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Michael Myaskovsky via Elementary: Simplify customers model SQL #185

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Michael Myaskovsky via Elementary: Simplify customers model SQL #185

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86 changes: 1 addition & 85 deletions models/customers.sql
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Original file line number Diff line number Diff line change
@@ -1,85 +1 @@
with customers as (

select * from {{ ref('stg_customers') }}

),

orders as (

select * from {{ ref('stg_orders') }}

),

payments as (

select * from {{ ref('stg_payments') }}

),

signups as (

select * from {{ ref('stg_signups') }}
),

customer_orders as (

select
customer_id,

min(order_date) as first_order,
max(order_date) as most_recent_order,
count(order_id) as number_of_orders
from orders

group by customer_id

),

customer_payments as (

select
orders.customer_id,
sum(amount) as total_amount

from payments

left join orders on
payments.order_id = orders.order_id

group by orders.customer_id

),

final as (

select
customers.customer_id,
customers.first_name,
customers.last_name,
customer_orders.first_order,
customer_orders.most_recent_order,
case
when customer_orders.number_of_orders is null then 0
else customer_orders.number_of_orders
end as number_of_orders,
customer_payments.total_amount as customer_lifetime_value,
signups.customer_email,
{% if elementary.get_config_var('anomalies') %}
signups.customer_email as customer_email_2,
{% endif %}
signups.signup_date

from customers

left join customer_orders
on customers.customer_id = customer_orders.customer_id

left join customer_payments
on customers.customer_id = customer_payments.customer_id

left join signups
on customers.customer_id = signups.customer_id

)

select * from final
SELECT * FROM {{ ref('stg_customers') }}