質問編集履歴
3
見やすくした
test
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test
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@@ -6,7 +6,11 @@
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6
6
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7
7
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```sql
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8
8
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9
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+
select p.name from publisher p
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10
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+
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11
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+
left join book b on b.publisher_id = p.id
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12
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+
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9
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-
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13
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+
where b.name = '信長' or b.name = '秀吉' group by p.id;
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10
14
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11
15
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```
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12
16
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@@ -18,7 +22,11 @@
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22
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```sql
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24
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25
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+
select p.name from publisher p
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26
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+
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27
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+
left join book b on b.publisher_id = p.id
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28
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+
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21
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-
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29
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+
where b.name = '信長' and b.name = '秀吉' group by p.id;
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22
30
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23
31
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```
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32
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2
誤字修正
test
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test
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@@ -40,7 +40,7 @@
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40
40
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41
41
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id serial primary key,
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42
42
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43
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-
name
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43
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+
name text
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44
44
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45
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);
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46
46
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@@ -54,7 +54,7 @@
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54
54
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55
55
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publisher_id integer,
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56
56
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57
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-
name
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57
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+
name text
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58
58
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59
59
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);
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60
60
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1
補足
test
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File without changes
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test
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@@ -25,3 +25,41 @@
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25
25
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26
26
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27
27
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当たり前ですが、こう書き換えただけではダメです。
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28
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+
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29
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+
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30
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+
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31
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+
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32
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+
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33
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+
create tableは
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34
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+
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35
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+
```ここに言語を入力
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36
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+
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37
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+
出版社テーブル
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38
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+
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39
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+
create table publisher (
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40
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+
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41
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+
id serial primary key,
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42
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+
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43
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+
name
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44
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+
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45
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+
);
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46
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+
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47
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+
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48
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+
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49
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+
本テーブル
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50
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+
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51
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+
create table book (
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52
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+
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53
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+
id serial primary key,
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54
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+
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55
|
+
publisher_id integer,
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56
|
+
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|
57
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+
name
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|
58
|
+
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59
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+
);
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60
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+
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|
61
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+
```
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62
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+
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63
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+
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64
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+
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65
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+
となります。
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