SELECT "aggregation_book"."id", "aggregation_book"."name", "aggregation_book"."pages", "aggregation_book"."price", "aggregation_book"."rating", "aggregation_book"."publisher_id", "aggregation_book"."pubdate", COUNT("aggregation_book_authors"."author_id") AS "num_authors" FROM "aggr...
www.dbjr.com.cn/article/1903...htm 2025-5-25