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Understanding data types in domains

Question asked by EninnaLuli on Apr 4, 2016
Latest reply on Apr 4, 2016 by jborgion

I am trying to understand which data type to use when creating domains.

 

I am working with the data from Esri's certificate Working with Geodatabase Domains and Subtypes in ArcGIS.

The Subdividion.gdb has a range domain WaterMainDiameter which is indicated a Long Integer and the minimum value is 1 and the maximum value is 2. Why is it Long Integer if it is such a short range? Isn't it more efficient (less storage space) to use Short Integer instead? Long Integer does not hold decimals, right? So it means that the only permissible values are 1 and 2?

 

This link shows that the permissible values for Long Integer are -2,147,483,648 to 2,147,483,647

ArcGIS Desktop Help 9.2 - Geodatabase field data types

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