filter

orders/db/performance_example_schema.cds

@@ -41,18 +41,42 @@ entity OrderItemsViewAssoc as projection on Orders;
 
 // sort on right table 
 view SortedOrdersJoin as select 
-    OrderNo, 
+    OrdersHeaders.ID        as Header_ID, 
-    buyer, 
+    OrdersHeaders.OrderNo   as OrderNo, 
-    currency,
+    OrdersHeaders.buyer     as buyer, 
-    Item_ID,
+    OrdersHeaders.currency  as currency,
-    product,
+    OrdersItems.ID          as Item_ID,
-    quantity,
+    OrdersItems.product     as product,
-    title,
+    OrdersItems.quantity    as quantity,
-    price    
+    OrdersItems.title       as title,
-from OrdersItemsViewJoin 
+    OrdersItems.price       as price
+from OrdersHeaders JOIN OrdersItems on OrdersHeaders.ID = OrdersItems.Header
 order by title;
 
 // sort on items and join back to header via assoc
 view SortedOrdersAssoc as select
 from OrdersItems {*, Header.OrderNo, Header.buyer, Header.currency }
 order by OrdersItems.title;
+
+// filter on right table 
+view FilteredOrdersJoin as select 
+    OrdersHeaders.ID        as Header_ID, 
+    OrdersHeaders.OrderNo   as OrderNo, 
+    OrdersHeaders.buyer     as buyer, 
+    OrdersHeaders.currency  as currency,
+    OrdersItems.ID          as Item_ID,
+    OrdersItems.product     as product,
+    OrdersItems.quantity    as quantity,
+    OrdersItems.title       as title,
+    OrdersItems.price       as price
+from OrdersHeaders JOIN OrdersItems on OrdersHeaders.ID = OrdersItems.Header
+where price > 100;
+
+// filter on items and join back to header via assoc
+view FilteredOrdersAssoc as select
+from OrdersItems {*, Header.OrderNo, Header.buyer, Header.currency }
+where OrdersItems.price > 100;
+
+
+
+