Project1

.gitignore

@@ -127,3 +127,4 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+scratch/

Project1/README.md

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+# Project 1
+
+### How many users do we have?
+130
+
+```sql
+SELECT COUNT(user_guid) FROM dev_db.dbt_danieloutschoolcom.stg_postgres__users;
+```
+
+### On average, how many orders do we receive per hour?
+5.416668
+
+```sql
+WITH orders_received_hourly as (
+SELECT date_trunc('hour', created_at) as hour_received
+, COUNT(*) as num_received_this_hour
+FROM dev_db.dbt_danieloutschoolcom.stg_postgres__orders
+GROUP BY 1
+)
+
+SELECT AVG(num_received_this_hour) as average_num_orders_received_hourly
+FROM orders_received_hourly;
+```
+
+### On average, how long does an order take from being placed to being delivered?
+
+93.4
+
+```sql
+with delivery_hours as
+(
+    SELECT created_at
+    , delivered_at
+    , datediff(hour, created_at, delivered_at) as hours_to_deliver
+    FROM dev_db.dbt_danieloutschoolcom.stg_postgres__orders
+    WHERE status = 'delivered'
+)
+
+SELECT round(AVG(hours_to_deliver), 2)
+FROM delivery_hours
+;
+```
+
+### How many users have only made one purchase? Two purchases? Three+ purchases?
+1 purchase = 25 users
+2 purchases = 28 users
+3 or more purchass = 71
+
+```sql
+WITH orders_per_user_table as (
+    SELECT user_guid
+    , COUNT(distinct order_guid) as orders_per_user
+    FROM dev_db.dbt_danieloutschoolcom.stg_postgres__orders
+    GROUP BY user_guid
+)
+
+SELECT orders_per_user
+, COUNT(distinct user_guid) as users_with_this_many_orders
+FROM orders_per_user_table
+GROUP BY orders_per_user
+;
+```
+
+```sql
+WITH orders_per_user_table as (
+    SELECT user_guid
+    , COUNT(distinct order_guid) as orders_per_user
+    FROM dev_db.dbt_danieloutschoolcom.stg_postgres__orders
+    GROUP BY user_guid
+),
+
+user_order_counts as (
+    SELECT orders_per_user
+    , COUNT(distinct user_guid) as num_users_with_this_many_orders
+    FROM orders_per_user_table
+    GROUP BY orders_per_user
+)
+
+SELECT SUM(num_users_with_this_many_orders) as num_users_with_three_or_more_orders
+FROM user_order_counts
+WHERE orders_per_user >= 3
+;
+```
+
+### Note: you should consider a purchase to be a single order. In other words, if a user places one order for 3 products, they are considered to have made 1 purchase.
+
+### On average, how many unique sessions do we have per hour?
+
+16.33
+
+```sql
+WITH unique_sessions_per_hour as (
+    SELECT date_trunc(hour, created_at) as created_hour
+    , COUNT(distinct session_guid) as sessions_per_hour
+    FROM dev_db.dbt_danieloutschoolcom.stg_postgres__events
+    GROUP BY created_hour
+)
+
+SELECT round(AVG(sessions_per_hour), 2)
+FROM unique_sessions_per_hour
+;
+```

greenery/.gitignore

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+
+target/
+dbt_packages/
+logs/

greenery/README.md

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+Welcome to your new dbt project!
+
+### Using the starter project
+
+Try running the following commands:
+- dbt run
+- dbt test
+
+
+### Resources:
+- Learn more about dbt [in the docs](https://docs.getdbt.com/docs/introduction)
+- Check out [Discourse](https://discourse.getdbt.com/) for commonly asked questions and answers
+- Join the [chat](https://community.getdbt.com/) on Slack for live discussions and support
+- Find [dbt events](https://events.getdbt.com) near you
+- Check out [the blog](https://blog.getdbt.com/) for the latest news on dbt's development and best practices

greenery/dbt_project.yml

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+
+# Name your project! Project names should contain only lowercase characters
+# and underscores. A good package name should reflect your organization's
+# name or the intended use of these models
+name: 'greenery'
+version: '1.0.0'
+config-version: 2
+
+# This setting configures which "profile" dbt uses for this project.
+profile: 'greenery'
+
+# These configurations specify where dbt should look for different types of files.
+# The `model-paths` config, for example, states that models in this project can be
+# found in the "models/" directory. You probably won't need to change these!
+model-paths: ["models"]
+analysis-paths: ["analyses"]
+test-paths: ["tests"]
+seed-paths: ["seeds"]
+macro-paths: ["macros"]
+snapshot-paths: ["snapshots"]
+
+target-path: "target"  # directory which will store compiled SQL files
+clean-targets:         # directories to be removed by `dbt clean`
+  - "target"
+  - "dbt_packages"
+
+
+# Configuring models
+# Full documentation: https://docs.getdbt.com/docs/configuring-models
+
+# In this example config, we tell dbt to build all models in the example/
+# directory as views. These settings can be overridden in the individual model
+# files using the `{{ config(...) }}` macro.
+models:
+  greenery:
+    # Config indicated by + and applies to all files under models/example/
+    example:
+      +materialized: view

greenery/models/example/my_first_dbt_model.sql

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+
+/*
+    Welcome to your first dbt model!
+    Did you know that you can also configure models directly within SQL files?
+    This will override configurations stated in dbt_project.yml
+
+    Try changing "table" to "view" below
+*/
+
+{{ config(materialized='table') }}
+
+with source_data as (
+
+    select 1 as id
+    union all
+    select null as id
+
+)
+
+select *
+from source_data
+
+/*
+    Uncomment the line below to remove records with null `id` values
+*/
+
+-- where id is not null

greenery/models/example/my_second_dbt_model.sql

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+
+-- Use the `ref` function to select from other models
+
+select *
+from {{ ref('my_first_dbt_model') }}
+where id = 1

greenery/models/example/schema.yml

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+
+version: 2
+
+models:
+  - name: my_first_dbt_model
+    description: "A starter dbt model"
+    columns:
+      - name: id
+        description: "The primary key for this table"
+        tests:
+          - unique
+
+  - name: my_second_dbt_model
+    description: "A starter dbt model"
+    columns:
+      - name: id
+        description: "The primary key for this table"
+        tests:
+          - unique
+          - not_null