WebSQL无法创建表

Question

我有一些JavaScript代码可创建3个数据库和3个表。它创建前2个表，但不创建最后1个表。这是PhoneGap / Cordova应用程序，并且在初始化第一页时运行此特定代码。成员，产品和订单数据库可以很好地创建，但是只能创建成员和产品表。不是订单表。任何帮助和建议都非常感谢。

代码如下：

var membersDatabaseHandler = {
  db: null,
  createDatabase: function(){
    this.db = window.openDatabase(
      "members.db",
      "1.0",
      "members database",
      1000000);
    this.db.transaction(
      function(tx){
        //Run sql here using tx
        tx.executeSql(
          "create table if not exists member(_id integer primary key, firstName text, lastName text, phone number)",
          [],
          function(tx, results){},
          function(tx, error){
            console.log("Error while creating the member table: " + error.message);
          }
        );
      },
      function(error){
        console.log("Members DB Transaction error: " + error.message);
     },
      function(){
        console.log("Create Members DB transaction completed successfully");
      }
    );
  }
}

 var productsDatabaseHandler = {
  db: null,
  createDatabase: function(){
    this.db = window.openDatabase(
      "products.db",
      "1.0",
      "products database",
      1000000);
     this.db.transaction(
      function(tx){
        //Run sql here using tx
        tx.executeSql(
          "create table if not exists product(_id integer primary key, name text, price number, image text)",
          [],
          function(tx, results){},
          function(tx, error){
            console.log("Error while creating the product table: " + error.message);
          }
        );
      },
      function(error){
        console.log("Products DB Transaction error: " + error.message);
      },
      function(){
        console.log("Create Products DB transaction completed successfully");
      }
    );
  }
}

var ordersDatabaseHandler = {
  db: null,
  createDatabase: function(){
    this.db = window.openDatabase(
      "orders.db",
      "1.0",
      "orders database",
      1000000);
    this.db.transaction(
      function(tx){
        //Run sql here using tx
        tx.executeSql(
          "create table if not exists order(_id integer primary key, memberID number, name text, price number, items text)",
          [],
          function(tx, results){},
          function(tx, error){
            console.log("Error while creating the order table: " + error.message);
          }
        );
      },
      function(error){
        console.log("Orders DB Transaction error: " + error.message);
      },
      function(){
        console.log("Create Orders DB transaction completed successfully");
      }
    );
  }
}

我明显缺少什么吗？

谢谢