Copy/populate from one field to another in a form?

Copy/populate from one field to another in a form?

Hi,

I've tried to populate data from one field to another in a form,
trying on add, on validate, scripting in the field directly...
Can't get it to work!!

field "Summary" has to get data from "Segment", "Solution", Date_field", "Time"
so as to be something like:

Segment: PLAT
Solution: FR
Date: 261008
Time: 1430

And then Summary gets it all:
Summary: PLAT FR 261008 1430

I've tried this:

insert into HD_INPUT_FORM
[
Added_User = zoho.loginuser
Summary = "input.Segment"
Summary = "input.Solution"
Summary = "input.Date_field"
Summary = "input.Time"
]

I've tried on form validate too...