Brewery shop Example

models/customer_demographics.sql

@@ -0,0 +1,20 @@
+with customers as (
+
+    select * from {{ ref('stg_customers') }}
+
+),
+
+demographics as (
+
+    select
+        gender,
+        count(customer_id) as total_customers,
+        avg(age) as average_age
+
+    from customers
+
+    group by gender
+
+)
+
+select * from demographics

models/customers.sql

@@ -51,6 +51,8 @@ final as (
         customers.customer_id,
         customers.first_name,
         customers.last_name,
+        customers.age,
+        customers.gender,
         customer_orders.first_order,
         customer_orders.most_recent_order,
         customer_orders.number_of_orders,

models/inventory_summary.sql

@@ -0,0 +1,20 @@
+with inventory as (
+
+    select * from {{ ref('stg_brewery_inventory') }}
+
+),
+
+summary as (
+
+    select
+        beer_type,
+        sum(quantity) as total_quantity,
+        sum(quantity * price) as total_value
+
+    from inventory
+
+    group by beer_type
+
+)
+
+select * from summary

models/orders.sql

@@ -36,6 +36,7 @@ final as (
         orders.customer_id,
         orders.order_date,
         orders.status,
+        orders.beer_type,
 
         {% for payment_method in payment_methods -%}
 

models/sales_performance.sql

@@ -0,0 +1,20 @@
+with orders as (
+
+    select * from {{ ref('stg_orders') }}
+
+),
+
+sales as (
+
+    select
+        beer_type,
+        count(order_id) as total_orders,
+        sum(case when status = 'completed' then 1 else 0 end) as completed_orders
+
+    from orders
+
+    group by beer_type
+
+)
+
+select * from sales

models/staging/schema.yml

@@ -19,6 +19,22 @@ models:
           - accepted_values:
               values: ['placed', 'shipped', 'completed', 'return_pending', 'returned']
 
+  - name: stg_brewery_inventory
+    columns:
+      - name: inventory_id
+        tests:
+          - unique
+          - not_null
+      - name: beer_type
+        tests:
+          - not_null
+      - name: quantity
+        tests:
+          - not_null
+      - name: price
+        tests:
+          - not_null
+
   - name: stg_payments
     columns:
       - name: payment_id

models/staging/stg_brewery_inventory.sql

@@ -0,0 +1,23 @@
+with source as (
+
+    {#-
+    Normally we would select from the table here, but we are using seeds to load
+    our data in this project
+    #}
+    select * from {{ source('raw_brewery_inventory') }}
+
+),
+
+renamed as (
+
+    select
+        id as inventory_id,
+        beer_type,
+        quantity,
+        price
+
+    from source
+
+)
+
+select * from renamed

models/staging/stg_customers.sql

@@ -13,7 +13,9 @@ renamed as (
     select
         id as customer_id,
         first_name,
-        last_name
+        last_name,
+        age,
+        gender
 
     from source
 

models/staging/stg_orders.sql

@@ -12,9 +12,10 @@ renamed as (
 
     select
         id as order_id,
-        user_id as customer_id,
+        customer_id,
         order_date,
-        status
+        status,
+        beer_type
 
     from source
 

models/staging/stg_payments.sql

@@ -15,8 +15,7 @@ renamed as (
         order_id,
         payment_method,
 
-        -- `amount` is currently stored in cents, so we convert it to dollars
-        amount / 100 as amount
+        amount
 
     from source
 

seeds/raw_brewery_inventory.csv

@@ -0,0 +1,5 @@
+id,beer_type,quantity,price
+1,IPA,100,5.00
+2,Lager,150,4.50
+3,Stout,200,6.00
+4,Pilsner,120,4.75

seeds/raw_customers.csv

@@ -1,101 +1,101 @@
-id,first_name,last_name
-1,Michael,P.
-2,Shawn,M.
-3,Kathleen,P.
-4,Jimmy,C.
-5,Katherine,R.
-6,Sarah,R.
-7,Martin,M.
-8,Frank,R.
-9,Jennifer,F.
-10,Henry,W.
-11,Fred,S.
-12,Amy,D.
-13,Kathleen,M.
-14,Steve,F.
-15,Teresa,H.
-16,Amanda,H.
-17,Kimberly,R.
-18,Johnny,K.
-19,Virginia,F.
-20,Anna,A.
-21,Willie,H.
-22,Sean,H.
-23,Mildred,A.
-24,David,G.
-25,Victor,H.
-26,Aaron,R.
-27,Benjamin,B.
-28,Lisa,W.
-29,Benjamin,K.
-30,Christina,W.
-31,Jane,G.
-32,Thomas,O.
-33,Katherine,M.
-34,Jennifer,S.
-35,Sara,T.
-36,Harold,O.
-37,Shirley,J.
-38,Dennis,J.
-39,Louise,W.
-40,Maria,A.
-41,Gloria,C.
-42,Diana,S.
-43,Kelly,N.
-44,Jane,R.
-45,Scott,B.
-46,Norma,C.
-47,Marie,P.
-48,Lillian,C.
-49,Judy,N.
-50,Billy,L.
-51,Howard,R.
-52,Laura,F.
-53,Anne,B.
-54,Rose,M.
-55,Nicholas,R.
-56,Joshua,K.
-57,Paul,W.
-58,Kathryn,K.
-59,Adam,A.
-60,Norma,W.
-61,Timothy,R.
-62,Elizabeth,P.
-63,Edward,G.
-64,David,C.
-65,Brenda,W.
-66,Adam,W.
-67,Michael,H.
-68,Jesse,E.
-69,Janet,P.
-70,Helen,F.
-71,Gerald,C.
-72,Kathryn,O.
-73,Alan,B.
-74,Harry,A.
-75,Andrea,H.
-76,Barbara,W.
-77,Anne,W.
-78,Harry,H.
-79,Jack,R.
-80,Phillip,H.
-81,Shirley,H.
-82,Arthur,D.
-83,Virginia,R.
-84,Christina,R.
-85,Theresa,M.
-86,Jason,C.
-87,Phillip,B.
-88,Adam,T.
-89,Margaret,J.
-90,Paul,P.
-91,Todd,W.
-92,Willie,O.
-93,Frances,R.
-94,Gregory,H.
-95,Lisa,P.
-96,Jacqueline,A.
-97,Shirley,D.
-98,Nicole,M.
-99,Mary,G.
-100,Jean,M.
+id,first_name,last_name,age,gender
+1,Michael,P.,34,M
+2,Shawn,M.,28,M
+3,Kathleen,P.,45,F
+4,Jimmy,C.,37,M
+5,Katherine,R.,29,F
+6,Sarah,R.,31,F
+7,Martin,M.,40,M
+8,Frank,R.,36,M
+9,Jennifer,F.,27,F
+10,Henry,W.,50,M
+11,Fred,S.,33,M
+12,Amy,D.,42,F
+13,Kathleen,M.,38,F
+14,Steve,F.,41,M
+15,Teresa,H.,30,F
+16,Amanda,H.,35,F
+17,Kimberly,R.,39,F
+18,Johnny,K.,32,M
+19,Virginia,F.,46,F
+20,Anna,A.,25,F
+21,Willie,H.,48,M
+22,Sean,H.,29,M
+23,Mildred,A.,44,F
+24,David,G.,31,M
+25,Victor,H.,37,M
+26,Aaron,R.,28,M
+27,Benjamin,B.,34,M
+28,Lisa,W.,26,F
+29,Benjamin,K.,40,M
+30,Christina,W.,33,F
+31,Jane,G.,45,F
+32,Thomas,O.,36,M
+33,Katherine,M.,27,F
+34,Jennifer,S.,38,F
+35,Sara,T.,32,F
+36,Harold,O.,41,M
+37,Shirley,J.,30,F
+38,Dennis,J.,39,M
+39,Louise,W.,29,F
+40,Maria,A.,35,F
+41,Gloria,C.,47,F
+42,Diana,S.,28,F
+43,Kelly,N.,31,F
+44,Jane,R.,33,F
+45,Scott,B.,42,M
+46,Norma,C.,37,F
+47,Marie,P.,30,F
+48,Lillian,C.,34,F
+49,Judy,N.,29,F
+50,Billy,L.,40,M
+51,Howard,R.,36,M
+52,Laura,F.,32,F
+53,Anne,B.,45,F
+54,Rose,M.,31,F
+55,Nicholas,R.,28,M
+56,Joshua,K.,33,M
+57,Paul,W.,39,M
+58,Kathryn,K.,27,F
+59,Adam,A.,30,M
+60,Norma,W.,41,F
+61,Timothy,R.,35,M
+62,Elizabeth,P.,29,F
+63,Edward,G.,38,M
+64,David,C.,32,M
+65,Brenda,W.,44,F
+66,Adam,W.,28,M
+67,Michael,H.,36,M
+68,Jesse,E.,31,M
+69,Janet,P.,30,F
+70,Helen,F.,47,F
+71,Gerald,C.,34,M
+72,Kathryn,O.,29,F
+73,Alan,B.,40,M
+74,Harry,A.,33,M
+75,Andrea,H.,35,F
+76,Barbara,W.,42,F
+77,Anne,W.,30,F
+78,Harry,H.,39,M
+79,Jack,R.,28,M
+80,Phillip,H.,34,M
+81,Shirley,H.,31,F
+82,Arthur,D.,45,M
+83,Virginia,R.,37,F
+84,Christina,R.,29,F
+85,Theresa,M.,32,F
+86,Jason,C.,36,M
+87,Phillip,B.,30,M
+88,Adam,T.,33,M
+89,Margaret,J.,41,F
+90,Paul,P.,38,M
+91,Todd,W.,29,M
+92,Willie,O.,35,M
+93,Frances,R.,44,F
+94,Gregory,H.,31,M
+95,Lisa,P.,28,F
+96,Jacqueline,A.,30,F
+97,Shirley,D.,39,F
+98,Nicole,M.,27,F
+99,Mary,G.,33,F
+100,Jean,M.,45,F