Question

我正在尝试创建一个Sqlite数据库，然后创建一个包含一列的表并插入，从中读取值。我已经从CLI添加了用于Cordova的sqlite插件，我可以在插件下看到com.brodysoft.sqlitePlugin section.Now on onDeviceReady我正在尝试创建数据库。这就是代码..

function onDeviceReady() {

 var databaseName =  "techDB";
 var databaseVersion = "1.0";
 var databaseDisplayName = "TTDatabase";
 var databaseSize =  25;
 var myDB = "";

 //Accessing with HTML5 local database
 myDB = window.openDatabase(databaseName, databaseVersion , databaseDisplayName, databaseSize);

//Using SQLite plugin
 myDB = window.sqlitePlugin.openDatabase({name : databaseName});
 }

并且在按钮上单击“我正在尝试使用相应的功能名称执行操作”。

创建表

function CreateMobileTable() {
    myDB.transaction(function(transaction) {
        transaction.executeSql('CREATE ' +
                   'TABLE IF NOT EXISTS ' +
                   'Mobile_Table (device_PhoneNumber integer)', [],
            function(tx, result) {
                alert("Mobile_Table  created successfully.");
            }, 
            function(error) {
                  alert("Error occurred while creating the table.");
            });
        });
      }

插入数据。

 function InsertMobileData(){
        myDB.transaction(function(transaction) {
            // Define insert query
            var executeQuery = "INSERT INTO " +
                                "Mobile_Table" + 
                                "(device_PhoneNumber) "+
                                "VALUES(?)";
            Helper.log(executeQuery);              
            transaction.executeSql(executeQuery, ['+callingNo+']
                , function(tx, result) {   // On success
                 alert("Mobile Number Inserted Successfully");
                },
                function(error){     // On error                               
                     alert("Error while inserting data");
                });
        });
}        
});

和读表数据

function GetMobileNumber() {
myDB.transaction(function(transaction) {
    transaction.executeSql("SELECT device_PhoneNumber FROM Mobile_Table                                                   WHERE business_id =?", ['1234'],
    function(tx, result) {
          var dataLength = result.rows.length;
           console.log(dataLength);
          if(dataLength  > 0){
               var no = result.rows.item(0).business_name;
             alert(no);
           }else{
               alert("No Result Found");
           }
      }, 
      function(error) {
          alert("Error while fetching the data");
      });
  }); 
  }

问题是，我无法创建数据库，无法获取任何警报消息..此外，我的应用程序的其他功能也无法正常工作... 请帮帮我..谢谢..

无法在Cordova中创建Sqlite数据库

0 个答案: