回答編集履歴
4
修正
test
CHANGED
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@@ -88,7 +88,7 @@
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88
88
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89
89
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`ARTICLES`.`station_id` = `STATIONS`.`id`
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90
90
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91
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-
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91
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+
LEFT JOIN
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92
92
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93
93
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`LINK_LINE_STATION`
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94
94
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@@ -96,7 +96,7 @@
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96
96
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97
97
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`STATIONS`.`id` = `LINK_LINE_STATION`.`staion_id`
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98
98
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99
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-
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99
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+
LEFT JOIN
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100
100
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101
101
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`LINES`
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102
102
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3
追記
test
CHANGED
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@@ -61,3 +61,51 @@
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61
61
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
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62
62
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63
63
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```
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64
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+
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65
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+
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66
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+
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67
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+
```sql
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68
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+
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69
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+
SELECT
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70
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+
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71
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+
`ARTICLES`.`id`
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72
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+
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73
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+
, `ARTICLES`.`content`
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74
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+
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75
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+
, `STATIONS`.`station_name`
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76
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+
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77
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+
, `LINES`.`line_name`
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78
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+
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79
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+
FROM
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80
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+
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81
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+
`ARTICLES`
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82
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+
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83
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+
INNER JOIN
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84
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+
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85
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+
`STATIONS`
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86
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+
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87
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ON
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88
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+
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89
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`ARTICLES`.`station_id` = `STATIONS`.`id`
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90
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+
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91
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+
INNER JOIN
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92
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+
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93
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+
`LINK_LINE_STATION`
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94
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+
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95
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+
ON
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96
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+
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97
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+
`STATIONS`.`id` = `LINK_LINE_STATION`.`staion_id`
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98
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+
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99
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+
INNER JOIN
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100
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+
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101
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+
`LINES`
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102
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+
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103
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+
ON
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104
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+
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105
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+
`LINK_LINE_STATION`.`line_id` = `LINES`.`id`
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106
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+
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107
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+
WHERE
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108
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+
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109
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+
`LINES`.`line_name` LIKE '%路線名%'
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110
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+
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111
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+
```
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2
tuiki
test
CHANGED
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File without changes
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1
追記
test
CHANGED
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@@ -1,4 +1,4 @@
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1
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-
自分だったら、基本的には、以下のように設計します。
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1
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+
自分だったら、基本的には、以下のように設計します。インデックスとかは省略してます。
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2
2
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3
3
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4
4
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