From 0f8fd8a9b67a1157f38db5db649361e03ab3b1b3 Mon Sep 17 00:00:00 2001
From: Nick Chambers <uplime@spookyinternet.com>
Date: Sun, 25 Jul 2021 18:47:46 -0500
Subject: [PATCH] sql/mystery.sql: solution (and spoilers) for
 https://mystery.knightlab.com/

---
 sql/mystery.sql | 140 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 sql/mystery.sql

diff --git a/sql/mystery.sql b/sql/mystery.sql
new file mode 100644
index 0000000..329c9bf
--- /dev/null
+++ b/sql/mystery.sql
@@ -0,0 +1,140 @@
+--
+-- Steps taken to solve https://mystery.knightlab.com/
+--
+
+SELECT description
+FROM crime_scene_report
+WHERE type = "murder"
+  AND city = "SQL City"
+  AND date = 20180115
+;
+
+--
+-- Security footage shows that there were 2 witnesses. The first witness lives
+-- at the last house on "Northwestern Dr". The second witness, named Annabel,
+-- lives somewhere on "Franklin Ave".
+--
+
+SELECT id, name, license_id, address_number, ssn
+FROM person
+WHERE name LIKE 'Annabel %'
+;
+
+--
+-- 16371  Annabel Miller  490173  103 318771143
+--
+
+SELECT transcript
+FROM interview
+WHERE person_id = 16371
+;
+
+--
+-- I saw the murder happen, and I recognized the killer from my gym when I was
+-- working out last week on January the 9th.
+--
+
+SELECT id, name, license_id, address_number, ssn
+FROM person
+WHERE address_street_name = "Northwestern Dr"
+ORDER BY address_number DESC
+LIMIT 1
+;
+
+--
+-- 14887  Morty Schapiro  118009  4919  111564949
+--
+
+SELECT transcript
+FROM interview
+WHERE person_id = 14887
+;
+
+--
+-- I heard a gunshot and then saw a man run out. He had a "Get Fit Now Gym" bag.
+-- The membership number on the bag started with "48Z". Only gold members have
+-- those bags. The man got into a car with a plate that included "H42W".
+--
+
+SELECT person.name
+FROM person
+JOIN drivers_license
+  ON person.license_id = drivers_license.id
+WHERE drivers_license.plate_number LIKE 'H42W%'
+;
+
+--
+-- Maxine Whitely
+--
+
+SELECT id, name
+FROM get_fit_now_member
+WHERE membership_status = 'gold'
+  AND id LIKE '48Z%'
+;
+
+--
+-- 48Z7A  Joe Germuska
+-- 48Z55  Jeremy Bowers
+--
+
+SELECT person.name, interview.transcript
+FROM interview
+JOIN person
+  ON interview.person_id = person.id
+WHERE person.name IN ('Jeremy Bowers', 'Joe Germuska')
+;
+
+--
+-- Jeremy Bowers  I was hired by a woman with a lot of money. I don't know her
+-- name but I know she's around 5'5" (65") or 5'7" (67"). She has red hair and
+-- she drives a Tesla Model S. I know that she attended the SQL Symphony Concert
+-- 3 times in December 2017.
+--
+
+SELECT person.name
+FROM drivers_license
+  AS dl
+JOIN person
+  ON dl.id = person.license_id
+WHERE dl.height BETWEEN 64 AND 67
+  AND dl.hair_color = 'red'
+  AND dl.car_make = 'Tesla'
+  AND dl.car_model = 'Model S'
+  AND dl.gender = 'female'
+;
+
+--
+-- Red Korb
+-- Regina George
+-- Miranda Priestly
+--
+
+SELECT person.name, COUNT(person.name) AS visits
+FROM facebook_event_checkin
+  AS event
+JOIN person
+  ON event.person_id = person.id
+WHERE event.date BETWEEN 20171201 AND 20171231
+  AND event.event_name = 'SQL Symphony Concert'
+  AND person.name IN ('Red Korb', 'Regina George', 'Miranda Priestly')
+GROUP BY person.name
+;
+
+--
+-- Miranda Priestly 3
+--
+
+INSERT INTO solution
+VALUES (1, 'Miranda Priestly')
+;
+
+SELECT value
+FROM solution
+;
+
+--
+-- Congrats, you found the brains behind the murder! Everyone in SQL City hails
+-- you as the greatest SQL detective of all time. Time to break out the
+-- champagne!
+--