Datum – A single piece of information
- Example: A phone number
Data – A collection of information and facts for reference or analysis
- Example: Student,Customer data
Database – A structured set of data held in a computer, especially one that is accessible in various ways
- Example: Company database
Tables – A set of data values using a model of vertical columns (identifiable by name) and horizontal rows, the cell being the unit where a row and column intersect.
Entity – Are usually recognizable concepts, either concrete or abstract, such as person, places, things, or events which have relevance to the database
Attributes – Is a specification that defines a property of an object, element, or file. It may also refer to or set the specific value for a given instance of such
Types/Datatype – Is a classification of data which tells the compiler or interpreter how the programmer intends to use the data.
- Example: integer, byte, Boolean, etc
Relationship – A situation that exists between two relational database tables when one table has a foreign key that references the primary key of the other table
Example of databases: