From bb4918e180ebeda76c41981f16a47f9ad9d2a8a1 Mon Sep 17 00:00:00 2001
From: Berna Ozer <brna.ozer@gmail.com>
Date: Wed, 22 Nov 2023 14:41:07 +0100
Subject: [PATCH] Berna Ozer

---
 .DS_Store               | Bin 0 -> 6148 bytes
 your-code/solutions.sql |  39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 .DS_Store
 create mode 100644 your-code/solutions.sql

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..585f2e55d09f2fd16dfede08624ce10c7610cd60
GIT binary patch
literal 6148
zcmeHK!AiqG5S?wSX(&Pu3OxqAR;(rH!Apqs2aM=Jr6wlSV45vSYLQaNS%1hc@q3)v
z-HNsKDr$FN_RY@DB+SdQn*jjkj>7|hCIHk?2`eTJD}>fbm!zURHAE(!5kVeI@==iR
zU@2NVej@|)?KUBXA^0$W#qakTjFLDnI-NIGsn#|&4Z}1V#*KH+Ctl$f<J|SLE1I2i
zo&<B-4=&<p(r<2`@U-ybG|EIm97Y&&eHo`ApSXOShPlY~<br9|&3>~ropx=zZFRf$
ztZhw?$hHsd+03l(?Cu|*^&gU9%AX~X4ELOnEroM<L1Uq&M=whgo(|AYIVL;-hcRTZ
z2X|<N5PjOUf4S-vm3^sw&XGpVfM#I58BphEy|Laj=;}2Cnt>Gz(D`7Y5;_V?iQ?$M
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zKHn1Iz#NHs)C_0_78$6@X_M~%)9?HL#Uwq`3}^=a6$7l+^Lj3pr0&+G;^?lmP;XI5
pD6W+Fk%ES}iZPb1;ufk9^jl;gItojP=t0px0)hrTXa;_ifp-J^i{bzP

literal 0
HcmV?d00001

diff --git a/your-code/solutions.sql b/your-code/solutions.sql
new file mode 100644
index 0000000..73017dc
--- /dev/null
+++ b/your-code/solutions.sql
@@ -0,0 +1,39 @@
+USE publications;
+
+-- Challenge 1 - Who Have Published What At Where?
+
+SELECT authors.au_id AS 'Author ID', authors.au_lname AS 'LAST NAME', authors.au_fname AS 'FIRST NAME', titles.title AS 'TITLE', publishers.pub_name AS 'PUBLISHER'
+FROM authors
+INNER JOIN titleauthor ON authors.au_id = titleauthor.au_id
+INNER JOIN titles USING (title_id)
+INNER JOIN publishers USING (pub_id);
+
+-- Challenge 2 - Who Have Published How Many At Where?
+
+SELECT authors.au_id AS 'Author ID', authors.au_lname AS 'LAST NAME', authors.au_fname AS 'FIRST NAME', COUNT(titles.title) AS 'TITLE COUNT', publishers.pub_name AS 'PUBLISHER'
+FROM authors
+INNER JOIN titleauthor ON authors.au_id = titleauthor.au_id
+INNER JOIN titles USING (title_id)
+INNER JOIN publishers USING (pub_id)
+GROUP BY authors.au_id,publishers.pub_name;
+
+-- Challenge 3 - Best Selling Authors
+
+SELECT authors.au_id AS 'Author ID', authors.au_lname AS 'LAST NAME', authors.au_fname AS 'FIRST NAME', SUM(sales.qty) AS 'TOTAL'
+FROM authors
+INNER JOIN titleauthor ON authors.au_id = titleauthor.au_id
+INNER JOIN titles USING (title_id)
+INNER JOIN sales USING (title_id)
+GROUP BY authors.au_id
+ORDER BY TOTAL DESC
+LIMIT 3; 
+
+-- Challenge 4 - Best Selling Authors Ranking
+
+SELECT authors.au_id AS 'Author ID', authors.au_lname AS 'LAST NAME', authors.au_fname AS 'FIRST NAME', IFNULL(SUM(sales.qty), 0) AS 'TOTAL'
+FROM authors
+LEFT JOIN titleauthor ON authors.au_id = titleauthor.au_id
+LEFT JOIN titles USING (title_id)
+LEFT JOIN sales USING (title_id)
+GROUP BY authors.au_id
+ORDER BY TOTAL DESC;