From 93f5648f0a332dad20e7b4734e7dec90c4ab386c Mon Sep 17 00:00:00 2001
From: Jeremy <jeremysabina@gmail.com>
Date: Fri, 30 Jul 2021 20:14:31 -0400
Subject: [PATCH] John be killin it with these SQL's

---
 .DS_Store             | Bin 0 -> 6148 bytes
 answers/exercise1.sql |   4 ++++
 answers/exercise2.sql |   4 ++++
 answers/exercise3.sql |   4 ++++
 answers/exercise4.sql |   3 +++
 answers/exercise5.sql |   4 ++++
 answers/exercise6.sql |   5 +++++
 7 files changed, 24 insertions(+)
 create mode 100644 .DS_Store

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..2ae462e1b7bba13d01605ca8319dd150413134e1
GIT binary patch
literal 6148
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z<IL_>)au29NST4zZ+3om*)L&#06;W{9S5Ka01}n3P{!sPp*ZQ36s(6(=rOu5fF#J0
zo1j0H&5r-b0DZd>_z*z?8GQJDae$GR;HDoYX}$g`3UkHzg_4vNSy`%Fc)d9DQa>Fg
zO@DAky(2&E1=c=}<Nmwt2Pa`SyR5G4$5HBsQFow=!%i1d&QHUr6KBnM7<Cdoj%NZ=
zmSy>}x;`2?jh#kKISprbTvMan&3a8WwzkLPvRvJ8_72<EclV=*@#B+WSKyDRW!d5c
zp3(TS&|7a1_2cLYBa^C0HX}2@3@`&T&4AtX<l;=Pk{8DeFay6~fc6K4O6Xe54eG4}
z8@fJHyhuobHoYYXl||QLZV)3V!jvMKQemGM!jz+5**w=`ZqSs2&@<yWc4lE;C_>MU
zex=hvxCXgp2AF}*49uBsmCpZzpWpwVi@3)OFatBifGD=SRuh+G&(^8M(OIid+o&Xz
omm7R9K|>$Km`g|T8mbobD>4vWi@8DcpzuXN)4&Zg@TUyC0oG(wfB*mh

literal 0
HcmV?d00001

diff --git a/answers/exercise1.sql b/answers/exercise1.sql
index e69de29..c8a759c 100644
--- a/answers/exercise1.sql
+++ b/answers/exercise1.sql
@@ -0,0 +1,4 @@
+SELECT *
+FROM Enrolments
+LEFT JOIN Learners
+ON Enrolments.ID=Learners.ID;
\ No newline at end of file
diff --git a/answers/exercise2.sql b/answers/exercise2.sql
index e69de29..7f4c89f 100644
--- a/answers/exercise2.sql
+++ b/answers/exercise2.sql
@@ -0,0 +1,4 @@
+SELECT *
+FROM Enrolments
+INNER JOIN Learners
+ON Enrolments.ID=Learners.ID;
\ No newline at end of file
diff --git a/answers/exercise3.sql b/answers/exercise3.sql
index e69de29..51c089c 100644
--- a/answers/exercise3.sql
+++ b/answers/exercise3.sql
@@ -0,0 +1,4 @@
+SELECT *
+FROM Enrolments
+RIGHT JOIN Learners
+ON Enrolments.ID=Learners.ID;
\ No newline at end of file
diff --git a/answers/exercise4.sql b/answers/exercise4.sql
index e69de29..9261654 100644
--- a/answers/exercise4.sql
+++ b/answers/exercise4.sql
@@ -0,0 +1,3 @@
+SELECT COUNT(*), Country
+FROM Learners
+GROUP BY Country;
\ No newline at end of file
diff --git a/answers/exercise5.sql b/answers/exercise5.sql
index e69de29..34de031 100644
--- a/answers/exercise5.sql
+++ b/answers/exercise5.sql
@@ -0,0 +1,4 @@
+SELECT COUNT(*), Country
+FROM Learners
+GROUP BY Country
+ORDER BY COUNT(*) DESC;
\ No newline at end of file
diff --git a/answers/exercise6.sql b/answers/exercise6.sql
index e69de29..f57136d 100644
--- a/answers/exercise6.sql
+++ b/answers/exercise6.sql
@@ -0,0 +1,5 @@
+SELECT COUNT(*), Country
+FROM Learners
+GROUP BY Country
+HAVING COUNT(*) > 10
+ORDER BY COUNT(*);
\ No newline at end of file