Merge pull request #322 from Gsllchb/patch-1

fix typo
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郑永川 2018-07-14 12:19:32 +08:00 committed by GitHub
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@ -250,7 +250,7 @@ SELECT actor_id FROM sakila.actor WHERE actor_id + 1 = 5;
```sql
SELECT film_id, actor_ id FROM sakila.film_actor
WhERE actor_id = 1 AND film_id = 1;
WHERE actor_id = 1 AND film_id = 1;
```
### 3. 索引列的顺序