--- /dev/null
+-- @tag: warehouse_alter_chargenumber
+-- @description: Chargennummber von NULL auf '' aktualisieren
+-- @depends: release_2_6_3
+-- @charset: utf-8
+UPDATE inventory set chargenumber='' where chargenumber IS NULL;
+ALTER TABLE inventory ALTER COLUMN chargenumber SET NOT NULL;
+ALTER TABLE inventory ALTER COLUMN chargenumber SET default '';
+