Below you can find examples of SQL statements(SELECT, INSERT, UPDATE, DELETE).

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml"
    layout="absolute"
    creationComplete="init()" viewSourceURL="srcview/index.html">

    <mx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;

            private var sqlConn:SQLConnection;
            private var sqlFile:File;
            private var categories:ArrayCollection;

            private function init():void
            {
                sqlFile = File.applicationStorageDirectory.resolvePath("DBSample.db");
                sqlConn = new SQLConnection();
                sqlConn.open(sqlFile, SQLMode.CREATE);
            }

            private function createCategories():void
            {
                var stmt:SQLStatement = new SQLStatement();
                stmt.sqlConnection = sqlConn;
                stmt.text = "CREATE TABLE IF NOT EXISTS categories(" +
                                    "categoryid INTEGER PRIMARY KEY AUTOINCREMENT," +
                                    "name TEXT)";

                stmt.execute();
                var result:SQLResult = stmt.getResult();

                categories = new ArrayCollection(result.data);
            }

            private function getCategories():void
            {
                var stmt:SQLStatement = new SQLStatement();
                stmt.sqlConnection = sqlConn;
                stmt.text = "SELECT * FROM categories ORDER BY categoryid DESC";

                stmt.execute();
                var result:SQLResult = stmt.getResult();
            }

            private function addCategory(value:String):void
            {
                var stmt:SQLStatement = new SQLStatement();
                stmt.sqlConnection = sqlConn;
                // Statement
                stmt.text = "INSERT INTO categories " +
                                    "(name) VALUES (:name)";
                stmt.parameters[":name"] = value;
                //OR Statement
                stmt.text = "INSERT INTO categories " +
                                    "(name) VALUES ('"+value+"')";

                stmt.execute();
                var result:SQLResult = stmt.getResult();
            }

            private function updateCategory(name:String, categoryid:int):void
            {
                var stmt:SQLStatement = new SQLStatement();
                stmt.sqlConnection = sqlConn;
                stmt.text = "UPDATE categories " +
                                    "SET name='"+name+"'" +
                                    "WHERE " +
                                    "categoryid='"+categoryid+"'";

                stmt.execute();
                var result:SQLResult = stmt.getResult();

                getCategories();
            }

            private function removeCategory(categoryid:int):void
            {
                var stmt:SQLStatement = new SQLStatement();
                stmt.sqlConnection = sqlConn;
                // Statement
                stmt.text = "DELETE FROM categories WHERE categoryid=:categoryid";
                stmt.parameters[":categoryid"] = categoryid;
                // OR Statement
                stmt.text = "DELETE FROM categories WHERE categoryid='"+categoryid+"'";

                stmt.execute();
                var result:SQLResult = stmt.getResult();

                getCategories();
            }

        ]]>
    </mx:Script>
</mx:WindowedApplication>