如何在PhoneGap中使用数据库？

<plugin name="cordova-sqlite-storage" source="npm" />

cordova plugin add cordova-sqlite-storage

var db = window.sqlitePlugin.openDatabase({name: "my.db"});

db.transaction(function(tx) {
    tx.executeSql('CREATE TABLE IF NOT EXISTS demo (id integer primary key, data text)');
});

db.transaction(function(tx) {
    tx.executeSql('INSERT INTO demo (data) VALUES (?)', ['hello world']);
});

db.transaction(function(tx) {
    tx.executeSql('SELECT * FROM demo', [], function(tx, results) {
        var len = results.rows.length;
        for (var i = 0; i < len; i++) {
            var row = results.rows.item(i);
            console.log(row.id + ": " + row.data);
        }
    }, null);
});