6 replies to this topic

[hocgis]

Hi everybody! Can you help me?
I want to represent logical data which have 2 value: true or false for attribute of features.

[Matthew Hampton]

0 1

:-)

[hocgis]

0 1

:-)

0 or 1 values are integer format. I mean Attribute field must be logical.

Ex:
+ To represent character data, we use "text" data type
+ To represent numeric data, we use "float/ double/ integer" data type
+ To represent logical data (true or false), we use " ? " data type

[frax]

Why can't you just use an unsigned one digit integer, and just use 0 and 1?

[hocgis]

Why can't you just use an unsigned one digit integer, and just use 0 and 1?

Sorry, can you explain more clearly? I have not already understand what you mean?

[DaveB]

As far as I know there is no boolean or logical data type. You could use an integer type as suggested, or a text type, and restrict the possible values by setting up an attribute domain. Look up domains in the ArcGIS Desktop help for more info.

edit: I stand corrected. See Hugo's post following this one.

[frax]

If you use a file/personal/enterprise geodatabase you can have bit/boolean values.