Question

I have the following insert trigger, which is essentially writing a duplicate row from an insert to a QA/QC table (IAW business requirement).

  INSERT dbo.TBL_LOCATIONS(
  Column1, Column2
  )
  SELECT 
  a.Column1,  a.Column2
  From
  (  
    SELECT  
   Column1,   Column2
     FROM inserted  
  ) AS a 
  end
GO

What I’m trying to do is populate [Column1] in tbl_locations with a range of values based on a logic test of the possible values being inserted in the insert table,e.g. if [a.Column1] is “1”, then insert “Some string” in tbl_locations.Column1, if [a.Column1] is “2”, then insert “Some other string” in tbl_locations.Column1,if [a.Column1] is “3”, then insert “Yet another string” in tbl_locations.Column1…

Answer 1

Alternatively, you could try something like this:

INSERT INTO dbo.TBL_LOCATIONS (Column1, Column2)
SELECT
  s.Description,
  i.Column2
FROM inserted i
LEFT JOIN (
  VALUES
    (1, 'Polygon: Determination Made by GPS Survey'  ),
    (2, 'Polygon: Determination Derived from NWI'    ),
    (3, 'Polygon: Determination Made by Other Means' ),
    (4, 'Polygon: Legal Jurisdictional Determination')
) s (ID, Description)
ON i.Column1 = s.ID