Quote identifiers for oracle

lib/private/db/oracleconnection.php

@@ -47,4 +47,31 @@ class OracleConnection extends Connection {
 		$identifier = $this->quoteKeys($identifier);
 		return parent::delete($tableName, $identifier);
 	}
+
+	/**
+	 * Drop a table from the database if it exists
+	 *
+	 * @param string $table table name without the prefix
+	 */
+	public function dropTable($table) {
+		$table = $this->tablePrefix . trim($table);
+		$table = $this->quoteIdentifier($table);
+		$schema = $this->getSchemaManager();
+		if($schema->tablesExist(array($table))) {
+			$schema->dropTable($table);
+		}
+	}
+
+	/**
+	 * Check if a table exists
+	 *
+	 * @param string $table table name without the prefix
+	 * @return bool
+	 */
+	public function tableExists($table){
+		$table = $this->tablePrefix . trim($table);
+		$table = $this->quoteIdentifier($table);
+		$schema = $this->getSchemaManager();
+		return $schema->tablesExist(array($table));
+	}
 }