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       http://www.apache.org/licenses/LICENSE-2.0

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     "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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     specific language governing permissions and limitations
     under the License.

SQLResultSetList

One of the properties of the SQLResultSet containing the rows returned from a SQL query.

Properties

length: the number of rows returned by the SQL query

Methods

item: returns the row at the specified index represented by a JavaScript object.

Details

The SQLResultSetList contains the data returned from a SQL select statement. The object contains a length property letting you know how many rows the select statement has been returned. To get a row of data you would call the item method specifing an index. The item method returns a JavaScript Object who's properties are the columns of the database the select statement was executed against.

Supported Platforms

Android
BlackBerry WebWorks (OS 6.0 and higher)
iPhone
webOS

Execute SQL Quick Example

function queryDB(tx) {
	tx.executeSql('SELECT * FROM DEMO', [], querySuccess, errorCB);
}

function querySuccess(tx, results) {
	var len = results.rows.length;
   	console.log("DEMO table: " + len + " rows found.");
   	for (var i=0; i<len; i++){
        console.log("Row = " + i + " ID = " + results.rows.item(i).id + " Data =  " + results.rows.item(i).data);
	}
}

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

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

Full Example

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

    <script type="text/javascript" charset="utf-8" src="cordova-1.8.0.js"></script>
    <script type="text/javascript" charset="utf-8">

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

	// 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")');
	}

	// Query the database
	//
	function queryDB(tx) {
		tx.executeSql('SELECT * FROM DEMO', [], querySuccess, errorCB);
	}

	// Query the success callback
	//
	function querySuccess(tx, results) {
		var len = results.rows.length;
		console.log("DEMO table: " + len + " rows found.");
		for (var i=0; i<len; i++){
			console.log("Row = " + i + " ID = " + results.rows.item(i).id + " Data =  " + results.rows.item(i).data);
		}
	}

	// Transaction error callback
	//
	function errorCB(err) {
		console.log("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);
	}

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