Update 09-00607-sales-person.sql

Author: leetlab11

09-00607-sales-person.sql

@@ -1 +1,30 @@
+-- nested query
+-- select all salesPerson with company RED
+-- select all salesPerson from SalesPerson not in the above table
 
+select sp.name
+from SalesPerson sp
+where sales_id not in
+    (select o.sales_id
+    from Orders o
+    where o.com_id in
+        (select c.com_id 
+        from Company c
+        where c.name = 'RED'))
+
+------------------------------------------------------------------------------------------------------------------------------------------------
+-- JOIN Company c and Ordered o
+-- pick all sales_id with company = 'RED'
+-- pick all salesPerson from SalesPerson not in temp table above
+  
+select sp.name
+from SalesPerson sp
+where sales_id not in
+    (select o.sales_id
+    from Orders o
+    inner join Company c
+    on c.com_id = o.com_id
+    where c.name = 'RED')
+
+
+-- no companies listed