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2

追記

2019/02/10 12:03

投稿

sazi
sazi

スコア25430

answer CHANGED
@@ -18,6 +18,7 @@
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  ```
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  追記
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  --
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+ 上記のexists使用版
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  ```SQL
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  SELECT * FROM hotels t1
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  WHERE exists (

1

追記

2019/02/10 12:03

投稿

sazi
sazi

スコア25430

answer CHANGED
@@ -15,4 +15,14 @@
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  SELECT hotel_id, country_code from areas
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  where area like '%地名%'
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  )
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+ ```
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+ 追記
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+ --
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+ ```SQL
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+ SELECT * FROM hotels t1
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+ WHERE exists (
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+ SELECT 1 from areas
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+ where hotel_id = t1.hotel_id and country_code = t1.country_code
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+ and area like '%地名%'
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+ )
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  ```