使用JDBC將數據插入Oracle數據庫的問題

Question

我試圖在Oracle 10g數據庫中使用預準備語句插入數據，但執行下面給出的代碼時出現「SQL異常：常規錯誤」。我認爲問題是在DATE字段或PASSWORD字段數據檢索。請幫助我解決這個問題。謝謝。

學生表： -

     Sid  VARCHAR2(200) PRIMARY KEY CHECK(Sid>0), 
         Pass_word VARCHAR2(10) NOT NULL, 
         S_name VARCHAR2(20) NOT NULL, 
         G_name VARCHAR2(20)   , 
         Branch VARCHAR2(10) NOT NULL, 
         D_company VARCHAR2(20)   , 
         B_Percent INT NOT NULL CHECK(B_Percent<100), 
         twelth_percent INT NOT NULL CHECK(twelth_percent<100), 
         tenth_percent INT NOT NULL CHECK(tenth_percent<100), 
         Certify VARCHAR2(30), 
         Semester INT NOT NULL CHECK(Semester<9), 
         D_Birth DATE NOT NULL, 
         Sex  VARCHAR2(6) NOT NULL 

代碼： -

int bpercent ; 
    int twelthpercent; 
    int tenthpercent; 
    int semester; 
    String studentID = null; 
    String studentpassword = null; 
    String studentname = null; 
    String Gname = null; 
    String branch = null; 
    String dcompany = null; 
    String certify = null; 
    String sex = null; 
    Date date = new Date(00-00-0000); 

    Connection connection = null; 

嘗試 {

// Load the JDBC driver 

String driverName = "sun.jdbc.odbc.JdbcOdbcDriver"; 

Class.forName(driverName); 

connection = DriverManager.getConnection("jdbc:odbc:placement","siddharth","sid"); 

studentID = StudentID.getText(); 
spassword = PasswordField.getPassword(); 
studentname = NameField.getText(); 
Gname = GuardianField.getText(); 
branch = BranchField.getText(); 
dcompany = DcompanyField.getText(); 
bpercent = Integer.parseInt(BtechField1.getText()); 
twelthpercent = Integer.parseInt(TwelthField.getText()); 
tenthpercent = Integer.parseInt(TenthField.getText()); 
semester =Integer.parseInt(SemesterField.getText()); 
certify = CertificationField.getText(); 
date = (Date) DateTextField.getValue(); 
sex = SexCombo.getActionCommand(); 



PreparedStatement state = connection.prepareStatement("insert into student " +"(sid,pass_word,s_name,g_name,branch,d_company,b_percent,twelth_percent,tenth_percent,certify,semester,d_birth,sex)"+ 
      "values(?,?,?,?,?,?,?,?,?,?,?,?,?)"); 

state.setString(1, studentID); 
state.setString(2, spassword.toString()); 
state.setString(3,studentname); 
state.setString(4,Gname); 
state.setString(5,branch); 
state.setString(6,dcompany); 
state.setInt(7,bpercent); 
state.setInt(8,twelthpercent); 
state.setInt(9,tenthpercent); 
state.setInt(10,semester); 
state.setString(11,certify); 
state.setDate(1, new java.sql.Date(date.getTime())); 
state.setString(12,sex); 

state.executeUpdate(); 
state.close(); 

JOptionPane.showMessageDialog(null,"Data Inserted","Information Messgage",JOptionPane.INFORMATION_MESSAGE); 
connection.close(); 
}           

catch (ClassNotFoundException e) { 
// Could not find the database driver 
    JOptionPane.showMessageDialog(null,e); 
} 
catch (SQLException e) { 
// Could not connect to the database 
    JOptionPane.showMessageDialog(null,e); 
} 

}

Answer 1

你得證明，並學期輪

在INSERT SQL字符串錯誤的方式：

insert into (... tenth_percent,certify,semester,d_birth, ...) 

在

state.setInt(9,tenthpercent); 
state.setInt(10,semester); 
state.setString(11,certify); 
state.setDate(12, new java.sql.Date(date.getTime())); 

所以它試圖設置學期列轉換爲字符串，這是無效的。

Answer 2

我相信你有一個錯字，你有：

state.setDate(1, new java.sql.Date(date.getTime())); 
state.setString(12,sex); 

我想你想：

state.setDate(12, new java.sql.Date(date.getTime())); 
state.setString(13,sex); 

Answer 3

而不是使用行：

`String driverName = "sun.jdbc.odbc.JdbcOdbcDriver";  
Class.forName(driverName);` 

使用行：

DriverMana ger.registerDriver（new sun.jdbc.odbc.JdbcOdbcDriver）;

有時，類不能被驅動程序管理器讀取，因此您需要向drivermanager註冊驅動程序。

祝你好運！

好吧！有一個在代碼中的錯誤... 相反：

DriverManager.registerDriver（新sun.jdbc.odbc.JdbcOdbcDriver中）;

用途：

DriverManager.registerDriver（新sun.jdbc.odbc.JdbcOdbcDriver中（））;