ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with local SQL databases in AIR
The following code listing defines a SQLStatement instance whose text is a SELECT statement. The statement retrieves
rows containing the firstName and lastName column values of all the rows of a table named employees. This
example uses asynchronous execution mode. When the execution completes, the selectResult() method is called,
and the resulting rows of data are accessed using SQLStatement.getResult() and displayed using the trace()
method. Note that this listing assumes there is a SQLConnection instance named conn that has already been
instantiated and is already connected to the database. It also assumes that the “employees” table has already been
created and populated with data.
import flash.data.SQLConnection;
import flash.data.SQLResult;
import flash.data.SQLStatement;
import flash.events.SQLErrorEvent;
import flash.events.SQLEvent;
// ... create and open the SQLConnection instance named conn ...
// create the SQL statement
var selectStmt:SQLStatement = new SQLStatement();
selectStmt.sqlConnection = conn;
// define the SQL text
var sql:String =
"SELECT firstName, lastName " +
"FROM employees";
selectStmt.text = sql;
// register listeners for the result and error events
selectStmt.addEventListener(SQLEvent.RESULT, selectResult);
selectStmt.addEventListener(SQLErrorEvent.ERROR, selectError);
// execute the statement
selectStmt.execute();
function selectResult(event:SQLEvent):void
{
// access the result data
var result:SQLResult = selectStmt.getResult();
}
var numRows:int = result.data.length;
for (var i:int = 0; i < numRows; i++)
{
var output:String = "";
for (var columnName:String in result.data[i])
{
output += columnName + ": " + result.data[i][columnName] + "; ";
}
trace("row[" + i.toString() + "]\t", output);
}
function selectError(event:SQLErrorEvent):void
{
trace("Error message:", event.error.message);
trace("Details:", event.error.details);
}
Last updated 6/6/2012
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