SQLTransaction

Ermöglicht die Ausführung von SQL-Anweisungen für die Datenbank.

Methoden

  • ExecuteSql: führt eine SQL­Anweisung.

Informationen

Aufrufen einer Database -Methode des Objekts Transaktion, Pässe ein SQLTransaction Objekt, das die angegebene Callback-Methode.

Unterstützte Plattformen

  • Android
  • BlackBerry WebWorks (OS 6.0 und höher)
  • iOS
  • Tizen

Führen Sie SQL-schnelles-Beispiel

function populateDB(tx) {
    tx.executeSql('DROP TABLE IF EXISTS DEMO');
    tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique, data)');
    tx.executeSql('INSERT INTO DEMO (id, data) VALUES (1, "First row")');
    tx.executeSql('INSERT INTO DEMO (id, data) VALUES (2, "Second row")');
}

function errorCB(err) {
    alert("Error processing SQL: "+err);
}

function successCB() {
    alert("success!");
}

var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(populateDB, errorCB, successCB);

Vollständiges Beispiel

<!DOCTYPE html>
<html>
  <head>
    <title>Storage Example</title>

    <script type="text/javascript" charset="utf-8" src="cordova.js"></script>
    <script type="text/javascript" charset="utf-8">

    // Wait for device API libraries to load
    //
    document.addEventListener("deviceready", onDeviceReady, false);

    // device APIs are available
    //
    function onDeviceReady() {
        var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
        db.transaction(populateDB, errorCB, successCB);
    }

    // Populate the database
    //
    function populateDB(tx) {
        tx.executeSql('DROP TABLE IF EXISTS DEMO');
        tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique, data)');
        tx.executeSql('INSERT INTO DEMO (id, data) VALUES (1, "First row")');
        tx.executeSql('INSERT INTO DEMO (id, data) VALUES (2, "Second row")');
    }

    // Transaction error callback
    //
    function errorCB(err) {
        alert("Error processing SQL: "+err);
    }

    // Transaction success callback
    //
    function successCB() {
        alert("success!");
    }

    </script>
  </head>
  <body>
    <h1>Example</h1>
    <p>SQLTransaction</p>
  </body>
</html>