The long awaited DbHelper

core/DataAccess/ArchiveTableCreator.php

core/Db/BatchInsert.php

core/Db/Schema/Myisam.php

core/FrontController.php

core/Piwik.php

core/Tracker.php

index.php

plugins/Installation/Controller.php

plugins/Installation/FormDatabaseSetup.php

plugins/SecurityInfo

tests/PHPUnit/DatabaseTestCase.php

tests/PHPUnit/IntegrationTestCase.php

tests/PHPUnit/UITest.php

tests/PHPUnit/bootstrap.php