diff --git a/backend/src/main/java/com/example/backend/anwprj/DataBaseHandler.java b/backend/src/main/java/com/example/backend/anwprj/DataBaseHandler.java
index 33d1108..2e82714 100644
--- a/backend/src/main/java/com/example/backend/anwprj/DataBaseHandler.java
+++ b/backend/src/main/java/com/example/backend/anwprj/DataBaseHandler.java
@@ -265,7 +265,7 @@ public class DataBaseHandler
     {
         try
         {
-            st.executeUpdate("insert into SEMESTER (startweeknumber, endweeknumber, name, startyear, endyear) values (" + s.getStartweeknumber() + ", " + s.getEndweeknumber() + ", '" + s.getName() + "', " + s.getStartyear() + ", " + s.getEndyear() + ")");
+            st.executeUpdate("insert into SEMESTER (startday, endday, name, startyear, endyear) values (" + s.getStartday() + ", " + s.getEndday() + ", '" + s.getName() + "', " + s.getStartyear() + ", " + s.getEndyear() + ")");
             return getSemester(s.getName());
 
         } catch (Exception e)
@@ -278,8 +278,8 @@ public class DataBaseHandler
     {
         try
         {
-            st.executeUpdate("update semester set startweeknumber=" + semester.getStartweeknumber() + ", " +
-                    "endweeknumber=" + semester.getEndweeknumber() + ", " +
+            st.executeUpdate("update semester set startday=" + semester.getStartday() + ", " +
+                    "endday=" + semester.getEndday() + ", " +
                     "name='" + semester.getName() + "', " +
                     "startyear=" + semester.getStartyear() + ", " +
                     "endyear=" + semester.getEndyear() + " where id=" + semester.getId());
@@ -299,8 +299,8 @@ public class DataBaseHandler
             rs.next();
             return new Semester(
                     rs.getInt("id"),
-                    rs.getInt("startweeknumber"),
-                    rs.getInt("endweeknumber"),
+                    rs.getInt("startday"),
+                    rs.getInt("endday"),
                     rs.getString("name"),
                     rs.getInt("startyear"),
                     rs.getInt("endyear")