical Model
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tree data structure is used. a parent entity, and its child entity can be identified
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Advantages of Hierarchical Model –
Simplicity, Data Integrity, Data security, Efficiency, Easy availability of expertise.
Network Model
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the model data are represented by collection of records. In this, relationships among the data are represented by links.
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Advantages of Network Model -
Simplicity, Data Integrity, Data Independence, Database standards.
Relational Data Model
uses tables to represent the data and the relationship among these data. Each table has multiple columns and each column is identified by a unique name.
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Advantages of Relational Data Model
Structural Independence, Simplicity, Ease of designing, Implementation, Ad-Hoc query capability.