Types of databases
How do you decide on the structure of your database? What tables should it contain? How should they be linked?
The database stores data needed for specific purposes and work processes; therefore it has to support the business requirements associated with them.
Data models are built during the analysis and design phases of a project to ensure that the requirements for a new application or for re-engineering a legacy application are fully understood.
A data model can be thought of as a flowchart that shows the relationships between data. The Entity Relationship Diagrams (ERD) allow to visualise those relationships.
Next, let’s look at the components and concepts related to ERD: entities, relationships, and cardinality.
When you’re ready, select Next to continue.
This first Course gives an overview of the five main database types and the components and concepts related to Entity Relationship Diagrams.
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