GIS Dictionary

Definitions for GIS terms related to operations such as analysis, GIS modeling and web-based GIS, cartography, and Esri software.

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column

  1. [database structures] An item in an attribute table.
  2. [computing] The vertical dimension of a table. Each column stores the values of one type of attribute for all the records, or rows, in the table. All the values in a given column are of the same data type; for example, number, string, BLOB, or date.
  3. [data models] A vertical group of cells in a raster, or pixels in an image. column Illustration