I am currently trying to get ArcGIS 10.4 to symbolise point features by utilising a date field.
All my features have a 'last reviewed' date.
Ideally, I would like ArcGIS to symbolise my features by the following by using today's date on start-up
1. If the 'last reviewed' date is over 1 year ago
2. If the date is within 1 year
3. If the date field is blank
I think there are two method to do that symbology
Frist method ( recommended :(
1- Add New field to your attribute table .
2- Select by attribute for records that "date is over 1 year ago" / "within 1 year" / Null
3- Calculate new field with unique value for each selection.
4-Use that field in symbology.
1- Add your layer in TOC 3 times
2- Make a definition query for each layer with unique group as you want "date is over 1 year ago" / "within 1 year" / Null
(each layer has different expression)
3- Symbolize each layer manual.
Thanks for your response - I think the first method seems more suitable.
If I were to use this method would the symbology automatically change by using the date on my computer?
For a dynamic solution I would go with option 2 of Abdullah's suggestion. You can set your layer definition query to take the current date into account:
Over a year: ReviewDate < CURRENT_DATE - 365
Within 1 year: ReviewDate >= CURRENT_DATE - 365
Null: ReviewDate IS Null