/* Given the following database schema: */
CREATE TABLE Batting_Style
(
    Batting_Id   INTEGER
            primary key,
    Batting_hand TEXT
)

CREATE TABLE Bowling_Style
(
    Bowling_Id    INTEGER
            primary key,
    Bowling_skill TEXT
)

CREATE TABLE City
(
    City_Id    INTEGER
            primary key,
    City_Name  TEXT,
    Country_id INTEGER
)

CREATE TABLE Country
(
    Country_Id   INTEGER
            primary key,
    Country_Name TEXT,
    foreign key (Country_Id) references Country(Country_Id)
)

CREATE TABLE Extra_Type
(
    Extra_Id   INTEGER
            primary key,
    Extra_Name TEXT
)

CREATE TABLE Extra_Runs
(
    Match_Id      INTEGER,
    Over_Id       INTEGER,
    Ball_Id       INTEGER,
    Extra_Type_Id INTEGER,
    Extra_Runs    INTEGER,
    Innings_No    INTEGER,
    primary key (Match_Id, Over_Id, Ball_Id, Innings_No),
    foreign key (Extra_Type_Id) references Extra_Type(Extra_Id)
)

CREATE TABLE Out_Type
(
    Out_Id   INTEGER
            primary key,
    Out_Name TEXT
)

CREATE TABLE Outcome
(
    Outcome_Id   INTEGER
            primary key,
    Outcome_Type TEXT
)

CREATE TABLE Player
(
    Player_Id     INTEGER
            primary key,
    Player_Name   TEXT,
    DOB           DATE,
    Batting_hand  INTEGER,
    Bowling_skill INTEGER,
    Country_Name  INTEGER,
    foreign key (Batting_hand) references Batting_Style(Batting_Id),
    foreign key (Bowling_skill) references Bowling_Style(Bowling_Id),
    foreign key (Country_Name) references Country(Country_Id)
)

CREATE TABLE Rolee
(
    Role_Id   INTEGER
            primary key,
    Role_Desc TEXT
)

CREATE TABLE Season
(
    Season_Id         INTEGER
            primary key,
    Man_of_the_Series INTEGER,
    Orange_Cap        INTEGER,
    Purple_Cap        INTEGER,
    Season_Year       INTEGER
)

CREATE TABLE Team
(
    Team_Id   INTEGER
            primary key,
    Team_Name TEXT
)

CREATE TABLE Toss_Decision
(
    Toss_Id   INTEGER
            primary key,
    Toss_Name TEXT
)

CREATE TABLE Umpire
(
    Umpire_Id      INTEGER
            primary key,
    Umpire_Name    TEXT,
    Umpire_Country INTEGER,
    foreign key (Umpire_Country) references Country(Country_Id)
)

CREATE TABLE Venue
(
    Venue_Id   INTEGER
            primary key,
    Venue_Name TEXT,
    City_Id    INTEGER,
    foreign key (City_Id) references City(City_Id)
)

CREATE TABLE Win_By
(
    Win_Id   INTEGER
            primary key,
    Win_Type TEXT
)

CREATE TABLE Match
(
    Match_Id         INTEGER
            primary key,
    Team_1           INTEGER,
    Team_2           INTEGER,
    Match_Date       DATE,
    Season_Id        INTEGER,
    Venue_Id         INTEGER,
    Toss_Winner      INTEGER,
    Toss_Decide      INTEGER,
    Win_Type         INTEGER,
    Win_Margin       INTEGER,
    Outcome_type     INTEGER,
    Match_Winner     INTEGER,
    Man_of_the_Match INTEGER,
    foreign key (Team_1) references Team(Team_Id),
    foreign key (Team_2) references Team(Team_Id),
    foreign key (Season_Id) references Season(Season_Id),
    foreign key (Venue_Id) references Venue(Venue_Id),
    foreign key (Toss_Winner) references Team(Team_Id),
    foreign key (Toss_Decide) references Toss_Decision(Toss_Id),
    foreign key (Win_Type) references Win_By(Win_Id),
    foreign key (Outcome_type) references Out_Type(Out_Id),
    foreign key (Match_Winner) references Team(Team_Id),
    foreign key (Man_of_the_Match) references Player(Player_Id)
)

CREATE TABLE Ball_by_Ball
(
    Match_Id                 INTEGER,
    Over_Id                  INTEGER,
    Ball_Id                  INTEGER,
    Innings_No               INTEGER,
    Team_Batting             INTEGER,
    Team_Bowling             INTEGER,
    Striker_Batting_Position INTEGER,
    Striker                  INTEGER,
    Non_Striker              INTEGER,
    Bowler                   INTEGER,
    primary key (Match_Id, Over_Id, Ball_Id, Innings_No),
    foreign key (Match_Id) references Match(Match_Id)
)

CREATE TABLE Batsman_Scored
(
    Match_Id    INTEGER,
    Over_Id     INTEGER,
    Ball_Id     INTEGER,
    Runs_Scored INTEGER,
    Innings_No  INTEGER,
    primary key (Match_Id, Over_Id, Ball_Id, Innings_No),
    foreign key (Match_Id) references Match(Match_Id)
)

CREATE TABLE Player_Match
(
    Match_Id  INTEGER,
    Player_Id INTEGER,
    Role_Id   INTEGER,
    Team_Id   INTEGER,
    primary key (Match_Id, Player_Id, Role_Id),
    foreign key (Match_Id) references Match(Match_Id),
    foreign key (Player_Id) references Player(Player_Id),
    foreign key (Team_Id) references Team(Team_Id),
    foreign key (Role_Id) references Rolee(Role_Id)
)

CREATE TABLE Wicket_Taken
(
    Match_Id   INTEGER,
    Over_Id    INTEGER,
    Ball_Id    INTEGER,
    Player_Out INTEGER,
    Kind_Out   INTEGER,
    Fielders   INTEGER,
    Innings_No INTEGER,
    primary key (Match_Id, Over_Id, Ball_Id, Innings_No),
    foreign key (Match_Id) references Match(Match_Id),
    foreign key (Player_Out) references Player(Player_Id),
    foreign key (Kind_Out) references Out_Type(Out_Id),
    foreign key (Fielders) references Player(Player_Id)
)

/* Answer the following: Among all the players born after the year 1985, what is the percentage of the players who use the right hand as their batting hand? born after the year 1985 refers to SUBSTR(DOB, 1, 4) > 1985; right hand as batting hand refers to Batting_Hand = 'Right-hand bat'; percentage = divide(count(Player_Id where Batting_Hand = 'Right-hand bat'), count(Player_Id)) * 100% where SUBSTR(DOB, 1, 4) > 1985 */
SELECT 
SELECT CAST(SUM(CASE WHEN T2.Batting_Hand = 'Right-hand bat' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(T1.Player_Id) FROM Player AS T1 INNER JOIN Batting_Style AS T2 ON T1.Batting_hand = T2.Batting_Id WHERE SUBSTR(T1.DOB, 1, 4) > 1985