Column   

A table consists of columns. You can perform calculations with columns using TabCalc.

Each column has a domain. A column with a value domain contains values, a column with a class domain contains class names, a column with domain ID contains IDs, etc. Columns can also have domain String; you can use this to type for instance descriptions.

If in an attribute table you have columns with a class domains, or with user-defined value domains, you may consider to prepare a representation for these columns as well. When you open the map to which the attribute table is linked, and you can directly display the map by one of its attributes.