insert into article_favorites (article_id, user_id) values (#{articleFavorite.articleId}, #{articleFavorite.userId}) delete from article_favorites where article_id = #{favorite.articleId} and user_id = #{favorite.userId} select AF.article_id articleFavoriteArticleId, AF.user_id articleFavoriteUserId from article_favorites AF where AF.article_id = #{articleId} and AF.user_id = #{userId}