phonegap 中的存储(3)

    //创建新的事物对象，并传递给回调函数 
    dbOne.transaction(queryMyTab,successQueryMyTabTrans,errorQueryMyTabTrans); 
} 
 
function successQueryMyTabTrans(){ 
    alert("successQueryMyTabTrans"); 
} 
function errorQueryMyTabTrans(){ 
    alert("err code:"+err.code+"err message:"+err.message); 
} 
//查询 
function queryMyTab(trans){ 
    //查询成功后执行successQueryMyTab回调函数，失败执行errorQueryMyTab函数 
    trans.executeSql('SELECT * FROM MyTab', [], successQueryMyTab, errorQueryMyTab); 
} 
//executeSql执行成功后执行，并将SQLTransaction、SQLResultSet两个对象传递给函数  successQueryMyTab 
function successQueryMyTab(trans,results){ 
    var len = results.rows.length; 
    alert(len); 
    //利用弹出框显示查询的结果 
    for (var i=0; i<len; i++){ 
            alert("Row = " + i + " ID = " + results.rows.item(i).id + " Data =  " + results.rows.item(i).data); 
        }    
} 
//executeSql()执行失败后执行 
function errorQueryMyTab(err){ 
    alert("err code:"+err.code+"err message:"+err.message); 
}