回答編集履歴
1
削除用SQLを追記
answer
CHANGED
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@@ -30,4 +30,45 @@
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30
30
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AND r1.id < r2.id
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order by
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id1, id2;
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33
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+
```
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34
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+
---
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35
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追記：
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36
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+
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37
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削除まで一気にやるとするならこうでしょうか。
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38
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```
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39
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DELETE
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40
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FROM
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nayose_otameshi
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42
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WHERE
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43
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nayose_otameshi.id IN (
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44
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SELECT
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45
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tmp.id
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46
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FROM
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47
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(
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48
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SELECT
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49
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r2.id
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50
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FROM
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51
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(
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52
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SELECT
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53
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MIN(id) id
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54
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, first_name_kana
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55
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, last_name_kana
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56
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, phone_number
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57
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, city
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58
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FROM
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nayose_otameshi
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60
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GROUP BY
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61
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first_name_kana
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62
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, last_name_kana
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63
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, phone_number
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64
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, city
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65
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) r1
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66
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INNER JOIN nayose_otameshi r2
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67
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ON r1.first_name_kana = r2.first_name_kana
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68
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AND r1.last_name_kana = r2.last_name_kana
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69
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AND r1.phone_number = r2.phone_number
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70
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AND r1.city = r2.city
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71
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AND r1.id < r2.id
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72
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) as tmp
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73
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);
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33
74
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```
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