CREATE TABLE IF NOT EXISTS "categories" (
  "id" TEXT PRIMARY KEY, /* UUID */
  "name" TEXT NOT NULL,
  "color" TEXT NOT NULL, /* HEXA */
  "created" TEXT NOT NULL, /* DATETIME */
  "updated" TEXT NOT NULL /* DATETIME */
);

INSERT INTO 
  "categories" ("id", "name", "color", "created", "updated") 
  VALUES ("b2253284-1572-43d5-96ec-bf6ad448f46a", "Perso", "#a8c2e0", datetime(), datetime());

ALTER TABLE "events" ADD COLUMN "category" TEXT REFERENCES "categories" ("id"); /* UUID */