A column is a vertical field in a table: its name identifies one dimension or measure, while its cells hold that attribute across rows. section 3.5.1
Thinking in tables means reading columns alongside rows, joins, and aggregations. Before interpreting values, identify the table’s grain: what one row represents. section 3.5.1
Table 3.1 A table of data I hypothetically collected about how tasty individual fruits have been recently (view table figure)
The fruit table makes columns concrete: Fruit ID, fruit type, taste score, and date eaten describe different attributes for each fruit record. section 3.5.1
