diff --git a/BDL/increase_number_lengths.sql b/BDL/increase_number_lengths.sql
new file mode 100644
index 0000000..92b69e7
--- /dev/null
+++ b/BDL/increase_number_lengths.sql
@@ -0,0 +1,17 @@
+ALTER TABLE Staff MODIFY (Salary NUMBER(8,2));
+
+ALTER TABLE Product MODIFY (Stock_Count NUMBER(6),
+                            Restock_Level NUMBER(6),
+                            Minimum_Level NUMBER(6),
+                            List_Price NUMBER(8,2));
+
+ALTER TABLE Component MODIFY (Stock_Count NUMBER(8));
+
+ALTER TABLE Assembly MODIFY (Quantity NUMBER(5));
+
+ALTER TABLE Sale_Line MODIFY (Quantity NUMBER(5),
+                              Actual_Price NUMBER(8,2));
+
+ALTER TABLE Order_Line MODIFY (Qty_Ordered NUMBER(6),
+                               Price NUMBER(7,2),
+                               Qty_Received NUMBER(6));