What’s a database . (i need an example)

a structured set of data held in a computer, especially one that is accessible in various ways. here is an example

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hello,

a database is an organized structure source of data a good example would be microsoft excel

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at hatfield elementary school, there are 504 students in 7 classes. each class has the same number of students. what is a good estimate of the number of students in each class?