model User {
	id	Int	@id @default(autoincrement())
	email	String	@unique
	profile	Profile?
}

model Profile {
	name	String
	gender	String
	age	String
	
	// it should be @unique coz we want one Profile only reference one User
	userId	Int	@unique 
	user User	@relation(fields: [userId], refrences: [id])
}