Puoi provare con Snippet. di seguito
This snippet contains all the part from Data base creation to Insert , Edit , Delete , Update and Display data del tuo database.
Nota: Change your Database name and Table name and Database fields here whatever you want to keep .
<script type="text/javascript" charset="utf-8">
// Wait for Cordova to load
//
document.addEventListener("deviceready", onDeviceReady, false);
var currentRow;
// Populate the database
//
function populateDB(tx) {
tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id INTEGER PRIMARY KEY AUTOINCREMENT, name,number)');
}
// Query the database
//
function queryDB(tx) {
tx.executeSql('SELECT * FROM DEMO', [], querySuccess, errorCB);
}
function searchQueryDB(tx) {
tx.executeSql("SELECT * FROM DEMO where name like ('%"+ document.getElementById("txtName").value + "%')",
[], querySuccess, errorCB);
}
// Query the success callback
//
function querySuccess(tx, results) {
var tblText='<table id="t01"><tr><th>ID</th> <th>Name</th> <th>Number</th></tr>';
var len = results.rows.length;
for (var i = 0; i < len; i++) {
var tmpArgs=results.rows.item(i).id + ",'" + results.rows.item(i).name
+ "','" + results.rows.item(i).number+"'";
tblText +='<tr onclick="goPopup('+ tmpArgs + ');"><td>' + results.rows.item(i).id +'</td><td>'
+ results.rows.item(i).name +'</td><td>' + results.rows.item(i).number +'</td></tr>';
}
tblText +="</table>";
document.getElementById("tblDiv").innerHTML =tblText;
}
//Delete query
function deleteRow(tx) {
tx.executeSql('DELETE FROM DEMO WHERE id = ' + currentRow, [], queryDB, errorCB);
}
// Transaction error callback
//
function errorCB(err) {
alert("Error processing SQL: "+err.code);
}
// Transaction success callback
//
function successCB() {
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(queryDB, errorCB);
}
// Cordova is ready
//
function onDeviceReady() {
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(populateDB, errorCB, successCB);
}
//Insert query
//
function insertDB(tx) {
tx.executeSql('INSERT INTO DEMO (name,number) VALUES ("' +document.getElementById("txtName").value
+'","'+document.getElementById("txtNumber").value+'")');
}
function goInsert() {
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(insertDB, errorCB, successCB);
}
function goSearch() {
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(searchQueryDB, errorCB);
}
function goDelete() {
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(deleteRow, errorCB);
document.getElementById('qrpopup').style.display='none';
}
//Show the popup after tapping a row in table
//
function goPopup(row,rowname,rownum) {
currentRow=row;
document.getElementById("qrpopup").style.display="block";
document.getElementById("editNameBox").value = rowname;
document.getElementById("editNumberBox").value = rownum;
}
function editRow(tx) {
tx.executeSql('UPDATE DEMO SET name ="'+document.getElementById("editNameBox").value+
'", number= "'+document.getElementById("editNumberBox").value+ '" WHERE id = '
+ currentRow, [], queryDB, errorCB);
}
function goEdit() {
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(editRow, errorCB);
document.getElementById('qrpopup').style.display='none';
}
</script>
I am using this code for one of my app and it's working fine.
Modifica 1 :
NOTA : Please place your db file in wwww directory like for e.g projectpath/www/dbname.db .
For accessing db file from asset folder.
window.openDatabase({name: "dbname.db", createFromLocation: 1});
Modifica 2:
Just install below plugin in your app .
cordova plugin add https://github.com/brodysoft/Cordova-SQLitePlugin.git
And Try this.
var db = window.sqlitePlugin.openDatabase({name: "my.db", createFromLocation: 1});
