質問編集履歴
1
ソースコード追加
test
CHANGED
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File without changes
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test
CHANGED
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@@ -24,7 +24,7 @@
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24
24
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25
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```
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26
26
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27
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-
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27
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+
データが無い場合のメッセージの表示が分からない
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28
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```
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30
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@@ -32,20 +32,96 @@
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32
32
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33
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###該当のソースコード
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34
34
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35
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-
```
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35
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+
```Java
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36
36
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37
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-
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37
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+
public static void select() {
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38
38
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39
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Connection connection = null;
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40
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+
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41
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+
PreparedStatement preparedStatement = null;
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42
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+
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43
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ResultSet resultSet = null;
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44
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+
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39
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-
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45
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+
try {
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46
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+
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47
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// DB接続
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48
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+
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49
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+
connection = DBManager.getConnection();
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40
50
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41
51
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42
52
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43
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-
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53
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+
// SQL文の準備
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44
54
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45
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-
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55
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+
String sql = "select E.emp_id , E.emp_name , E.gender , E.birthday , D.dept_name FROM employee E INNER JOIN department D ON E.dept_id = D.dept_id ORDER BY emp_id";
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46
56
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47
57
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48
58
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49
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-
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59
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+
// ステートメント作成
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50
60
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61
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+
preparedStatement = connection.prepareStatement(sql);
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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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// SQL実行
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66
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+
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67
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resultSet = preparedStatement.executeQuery();
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68
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+
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69
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+
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70
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+
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71
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+
// レコード出力
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72
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+
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73
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System.out.println("社員ID\t社員名\t\t性別\t生年月日\t部署名");
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74
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+
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75
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+
while (resultSet.next()) {
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76
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+
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77
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+
System.out.print(resultSet.getString("emp_id") + "\t\t");
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78
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+
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79
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+
System.out.print(resultSet.getString("emp_name") + "\t");
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80
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+
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81
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+
if (resultSet.getInt("gender") == 1) {
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82
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+
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83
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System.out.print("男性\t");
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84
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+
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51
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-
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85
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+
} else {
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86
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+
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87
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System.out.print("女性\t");
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88
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+
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89
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+
}
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90
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+
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91
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+
SimpleDateFormat sm = new SimpleDateFormat("yyyy/MM/dd");
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92
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+
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93
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+
String birthday = sm.format(resultSet.getDate("birthday"));
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94
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+
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95
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+
System.out.print(birthday + "\t");
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96
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+
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97
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+
System.out.println(resultSet.getString("dept_name"));
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98
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+
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99
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+
}
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100
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+
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101
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+
// 空白
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|
102
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+
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103
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+
System.out.println();
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104
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+
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105
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+
} catch (Exception e) {
|
|
106
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+
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107
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+
e.printStackTrace();
|
|
108
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+
|
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109
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+
} finally {
|
|
110
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+
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111
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+
// クローズ処理
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|
112
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+
|
|
113
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+
// ResulutSetクローズ
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|
114
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+
|
|
115
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+
DBManager.close(resultSet);
|
|
116
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+
|
|
117
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+
// Statementクローズ
|
|
118
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+
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119
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+
DBManager.close(preparedStatement);
|
|
120
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+
|
|
121
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+
// DBとの接続の切断
|
|
122
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+
|
|
123
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+
DBManager.close(connection);
|
|
124
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+
|
|
125
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+
}
|
|
126
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+
|
|
127
|
+
}
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