如何在Java JDBC程序中使用INSERT SQL語句？

Question

我有以下代碼：

   try{  

         String select2 = "INSERT INTO employees VALUES (17, 'Adam', 'Kizzam', 'aa@zz.com', '123-456-7890', '12-DEC-00', '1234', '12345.23, 50', '12.25', 1222, 4769) "; 

         PreparedStatement preparedStatement2 = connection.prepareStatement(select2); // dbConnection. prepareStatement(selectSQL); 
         ResultSet rs2 = preparedStatement2.executeUpdate(select2); 

         while (rs.next()) { 
          String userid = rs.getString("EMPLOYEE_ID"); 
          String username = rs.getString("FIRST_NAME"); 
          System.out.println ("the userid , username are " + userid + " " + username); 
       } } 

這給了我下面的錯誤：

錯誤（54,77）：不兼容的類型;必需：java.sql.ResultSet; 發現：
INT DBConnection.java C：\ JDeveloper中\ MYWORK \ OracleDatabaseApp \ OracleDatabaseApp的\ src \ oracledatabaseapp OracleDatabaseApp.jpr

Answer 1

executeUpdate返回一個int

int rows = preparedStatement2.executeUpdate(select2);