Insert a Row into a Database Table Using a Statement : Insert Update Delete « Database « Java Tutorial

1. Java Tutorial
2. Database
3. Insert Update Delete

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

public class Main {
  public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement stmt = conn.createStatement();


    stmt.executeUpdate("create table survey (id int, name CHAR(5) );");

    stmt.executeUpdate("INSERT INTO survey(id, name)VALUES(111, '123456789')");

    ResultSet rs = stmt.executeQuery("SELECT * FROM survey");

    outputResultSet(rs);

    stmt.executeUpdate("drop table survey");
    
    rs.close();
    stmt.close();
    conn.close();
  }

  private static void outputResultSet(ResultSet rs) throws Exception {
    ResultSetMetaData rsMetaData = rs.getMetaData();
    int numberOfColumns = rsMetaData.getColumnCount();
    for (int i = 1; i < numberOfColumns + 1; i++) {
      String columnName = rsMetaData.getColumnName(i);
      System.out.print(columnName + "   ");

    }
    System.out.println();
    System.out.println("----------------------");

    while (rs.next()) {
      for (int i = 1; i < numberOfColumns + 1; i++) {
        System.out.print(rs.getString(i) + "   ");
      }
      System.out.println();
    }

  }

  private static Connection getConnection() throws Exception {
    Class.forName("org.hsqldb.jdbcDriver");
    String url = "jdbc:hsqldb:mem:data/tutorial";

    return DriverManager.getConnection(url, "sa", "");
  }
}

ID   NAME   
----------------------
111   123456789