diff --git a/others/db_changes/struct/create_pers.xml b/others/db_changes/struct/create_pers.xml
index 6943d73ad9557d0e573406329e3d4d5f0fddfae8..3754a5ab31c55de620345bf6efa861dc44c48d0e 100644
--- a/others/db_changes/struct/create_pers.xml
+++ b/others/db_changes/struct/create_pers.xml
@@ -6,10 +6,14 @@
 			<constraints primaryKey="true" primaryKeyName="PK_PERS_PERSID"/>
 		</column>
 		<column name="DATE_EDIT" type="TIMESTAMP"/>
-		<column name="DATE_NEW" type="TIMESTAMP"/>
+		<column name="DATE_NEW" type="TIMESTAMP">
+                    <constraints nullable="false"/>
+                </column>
 		<column name="DATEOFBIRTH" type="DATE"/>
 		<column name="USER_EDIT" type="NVARCHAR(50)"/>
-		<column name="USER_NEW" type="NVARCHAR(50)"/>
+		<column name="USER_NEW" type="NVARCHAR(50)">
+                    <constraints nullable="false"/>
+                </column>
 		<column name="FIRSTNAME" type="NVARCHAR(50)"/>
 		<column name="MIDDLENAME" type="NVARCHAR(50)"/>
 		<column name="LASTNAME" type="NVARCHAR(50)">