Java tutorial
import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; public class Main { public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st.executeUpdate("insert into survey (id,name ) values (3,'Tom')"); st = conn.createStatement(); ResultSet rs = st.executeQuery("SELECT * FROM survey"); while (rs.next()) { int id = rs.getInt(1); // index 1 is the "id" column String name = rs.getString(2); // index 2 is the "name" column System.out.println(id); System.out.println(name); } rs.close(); st.close(); conn.close(); } private static Connection getConnection() throws Exception { Class.forName("org.hsqldb.jdbcDriver"); String url = "jdbc:hsqldb:mem:data/tutorial"; return DriverManager.getConnection(url, "sa", ""); } }