Most people are familiar with data in the form of a spreadsheet, with labeled columns of different data types such as name, address, age, and so on. Databases work the same way, with each table laid ...

Data is a thorny subject. For a start, we’re not sure how we are supposed to refer to it, that is - data is the plural of datum. Strictly speaking we should talk about data that ‘are’ not ‘is’ ...