Disclaims:
Always study and research the information here first before use! UAYOR!
- A database is form by a set of related tables
- All data is represented as tables only, there is no other way the data can be viewed
- A table is a logical grouping of related data in tabular form
- Table also known as relation or entity
- Tabular form also known as rows and columns
- Each row describes an item (person, place or thing)
- Each row contains information about a single item in the table
- Row also known as record or tuple
- Each column describes a single characteristic about an item
- Column as known as field or attribute
- Data is atomic; there is no more than one value associated with the intersection of a row and column
- The relationships among tables are logical; there are no physical relationships among tables
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