MySQL练习7

最新推荐文章于 2024-04-05 12:53:03 发布

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最新推荐文章于 2024-04-05 12:53:03 发布

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分类专栏： MySQL 文章标签： MySQL ZOO SQL

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来源于zoo sql, 练习连接表的操作

actor为演员表,name为演员名字

movie为电影列表, title为电影名字, yr为发行年份,director为导演编号,关联actor中的id字段,budget为预算,gross为票房

casting为电影演员表,movieid为影片编号, 关联movie中的id字段,actorid为演员编号,关联actor中的id字段

练习题目

1. List the films where the yr is 1962 [Show id, title] 
    SELECT id, title FROM movie WHERE yr=1962;
2. Give year of 'Citizen Kane'. 
    select yr from movie where title = 'Citizen Kane';
3. List all of the Star Trek movies, include the id, title and yr (all of these movies include the words Star Trek in the title). Order results by year. 
    select id ,title, yr from movie where title like '%Star Trek%' order by yr;
4. What id number does the actor 'Glenn Close' have? 
    select id from actor where name = 'Glenn Close';
5. What is the id of the film 'Casablanca' 
    select id from movie where title = 'Casablanca' ;
6. Obtain the cast list for 'Casablanca'.
   what is a cast list?
   The cast list is the names of the actors who were in the movie.
   Use movieid=11768, (or whatever value you got from the previous question) 
    select name from casting, actor where actorid = id and movieid = 11768;
7. Obtain the cast list for the film 'Alien' 
    select name from casting, actor, movie where actorid = actor.id and movieid = movie.id and title = 'Alien';
8. List the films in which 'Harrison Ford' has appeared 
    select title from casting, actor, movie where actorid = actor.id and movieid = movie.id and name =  'Harrison Ford';
9. List the films where 'Harrison Ford' has appeared - but not in the starring role. [Note: the ord field of casting gives the position of the actor. If ord=1 then this actor is in the starring role] 
    select title from casting, actor, movie where actorid = actor.id and movieid = movie.id and name =  'Harrison Ford' and ord != 1;
10. List the films together with the leading star for all 1962 films. 
    select title, name from casting, actor, movie where actorid = actor.id and movieid = movie.id and yr = 1962 and ord = 1;
11. Which were the busiest years for 'John Travolta', show the year and the number of movies he made each year for any year in which he made more than 2 movies.
    select yr, count(*) from casting, actor, movie where actorid = actor.id and movieid = movie.id and name = 'John Travolta' group by yr having count(*) > 2;
12. List the film title and the leading actor for all of the films 'Julie Andrews' played in. 
    select title, name from casting, actor, movie where actorid = actor.id and movieid = movie.id and ord = 1 and movieid in (select distinct movieid from casting, actor where actorid = id and name =  'Julie Andrews') ;
13. Obtain a list, in alphabetical order, of actors who've had at least 30 starring roles. 
    -- 查找担任过至少30部电影主角的明星'
    select name from casting, actor where actorid = id and ord = 1 group by name having count(*) >= 30 order by name;
14. List the films released in the year 1978 ordered by the number of actors in the cast, then by title. 
    select title, count(*) from movie, casting where id = movieid and yr = 1978 group by title  order by count(*) desc , title;
15. List all the people who have worked with 'Art Garfunkel'. 
    select name from casting, actor where actorid = id and name != 'Art Garfunkel' and movieid in ( select movieid from casting, actor where actorid = id and name = 'Art Garfunkel');

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