localDB.js

// create a new database
// openDatabase(id,version,name,size)
var db = openDatabase("notes", "", "The Example Notes App!", 1048576);

// open transction
// db.transaction expects a function with a transaction argument in which the unit of work will be processed 
db.transaction(function(tx) {

// if notes table does not exist create it
// transaction.executeSql(sqlString,arguments[,successCallback,errorCallback]);
    tx.executeSql('CREATE TABLE IF NOT EXISTS Notes(id INTEGER primary key, title TEXT, body TEXT)', 
      []);
// select all data from notes 
    tx.executeSql(‘SELECT * FROM Notes’, [], function(tx, rs) {
// iterate on the results and log them to the console
      for(var i = 0; i < rs.rows.length; i++) {
        console.log(JSON.stringify(rs.rows.item(i)));
      }
    });
});