From f271f4971aa3f2ea8718c6df353fadf7aa688cf0 Mon Sep 17 00:00:00 2001
From: emkael <emkael@tlen.pl>
Date: Wed, 29 Oct 2014 15:48:36 +0100
Subject:  * useful queries re-formatted

---
 doc/sql.txt | 43 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 37 insertions(+), 6 deletions(-)

(limited to 'doc')

diff --git a/doc/sql.txt b/doc/sql.txt
index 16373b3..3a67dd3 100644
--- a/doc/sql.txt
+++ b/doc/sql.txt
@@ -1,17 +1,48 @@
 Useful queries:
 
-SELECT * FROM `rankings` JOIN drivers ON rankings._driver = drivers.id WHERE ranking >= (SELECT MAX(r.ranking) FROM rankings r WHERE r.rank_date <= rankings.rank_date) ORDER BY rank_date ASC
-
  - selects top rating progression
 
-SELECT drivers.driver, rankings.ranking, rankings.rank_date FROM rankings INNER JOIN (SELECT MAX(ranking) ranking, _driver FROM rankings GROUP BY _driver) r ON r.ranking=rankings.ranking AND r._driver=rankings._driver JOIN drivers ON rankings._driver = drivers.id ORDER BY rankings.ranking DESC
+SELECT * FROM rankings
+JOIN drivers ON rankings._driver = drivers.id
+WHERE ranking >= (
+      SELECT MAX(r.ranking) FROM rankings r
+      WHERE r.rank_date <= rankings.rank_date
+) ORDER BY rank_date ASC
 
  - overall top peak ratings
- 
-SELECT drivers.driver, rankings.ranking, rankings.rank_date FROM rankings INNER JOIN (SELECT MAX(rank_date) rank_date, _driver FROM rankings GROUP BY _driver) r ON r.rank_date=rankings.rank_date AND r._driver=rankings._driver JOIN drivers ON rankings._driver = drivers.id ORDER BY rankings.ranking DESC
+
+SELECT drivers.driver,
+       rankings.ranking,
+       rankings.rank_date
+FROM rankings
+INNER JOIN (
+      SELECT MAX(ranking) ranking, _driver FROM rankings
+      GROUP BY _driver
+) r ON r.ranking=rankings.ranking AND r._driver=rankings._driver
+JOIN drivers ON rankings._driver = drivers.id
+ORDER BY rankings.ranking DESC
 
  - highest exit ratings
 
-SELECT MAX(ranking), AVG(ranking), YEAR(rank_date) FROM rankings GROUP BY YEAR(rank_date) ORDER BY YEAR(rank_date) ASC
+SELECT drivers.driver,
+       rankings.ranking,
+         rankings.rank_date
+FROM rankings
+INNER JOIN (
+      SELECT MAX(rank_date) rank_date, _driver FROM rankings GROUP BY _driver
+) r ON r.rank_date=rankings.rank_date AND r._driver=rankings._driver
+JOIN drivers ON rankings._driver = drivers.id
+WHERE rankings.rank_date < CONCAT(YEAR(CURDATE()),'-01-01')
+ORDER BY rankings.ranking DESC
 
  - year-by-year rating inflation
+
+SELECT YEAR(rank_date),
+       MAX(ranking),
+       MIN(ranking),
+       AVG(ranking),
+       AVG(ranking)+STDDEV(ranking),
+       AVG(ranking)-STDDEV(ranking)
+FROM rankings
+GROUP BY YEAR(rank_date)
+ORDER BY YEAR(rank_date) ASC
-- 
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