Index: t3lib/cache/backend/class.t3lib_cache_backend_dbbackend.php
===================================================================
--- t3lib/cache/backend/class.t3lib_cache_backend_dbbackend.php	(revision 7290)
+++ t3lib/cache/backend/class.t3lib_cache_backend_dbbackend.php	(working copy)
@@ -288,8 +288,8 @@
 	 * @author Ingo Renner <ingo@typo3.org>
 	 */
 	public function flush() {
-		$GLOBALS['TYPO3_DB']->sql_query('TRUNCATE ' . $this->cacheTable);
-		$GLOBALS['TYPO3_DB']->sql_query('TRUNCATE ' . $this->tagsTable);
+		$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery($this->cacheTable);
+		$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery($this->tagsTable);
 	}
 
 	/**
Index: t3lib/class.t3lib_tcemain.php
===================================================================
--- t3lib/class.t3lib_tcemain.php	(revision 7291)
+++ t3lib/class.t3lib_tcemain.php	(working copy)
@@ -7416,22 +7416,22 @@
 
 					if (TYPO3_UseCachingFramework) {
 						if (t3lib_extMgm::isLoaded('cms'))	{
-							$GLOBALS['TYPO3_DB']->exec_DELETEquery('cache_treelist', '');
+							$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery('cache_treelist');
 						}
 					} else {
 						if (t3lib_extMgm::isLoaded('cms'))	{
-							$GLOBALS['TYPO3_DB']->exec_DELETEquery('cache_treelist', '');
-							$GLOBALS['TYPO3_DB']->exec_DELETEquery('cache_pagesection','');
+							$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery('cache_treelist');
+							$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery('cache_pagesection');
 						}
 						$this->internal_clearPageCache();
-						$GLOBALS['TYPO3_DB']->exec_DELETEquery('cache_hash','');
+						$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery('cache_hash');
 					}
 
 						// Clearing additional cache tables:
 					if (is_array($TYPO3_CONF_VARS['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['clearAllCache_additionalTables']))	{
 						foreach($TYPO3_CONF_VARS['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['clearAllCache_additionalTables'] as $tableName)	{
 							if (!preg_match('/[^[:alnum:]_]/',$tableName) && substr($tableName,-5)=='cache')	{
-								$GLOBALS['TYPO3_DB']->exec_DELETEquery($tableName,'');
+								$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery($tableName);
 							} else {
 								die('Fatal Error: Trying to flush table "'.$tableName.'" with "Clear All Cache"');
 							}
@@ -7626,7 +7626,7 @@
 						t3lib_div::sysLog('Could not remove page cache files in "'.$cacheDir.'"','Core/t3lib_tcemain',2);
 					}
 				}
-				$GLOBALS['TYPO3_DB']->exec_DELETEquery('cache_pages','');
+				$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery('cache_pages');
 			}
 		}
 	}
Index: typo3/mod/tools/em/class.em_xmlhandler.php
===================================================================
--- typo3/mod/tools/em/class.em_xmlhandler.php	(revision 7290)
+++ typo3/mod/tools/em/class.em_xmlhandler.php	(working copy)
@@ -370,7 +370,7 @@
 			$this->revStateArr[$state] = $idx++;
 		}
 
-		$GLOBALS['TYPO3_DB']->exec_DELETEquery('cache_extensions', '1=1');
+		$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery('cache_extensions');
 
 		$extcount = 0;
 		@ini_set('pcre.backtrack_limit', 500000);
Index: typo3/sysext/tsconfig_help/mod1/index.php
===================================================================
--- typo3/sysext/tsconfig_help/mod1/index.php	(revision 7290)
+++ typo3/sysext/tsconfig_help/mod1/index.php	(working copy)
@@ -727,7 +727,7 @@
 		if ($extension != '')	{
 			$GLOBALS['TYPO3_DB']->exec_DELETEquery('static_tsconfig_help', 'guide='.$guide);
 		} else {
-			$GLOBALS['TYPO3_DB']->exec_DELETEquery('static_tsconfig_help', '');
+			$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery('static_tsconfig_help');
 		}
 	}
 
Index: typo3/sysext/install/mod/class.tx_install.php
===================================================================
--- typo3/sysext/install/mod/class.tx_install.php	(revision 7290)
+++ typo3/sysext/install/mod/class.tx_install.php	(working copy)
@@ -1889,7 +1889,7 @@
 		$action = $this->INSTALL['cleanup_type'];
 
 		if (($action == 'cache_imagesizes' || $action == 'all') && isset ($tables['cache_imagesizes'])) {
-			$GLOBALS['TYPO3_DB']->exec_DELETEquery ('cache_imagesizes','');
+			$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery('cache_imagesizes');
 		}
 
 		$cleanupType = array (
@@ -6309,7 +6309,7 @@
 							if ($table!='--div--') {
 								$table_c = TYPO3_OS=='WIN' ? strtolower($table) : $table;
 								if ($this->INSTALL['database_clearcache'][$table] && $whichTables[$table_c]) {
-									$GLOBALS['TYPO3_DB']->exec_DELETEquery($table, '');
+									$GLOBALS['TYPO3_DB']->exec_TRUNCATEquery($table);
 										// Define the markers content
 									$emptiedTablesMarkers = array(
 										'tableName' => $table