From 45ec0f4383ac61b4ee196660ec525daf10172448 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E2=80=9CBitaET?= <“bita.et@gmail.com”>
Date: Wed, 21 Sep 2022 23:07:26 -0700
Subject: [PATCH 1/4] assignment 2 added

---
 Assignment2/assignment2.sql | 40 +++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Assignment2/assignment2.sql

diff --git a/Assignment2/assignment2.sql b/Assignment2/assignment2.sql
new file mode 100644
index 0000000..246a52c
--- /dev/null
+++ b/Assignment2/assignment2.sql
@@ -0,0 +1,40 @@
+create index idx_batter_counts on baseball.batter_counts(game_id);
+create index idx_game on baseball.game(game_id);
+
+
+Question 1
+
+annual
+with t1 as (select btc.team_id, sum(btc.hit)/sum(btc.atBat) as batting_average, extract(YEAR from gm.local_date) as year
+from baseball.batter_counts btc
+left join baseball.game gm
+on btc.game_id = gm.game_id
+group by (btc.team_id))
+update table baseball.team_results tr inner join t1
+on tr.game_id = t1.game_id
+set tr.annual_batting_average = t1.batting_average
+limit 10;
+
+total
+select btc.team_id, sum(btc.hit)/sum(btc.atBat) as batting_average
+from baseball.batter_counts btc
+left join baseball.game gm
+on btc.game_id = gm.game_id
+group by (btc.team_id)
+limit 10;
+
+
+Question 2
+
+with t1 as (select btc.team_id, max(gm.local_date) as max from baseball.batter_counts btc
+left join baseball.game gm
+on btc.game_id = gm.game_id),
+t2 as (select btc.team_id, sum(btc.hit)/sum(btc.atBat) as batting_average, gm.local_date
+from baseball.batter_counts btc
+left join baseball.game gm
+on btc.game_id = gm.game_id
+group by btc.team_id, btc.game_id)
+select t1.team_id , avg(t2.batting_average)  from t1 
+right join t2 on t1.team_id = t2.team_id
+where t2.local_date > date_add(t1.max, INTERVAL -100 DAY)
+group by t1.team_id
\ No newline at end of file

From 09574f020b23a1b55b234ef2e3c968228fd8896f Mon Sep 17 00:00:00 2001
From: BitaEt <112501073+BitaEt@users.noreply.github.com>
Date: Fri, 23 Sep 2022 01:23:51 -0700
Subject: [PATCH 2/4] Update assignment2.sql

---
 Assignment2/assignment2.sql | 36 +++++++++++++++++-------------------
 1 file changed, 17 insertions(+), 19 deletions(-)

diff --git a/Assignment2/assignment2.sql b/Assignment2/assignment2.sql
index 246a52c..0a1bf6a 100644
--- a/Assignment2/assignment2.sql
+++ b/Assignment2/assignment2.sql
@@ -1,40 +1,38 @@
 create index idx_batter_counts on baseball.batter_counts(game_id);
 create index idx_game on baseball.game(game_id);
 
+create table baseball.results (batter numeric, annual_batting_average double PRECISION, historic_batting_average double precision, rolling_batting_average double PRECISION);
 
 Question 1
 
 annual
-with t1 as (select btc.team_id, sum(btc.hit)/sum(btc.atBat) as batting_average, extract(YEAR from gm.local_date) as year
+nsert into baseball.results (batter, annual_batting_average) select batter, batting_average from(
+select btc.batter, sum(btc.hit)/sum(btc.atBat) as batting_average, extract(YEAR from gm.local_date) as year
 from baseball.batter_counts btc
 left join baseball.game gm
 on btc.game_id = gm.game_id
-group by (btc.team_id))
-update table baseball.team_results tr inner join t1
-on tr.game_id = t1.game_id
-set tr.annual_batting_average = t1.batting_average
-limit 10;
+group by (btc.batter), year
+order by (btc.batter), year) as aa
 
 total
-select btc.team_id, sum(btc.hit)/sum(btc.atBat) as batting_average
-from baseball.batter_counts btc
-left join baseball.game gm
-on btc.game_id = gm.game_id
-group by (btc.team_id)
-limit 10;
+insert into baseball.results (historic_batting_average) select batter from (select batter, sum(hit)/sum(atBat) as batting_average
+from baseball.batter_counts
+group by batter)
+where batter = batter;
 
 
 Question 2
 
-with t1 as (select btc.team_id, max(gm.local_date) as max from baseball.batter_counts btc
+with t1 as (select btc.batter, max(gm.local_date) as max from baseball.batter_counts btc
 left join baseball.game gm
-on btc.game_id = gm.game_id),
-t2 as (select btc.team_id, sum(btc.hit)/sum(btc.atBat) as batting_average, gm.local_date
+on btc.game_id = gm.game_id
+group by btc.batter),
+t2 as (select btc.batter, sum(btc.hit)/sum(btc.atBat) as batting_average, gm.local_date
 from baseball.batter_counts btc
 left join baseball.game gm
 on btc.game_id = gm.game_id
-group by btc.team_id, btc.game_id)
-select t1.team_id , avg(t2.batting_average)  from t1 
-right join t2 on t1.team_id = t2.team_id
+group by btc.batter, btc.game_id)
+select t2.batter , avg(t2.batting_average)  from t2
+right join t1 on t2.batter = t1.batter
 where t2.local_date > date_add(t1.max, INTERVAL -100 DAY)
-group by t1.team_id
\ No newline at end of file
+group by t1.batter

From 2b27d796dd2ceb3845d578fa2f8a8e36fc3387ef Mon Sep 17 00:00:00 2001
From: BitaEt <112501073+BitaEt@users.noreply.github.com>
Date: Fri, 23 Sep 2022 17:39:30 -0700
Subject: [PATCH 3/4] Update assignment2.sql

---
 Assignment2/assignment2.sql | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/Assignment2/assignment2.sql b/Assignment2/assignment2.sql
index 0a1bf6a..943196a 100644
--- a/Assignment2/assignment2.sql
+++ b/Assignment2/assignment2.sql
@@ -1,29 +1,32 @@
 create index idx_batter_counts on baseball.batter_counts(game_id);
 create index idx_game on baseball.game(game_id);
 
-create table baseball.results (batter numeric, annual_batting_average double PRECISION, historic_batting_average double precision, rolling_batting_average double PRECISION);
+--note: commented out after code buddy reviewed this
+---create table baseball.results (batter numeric, annual_batting_average double PRECISION, historic_batting_average double precision, rolling_batting_average double PRECISION);
 
 Question 1
 
 annual
-nsert into baseball.results (batter, annual_batting_average) select batter, batting_average from(
+create table baseball.annual_batting_average (select batter, batting_average from(
 select btc.batter, sum(btc.hit)/sum(btc.atBat) as batting_average, extract(YEAR from gm.local_date) as year
 from baseball.batter_counts btc
 left join baseball.game gm
 on btc.game_id = gm.game_id
 group by (btc.batter), year
-order by (btc.batter), year) as aa
+having sum(btc.atBat) > 0
+order by (btc.batter), year) as aa)
+
 
 total
-insert into baseball.results (historic_batting_average) select batter from (select batter, sum(hit)/sum(atBat) as batting_average
+create table baseball.total_batting_average (select batter, sum(hit)/sum(atBat) as batting_average
 from baseball.batter_counts
-group by batter)
-where batter = batter;
+group by batter
+having sum(atBat) >0);
 
 
 Question 2
 
-with t1 as (select btc.batter, max(gm.local_date) as max from baseball.batter_counts btc
+create table baseball.rolling_batting_average (with t1 as (select btc.batter, max(gm.local_date) as max from baseball.batter_counts btc
 left join baseball.game gm
 on btc.game_id = gm.game_id
 group by btc.batter),
@@ -31,8 +34,9 @@ t2 as (select btc.batter, sum(btc.hit)/sum(btc.atBat) as batting_average, gm.loc
 from baseball.batter_counts btc
 left join baseball.game gm
 on btc.game_id = gm.game_id
-group by btc.batter, btc.game_id)
+group by btc.batter, btc.game_id
+having sum(btc.atBat)>0)
 select t2.batter , avg(t2.batting_average)  from t2
 right join t1 on t2.batter = t1.batter
 where t2.local_date > date_add(t1.max, INTERVAL -100 DAY)
-group by t1.batter
+group by t1.batter);

From 6a1473c52c3505b0b0e0cdf4feff6496f6f61446 Mon Sep 17 00:00:00 2001
From: BitaEt <112501073+BitaEt@users.noreply.github.com>
Date: Sat, 24 Sep 2022 03:17:10 -0700
Subject: [PATCH 4/4] Update assignment2.sql

---
 Assignment2/assignment2.sql | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Assignment2/assignment2.sql b/Assignment2/assignment2.sql
index 943196a..90d859b 100644
--- a/Assignment2/assignment2.sql
+++ b/Assignment2/assignment2.sql
@@ -40,3 +40,10 @@ select t2.batter , avg(t2.batting_average)  from t2
 right join t1 on t2.batter = t1.batter
 where t2.local_date > date_add(t1.max, INTERVAL -100 DAY)
 group by t1.batter);
+
+--Explanation about temporary tables:
+--I just created those since I thought we have to store the answers in a new table, but if not those tables are not needed and can simply be removed from the query
+
+drop table baseball.annual_batting_average;
+drop table baseball.total_batting_average;
+drop table baseball.rolling_batting_average;