Add queries sh

Author: carreraprogrammer

queries.sh

@@ -0,0 +1,41 @@
+#! /bin/bash
+
+PSQL="psql --username=freecodecamp --dbname=worldcup --no-align --tuples-only -c"
+
+# Do not change code above this line. Use the PSQL variable above to query your database.
+
+echo -e "\nTotal number of goals in all games from winning teams:"
+echo "$($PSQL "SELECT SUM(winner_goals) FROM games")"
+
+echo -e "\nTotal number of goals in all games from both teams combined:"
+echo "$($PSQL "SELECT SUM(winner_goals + opponent_goals) FROM games")"
+
+echo -e "\nAverage number of goals in all games from the winning teams:"
+echo "$($PSQL "SELECT AVG(winner_goals) FROM games")"
+
+echo -e "\nAverage number of goals in all games from the winning teams rounded to two decimal places:"
+echo "$($PSQL "SELECT ROUND(AVG(winner_goals), 2) FROM games")"
+
+echo -e "\nAverage number of goals in all games from both teams:"
+echo "$($PSQL "SELECT AVG(winner_goals + opponent_goals) FROM games")"
+
+echo -e "\nMost goals scored in a single game by one team:"
+echo "$($PSQL "SELECT MAX(winner_goals) FROM games")"
+
+echo -e "\nNumber of games where the winning team scored more than two goals:"
+echo "$($PSQL "SELECT COUNT(*) FROM games WHERE winner_goals > 2")"
+
+echo -e "\nWinner of the 2018 tournament team name:"
+echo "$($PSQL "SELECT name FROM teams WHERE team_id = (SELECT winner_id FROM games WHERE round = 'Final' AND year = 2018)")"
+
+echo -e "\nList of teams who played in the 2014 'Eighth-Final' round:"
+echo "$($PSQL "SELECT DISTINCT teams.name FROM teams JOIN games ON teams.team_id IN (games.winner_id, games.opponent_id) WHERE games.year = 2014 AND games.round = 'Eighth-Final'")"
+
+echo -e "\nList of unique winning team names in the whole data set:"
+echo "$($PSQL "SELECT DISTINCT teams.name FROM teams JOIN games ON teams.team_id = games.winner_id ORDER BY name ASC")"
+
+echo -e "\nYear and team name of all the champions:"
+echo "$($PSQL "SELECT games.year, teams.name FROM teams JOIN games ON teams.team_id = games.winner_id WHERE games.round = 'Final' ORDER BY year ASC")"
+
+echo -e "\nList of teams that start with 'Co':"
+echo "$($PSQL "SELECT name FROM teams WHERE name LIKE 'Co%'")"