CREATE TABLE "main_characters" (
  "character" text,
  "portrayed_by" text,
  "first_appearance" text,
  "last_appearance" text,
  "duration" text,
  "episodes" text
);

Question: Where did the character of Aiden Burn csi detective first appear?
SQL: SELECT "first_appearance" FROM "main_characters" WHERE "character"='aiden burn csi detective';