Hi,

I have a vector (`POINT`) which has two layers containing relevant attributes 
(’strata’ and ’stand’). I would like to concatenate the two values into a new 
attribute for Layer 1 (’<STRATA>_<STAND>’). I’ve been struggling to sort this 
out for too long and am tapping out. Its probably blatantly obvious but it has 
escaped me.

Thank you!

Here are some specifics.


east, north: 651849.842735, 6604949.78485
c34_patch@project_area: 
  Type: Point
  Id: 21622
  Layer: 1
  Category: 21623
  Driver: sqlite
  Database: /Users/pete/grassdata/PortGraham/project_area/sqlite/sqlite.db
  Table: c34_patch
  Key_column: cat
  Attributes: 
    cat: 21623
    strata: 3  — STRATA
c34_patch@project_area: 
  Type: Point
  Id: 21622
  Layer: 2
  Category: 10  — STAND
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