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diff --git a/framework/main/classes/database/class_BaseDatabaseBackend.php b/framework/main/classes/database/class_BaseDatabaseBackend.php
deleted file mode 100644
index fb3bab62..00000000
--- a/framework/main/classes/database/class_BaseDatabaseBackend.php
+++ /dev/null
@@ -1,103 +0,0 @@
-<?php
-// Own namespace
-namespace CoreFramework\Database\Backend;
-
-// Import framework stuff
-use CoreFramework\Database\Backend\DatabaseBackend;
-use CoreFramework\Generic\FrameworkException;
-use CoreFramework\Object\BaseFrameworkSystem;
-
-/**
- * An abstract database access class for handling database I/O requests
- *
- * @see			DatabaseBackend - An interface for database backends
- * @author		Roland Haeder <webmaster@shipsimu.org>
- * @version		0.0.0
- * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2017 Core Developer Team
- * @license		GNU GPL 3.0 or any newer version
- * @link		http://www.shipsimu.org
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-abstract class BaseDatabaseBackend extends BaseFrameworkSystem implements DatabaseBackend {
-	// Constants for exceptions
-	const EXCEPTION_SQL_QUERY = 0x140;
-
-	// Result array indexes
-	const RESULT_INDEX_ROWS      = 'rows';
-	const RESULT_INDEX_STATUS    = 'status';
-	const RESULT_INDEX_EXCEPTION = 'exception';
-
-	// Constants for MySQL backward-compatiblity (PLEASE FIX THEM!)
-	const DB_CODE_TABLE_MISSING     = 0x100;
-	const DB_CODE_TABLE_UNWRITEABLE = 0x101;
-	const DB_CODE_DATA_FILE_CORRUPT = 0x102;
-
-	// Status results
-	const RESULT_OKAY = 'ok';
-
-	/**
-	 * Last thrown exception or NULL if all is fine
-	 */
-	private $lastException = NULL;
-
-	/**
-	 * Protected constructor
-	 *
-	 * @param	$className	Name of the class
-	 * @return	void
-	 */
-	protected function __construct ($className) {
-		// Call parent constructor
-		parent::__construct($className);
-	}
-
-	/**
-	 * Getter for last exception
-	 *
-	 * @return	$lastException	Last thrown exception
-	 */
-	public final function getLastException () {
-		return $this->lastException;
-	}
-
-	/**
-	 * Setter for last exception
-	 *
-	 * @param	$lastException	Last thrown exception
-	 * @return	void
-	 */
-	public final function setLastException (FrameworkException $exceptionInstance) {
-		$this->lastException = $exceptionInstance;
-	}
-
-	/**
-	 * Reset the last exception instance. This should be done after a "query"
-	 * was completed without any errors.
-	 *
-	 * @return	void
-	 */
-	protected final function resetLastException () {
-		$this->lastException = NULL;
-	}
-
-	/**
-	 * Removes non-public data from given array.
-	 *
-	 * @param	$data	An array with possible non-public data that needs to be removed.
-	 * @return	$data	A cleaned up array with only public data.
-	 */
-	public abstract function removeNonPublicDataFromArray (array $data);
-
-}