Hello
Creation query :
CREATE (n:USER_RIGHTS {user_name: "random_username_123"}) RETURN n
Query :
MATCH (n:USER_RIGHTS {user_name: "random_username_123"}) RETURN n works when the string is in the query, but
If you go like
MATCH (n:USER_RIGHTS {user_name: $username}) RETURN n
and with username random_username_123 in params, it matches nothing.