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queries.sh
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queries.sh
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#! /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(GREATEST(winner_goals,opponent_goals)) FROM games")"
echo -e "\nNumber of games where the winning team scored more than two goals:"
echo "$($PSQL "SELECT COUNT(game_id) FROM games WHERE winner_goals > 2")"
echo -e "\nWinner of the 2018 tournament team name:"
echo "$($PSQL "SELECT name FROM teams FULL JOIN games ON winner_id=team_id WHERE round='Final' and year='2018'")"
echo -e "\nList of teams who played in the 2014 'Eighth-Final' round:"
echo "$($PSQL "SELECT name FROM teams FULL JOIN games ON winner_id=team_id OR team_id=opponent_id WHERE round='Eighth-Final' and year='2014' ORDER BY name")"
echo -e "\nList of unique winning team names in the whole data set:"
echo "$($PSQL "SELECT DISTINCT name FROM teams inner JOIN games ON winner_id=team_id ORDER BY name")"
echo -e "\nYear and team name of all the champions:"
echo "$($PSQL "SELECT year,name FROM games FULL JOIN teams ON winner_id=team_id WHERE round='Final'")"
echo -e "\nList of teams that start with 'Co':"
echo "$($PSQL "SELECT name FROM teams WHERE name LIKE 'Co%'")"