CLI

sql/get_top.sql

@@ -0,0 +1,64 @@
+    SELECT
+      description,
+      sku,
+      level2,
+      level3,
+      revenue,
+      quantity,
+      trend
+    from
+      (
+        SELECT
+        *,
+          ROW_NUMBER () OVER (
+            PARTITION BY level2
+            ORDER BY
+              SUM(revenue) DESC
+          ) rownum,
+          SUM(revenue) OVER (PARTITION BY level2) total,
+          ROUND(SUM(revenue), 2) as revenue,
+          SUM(quantity) as quantity,
+          trend
+        FROM
+          (
+            select
+              *,
+              cast(past as float) / 3 as past,
+              round(
+                cast(present as float) /(cast(past as float) / 3.0),
+                2
+              ) as trend
+            from
+              (
+                select
+                  *,
+                  sum(quantity) FILTER (
+                    WHERE
+                      year = $year
+                      and month between $($month - 4)
+                      and $($month - 1)
+                  ) over (PARTITION BY description) as past,
+                  sum(quantity) FILTER (
+                    WHERE
+                      year = $year
+                      and month = %[2]s
+                  ) over (PARTITION BY description) as present
+                from
+                  data
+              )
+          )
+        where
+          year = %[1]s
+          and month = %[2]s
+        GROUP BY
+          description
+        ORDER BY
+          total DESC
+      )
+    WHERE
+      rownum <= 10
+      and revenue > 0
+    order by
+      (sum(revenue) over (
+        partition by level2
+      )) desc;