Query builder

Hi all,

Basic question but I am confused,Using Query builder I queried CMS.

Select SI_DATA from CI.Systemobjects where

SI_CUID = '....'

The query display three columns.I don't understand how the data is displaying.

  In basic database If I select one column then it will display values in one column.

  Example :Select countryname from country

result:

USA,

INDA,

Russia

In the image I see 3 column, If I say 2 column as values for SI_Data then what is 3 column.