import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class TestDML {

	public static void main(String[] args) {
		Statement stmt = null;
		Connection conn = null;
		try {
			Class.forName("oracle.jdbc.driver.OracleDriver");
			//new oracle.jdbc.driver.OracleDriver();
			conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.0.1:1521:SXT", "scott", "tiger");
			stmt = conn.createStatement();
			String sql = "insert into dept2 values (98, 'GAME', 'BJ')";
			stmt.executeUpdate(sql);
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			try {
				if(stmt != null) {
					stmt.close();
					stmt = null;
				}
				if(conn != null) {
					conn.close();
					conn = null;
				}
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
	}

}


import java.sql.*;public class TestJDBC { public static void main(String[] args) { ResultSet rs = null; Statement stmt = null; Connection conn = null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); //new oracle.jdbc.driver.OracleDriver(); conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.0.1:1521:SXT",
 "scott", "tiger"); stmt = conn.createStatement(); rs = stmt.executeQuery("select * from dept"); while(rs.next()) { System.out.println(rs.getString("deptno")); System.out.println(rs.getInt("deptno")); } } catch (ClassNotFoundException e) { e.printStackTrace();
 } catch (SQLException e) { e.printStackTrace(); } finally { try { if(rs != null) { rs.close(); rs = null; } if(stmt != null) { stmt.close(); stmt = null; } if(conn != null) { conn.close(); conn = null; } } catch (SQLException e) { e.printStackTrace(); } }
 }}

 
 
 
 
 
import java.sql.*;

public class TestPrepStmt {
 public static void main(String[] args) {
  if(args.length != 3) {
   System.out.println("Parameter Error! Please Input Again!");
   System.exit(-1);
  }
  
  int deptno = 0;
  
  try {
   deptno = Integer.parseInt(args[0]);
  } catch (NumberFormatException e) {
   System.out.println("Parameter Error! Deptno should be Number Format!");
   System.exit(-1);
  }
  
  String dname = args[1];
  String loc = args[2];
  
  PreparedStatement pstmt = null;
  Connection conn = null;
  try {
   Class.forName("oracle.jdbc.driver.OracleDriver");
   //new oracle.jdbc.driver.OracleDriver();
   conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.0.1:1521:SXT", "scott", "tiger");
   pstmt = conn.prepareStatement("insert into dept2 values (?, ?, ?)");
   pstmt.setInt(1, deptno);
   pstmt.setString(2, dname);
   pstmt.setString(3, loc);
   pstmt.executeUpdate();
  } catch (ClassNotFoundException e) {
   e.printStackTrace();
  } catch (SQLException e) {
   e.printStackTrace();
  } finally {
   try {
    if(pstmt != null) {
     pstmt.close();
     pstmt = null;
    }
    if(conn != null) {
     co