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Topics #Joins #3

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8 changes: 5 additions & 3 deletions SQLZOO_solutions.md
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Expand Up @@ -445,8 +445,10 @@ SELECT id FROM movie
```
7.
```sql
SELECT name FROM casting JOIN actor ON (id=actorid)
WHERE movieid=11768
SELECT name FROM casting
JOIN actor ON (id=actorid)
JOIN movie ON (movie.id=movieid)
WHERE movieid=11768 <!-- movieid=27 -->
```
8.
```sql
Expand Down Expand Up @@ -522,7 +524,7 @@ SELECT title, COUNT(actorid) FROM casting
JOIN movie ON movieid = movie.id
WHERE yr = 1978
GROUP BY movieid, title
ORDER BY COUNT(actorid) DESC
ORDER BY COUNT(actorid) DESC, title
```
16.
```sql
Expand Down