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查无此人Correction status：qualified
Teacher's comments：完成的不错，继续努力
Collection
Collection
增加：INSERT INTO数据表(字段1,字段2…) VALUES (‘值1’,’值2’…)
删除：DELETE FROM movies WHERE mov_id = 9
修改： UPDATE category SET alias=’日韩新片’ WHERE cate_id = 3
查询: SELECT FROM movies WHERE mov_id = 9
