Dludora/DAIL-BIRD huggingface dataset:
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: List the university ID of the university that scored 100 in 2011. in 2011 refers to year = 2011; score = 100 */
SELECT 
SELECT university_id FROM university_ranking_year WHERE score = 100 AND year = 2011
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Provide the ranking system of the ranking criteria named Quality of Education Rank. criteria named Quality of Education Rank refers to criteria_name = 'Quality of Education Rank'; ranking system refers to system_name; */
SELECT 
SELECT T1.system_name FROM ranking_system AS T1 INNER JOIN ranking_criteria AS T2 ON T1.id = T2.ranking_system_id WHERE T2.criteria_name = 'Quality of Education Rank'
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: What is the student staff ratio of Harvard University in 2012? Harvard University refers to university_name = 'Harvard University'; in 2012 refers to year = 2012 */
SELECT 
SELECT T1.student_staff_ratio FROM university_year AS T1 INNER JOIN university AS T2 ON T1.university_id = T2.id WHERE T2.university_name = 'Harvard University' AND T1.year = 2012
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Give the location of the university ID 112. location refers to country_name */
SELECT 
SELECT T2.country_name FROM university AS T1 INNER JOIN country AS T2 ON T1.country_id = T2.id WHERE T1.id = 112
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Calculate the total number of students in universities located in Sweden. located in Sweden refers to country_name = 'Sweden'; number of students refers to num_students */
SELECT 
SELECT SUM(T2.num_students) FROM university AS T1 INNER JOIN university_year AS T2 ON T1.id = T2.university_id INNER JOIN country AS T3 ON T3.id = T1.country_id WHERE T3.country_name = 'Sweden'
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: What is the ranking criteria ID of Brown University in 2014? Brown University refers to university_name = 'Brown University'; in 2014 refers to year = 2014 */
SELECT 
SELECT T1.ranking_criteria_id FROM university_ranking_year AS T1 INNER JOIN university AS T2 ON T1.university_id = T2.id WHERE T2.university_name = 'Brown University' AND T1.year = 2014
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: List the name of universities located in Spain. name of universities refers to university_name; located in Spain refers to country_name = 'Spain'; */
SELECT 
SELECT T1.university_name FROM university AS T1 INNER JOIN country AS T2 ON T1.country_id = T2.id WHERE T2.country_name = 'Spain'
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: What is the criteria name of the university ID 32 in 2015? in 2015 refers to year = 2015 */
SELECT 
SELECT T1.criteria_name FROM ranking_criteria AS T1 INNER JOIN university_ranking_year AS T2 ON T1.id = T2.ranking_criteria_id WHERE T2.university_id = 32 AND T2.year = 2015
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Compute the average score of the university located in Brazil. average score refers to avg(score); located in Brazil refers to country_name = 'Brazil'; */
SELECT 
SELECT AVG(T2.score) FROM university AS T1 INNER JOIN university_ranking_year AS T2 ON T1.id = T2.university_id INNER JOIN country AS T3 ON T3.id = T1.country_id WHERE T3.country_name = 'Brazil'
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: In which country does the most populated university in 2014 located ? the most populated university refers to max(num_students); in 2014 refers to year = 2014 */
SELECT 
SELECT T2.country_id FROM university_year AS T1 INNER JOIN university AS T2 ON T1.university_id = T2.id WHERE T1.year = 2014 ORDER BY T1.num_students DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Give the score and number of international students in university ID 100 in 2015. number of international students refers to DIVIDE(MULTIPLY(num_students, pct_international_students), 100); in 2015 refers to year = 2015 */
SELECT 
SELECT CAST(T1.num_students * T1.pct_international_students AS REAL) / 100, T2.score FROM university_year AS T1 INNER JOIN university_ranking_year AS T2 ON T1.university_id = T2.university_id WHERE T2.year = 2015 AND T1.university_id = 100
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: What is the student population of the university that scored 98 in 2013? student population refers to num_students; in 2013 refers to year = 2013 */
SELECT 
SELECT SUM(T1.num_students) FROM university_year AS T1 INNER JOIN university_ranking_year AS T2 ON T1.university_id = T2.university_id WHERE T2.score = 98 AND T1.year = 2013
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: List the criteria names under the ranking system called Center for World University Ranking. ranking system called Center for World University Ranking refers to system_name = 'Center for World University Rankings'; */
SELECT 
SELECT T2.criteria_name FROM ranking_system AS T1 INNER JOIN ranking_criteria AS T2 ON T1.id = T2.ranking_system_id WHERE T1.system_name = 'Center for World University Rankings'
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Provide the country name of universities with the number of students greater than 98% of the average student population of all universities in 2013. number of students greater than 98% of the average student population of all universities refers to num_students >  MULTPLY(num_students, 0.98); in 2013 refers to year = 2013 */
SELECT 
SELECT DISTINCT T3.country_name FROM university AS T1 INNER JOIN university_year AS T2 ON T1.id = T2.university_id INNER JOIN country AS T3 ON T3.id = T1.country_id WHERE T2.year = 2013 AND T2.num_students * 100 > ( SELECT AVG(num_students) FROM university_year ) * 98
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Among universities that score below 80 in 2015, what is the percentage of international students? score below 80 refers to score < 80; in 2015 refers to year 2015; percentage of international students refers to DIVIDE(SUM(DIVIDE(MULTIPLY(num_students, pct_international_students), 100)), SUM(num_students)) */
SELECT 
SELECT SUM(CAST(T1.num_students * T1.pct_international_students AS REAL) / 100) / COUNT(*) * 100 FROM university_year AS T1 INNER JOIN university_ranking_year AS T2 ON T1.university_id = T2.university_id WHERE T2.score < 80 AND T1.year = 2015
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: How many students attended universities were there in 2011? in 2011 refers to year = 2011; */
SELECT 
SELECT SUM(num_students) FROM university_year WHERE year = 2011
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Among all universities, how many female students were there in 2011? in 2011 refers to year = 2011; female students refers to SUM(DIVIDE(MULTIPLY(num_students, pct_female_students), 100)) */
SELECT 
SELECT SUM(CAST(num_students * pct_female_students AS REAL) / 100) FROM university_year WHERE year = 2011
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: What is the student staff ratio at the university with the greatest student staff ratio of all time? greatest student staff ratio of all time refers to max(student_staff_ratio) */
SELECT 
SELECT MAX(student_staff_ratio) FROM university_year ORDER BY student_staff_ratio DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: What is the university ID with the most students in 2011? most students refers to MAX(num_students), in 2011 refers to year = 2011 */
SELECT 
SELECT university_id FROM university_year WHERE year = 2011 ORDER BY num_students DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: How many institutions with over 50,000 students in 2011 had a percentage of oversea students of more than 10%? institutions with over 50,000 students refers to num_students > 50000; in 2011 refers to year = 2011; percentage of oversea students of more than 10% refers to pct_international_students > 10; */
SELECT 
SELECT COUNT(*) FROM university_year WHERE year = 2011 AND num_students > 50000 AND pct_international_students > 10
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Provide the ID of the university with the highest percentage of female students in 2012. in 2012 refers to year = 2012; highest percentage of female students  refers to MAX(pct_female_students); ID of the university refers to university_id */
SELECT 
SELECT university_id FROM university_year WHERE year = 2012 ORDER BY pct_female_students DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Which university had the highest reputation in 2012? had the highest reputation refers to MAX(score), in 2012 refers to year = 2012; which university refers to university_name; */
SELECT 
SELECT T2.university_name FROM university_ranking_year AS T1 INNER JOIN university AS T2 ON T1.university_id = T2.id WHERE T1.year = 2012 ORDER BY T1.score DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Name the university that had the most students in 2011. in 2011 refers to year = 2011; had the most students refers to MAX(num_students); name of university refers to university_name; */
SELECT 
SELECT T2.university_name FROM university_year AS T1 INNER JOIN university AS T2 ON T1.university_id = T2.id WHERE T1.year = 2011 ORDER BY T1.num_students DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE country
(
    id           INTEGER not null
            primary key,
    country_name TEXT default NULL
)

CREATE TABLE ranking_system
(
    id          INTEGER not null
            primary key,
    system_name TEXT default NULL
)

CREATE TABLE ranking_criteria
(
    id                INTEGER not null
            primary key,
    ranking_system_id INTEGER          default NULL,
    criteria_name     TEXT default NULL,
    foreign key (ranking_system_id) references ranking_system(id)
)

CREATE TABLE university
(
    id              INTEGER not null
            primary key,
    country_id      INTEGER          default NULL,
    university_name TEXT default NULL,
    foreign key (country_id) references country(id)
)

CREATE TABLE university_ranking_year
(
    university_id       INTEGER default NULL,
    ranking_criteria_id INTEGER default NULL,
    year                INTEGER default NULL,
    score               INTEGER default NULL,
    foreign key (ranking_criteria_id) references ranking_criteria(id),
    foreign key (university_id) references university(id)
)

CREATE TABLE university_year
(
    university_id              INTEGER           default NULL,
    year                       INTEGER           default NULL,
    num_students               INTEGER           default NULL,
    student_staff_ratio        REAL default NULL,
    pct_international_students INTEGER           default NULL,
    pct_female_students        INTEGER           default NULL,
    foreign key (university_id) references university(id)
)

/* Answer the following: Indicate the university's name with the highest ranking score in Teaching. university's name refers to university_name; highest ranking score refers to MAX(score); in Teaching refers to criteria_name = 'Teaching' */
SELECT 
SELECT T1.university_name FROM university AS T1 INNER JOIN university_ranking_year AS T2 ON T1.id = T2.university_id INNER JOIN ranking_criteria AS T3 ON T3.id = T2.ranking_criteria_id WHERE T3.criteria_name = 'Teaching' ORDER BY T2.score DESC LIMIT 1