Theoretically,databases could store instances in columns and characteristics in rows,instead of the other way around.

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Quizplus · Accepted Answer

This is true. It is possible to store instances in columns and characteristics in rows, although it is not the traditional way of organizing a database. This is called a "Column-Oriented Database" or "Column-Family Database." It is often used for big data applications, where data is read and written in large batches rather than individual records.

Theoretically,databases Could Store Instances in Columns and Characteristics in Rows,instead