Self-referencing constraint in MS SQL

Question

Is it true that MS SQL restrict self-referencing constraints with ON DELETE CASCADE option? I have a table with parent-child relation, PARENT_ID column is foreign key for I

Answer 1

CREATE TRIGGER MyTable_OnDelete ON MyTable
INSTEAD OF DELETE
AS 
BEGIN

  SET NOCOUNT ON;

  DELETE FROM mt
  FROM   deleted AS D
  JOIN   MyTable AS mt
  ON     d.Id = mt.ParentId

  DELETE FROM mt
  FROM   deleted AS D
  JOIN   MyTable AS mt
  ON     d.Id = mt.Id

END