diff --git a/phpgwapi/inc/adodb/drivers/adodb-oci8.inc.php b/phpgwapi/inc/adodb/drivers/adodb-oci8.inc.php
index a9ec9047e5..17f80e4655 100644
--- a/phpgwapi/inc/adodb/drivers/adodb-oci8.inc.php
+++ b/phpgwapi/inc/adodb/drivers/adodb-oci8.inc.php
@@ -30,8 +30,8 @@ For Oracle the default is dd-mon-yy or dd-mon-yyyy, and for SQL-92 the default i
 yy-mm-dd or yyyy-mm-dd.
 
 Using 'RR' in the format forces two-digit years less than or equal to 49 to be
-interpreted as years in the 21st century (2000–2049), and years over 50 as years in
-the 20th century (1950–1999). Setting the RR format as the default for all two-digit
+interpreted as years in the 21st century (2000�2049), and years over 50 as years in
+the 20th century (1950�1999). Setting the RR format as the default for all two-digit
 year entries allows you to become year-2000 compliant. For example:
 NLS_DATE_FORMAT='RR-MM-DD'
 
@@ -72,7 +72,7 @@ class ADODB_oci8 extends ADOConnection {
 	var $_dropSeqSQL = "DROP SEQUENCE %s";
 	var $hasAffectedRows = true;
 	var $random = "abs(mod(DBMS_RANDOM.RANDOM,10000001)/10000000)";
-	var $noNullStrings = false;
+	var $noNullStrings = true;
 	var $connectSID = false;
 	var $_bind = false;
 	var $_hasOCIFetchStatement = false;