lianghsun/bird-text2sql-bench huggingface dataset:
### Database Schema
CREATE TABLE langs(lid    INTEGER PRIMARY KEY AUTOINCREMENT,
                            lang   TEXT UNIQUE,
                            locale TEXT UNIQUE,
                            pages  INTEGER DEFAULT 0,  -- total pages in this language
                            words  INTEGER DEFAULT 0)

CREATE TABLE sqlite_sequence(name,seq)

CREATE TABLE pages(pid INTEGER PRIMARY KEY AUTOINCREMENT,
                            lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                            page INTEGER DEFAULT NULL, -- wikipedia page id
                            revision INTEGER DEFAULT NULL, -- wikipedia revision page id
                            title TEXT,
                            words INTEGER DEFAULT 0, -- number of different words in this page
                            UNIQUE(lid,page,title))

CREATE TABLE words(wid INTEGER PRIMARY KEY AUTOINCREMENT,
                            word        TEXT UNIQUE,
                            occurrences INTEGER DEFAULT 0)

CREATE TABLE langs_words(lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER, -- repetitions of this word in this language
                                        PRIMARY KEY(lid,wid))
                                        WITHOUT ROWID

CREATE TABLE pages_words(pid INTEGER REFERENCES pages(pid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER DEFAULT 0, -- times this word appears into this page
                                        PRIMARY KEY(pid,wid))
                                        WITHOUT ROWID

CREATE TABLE biwords(lid    INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w1st   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w2nd   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                occurrences INTEGER DEFAULT 0, -- times this pair appears in this language/page
                                PRIMARY KEY(lid,w1st,w2nd))
                                WITHOUT ROWID

### Question
List down the words with word id from 1 to 10 and write down a paired word for each of them.

### Hint
word id from 1 to 10 refers to wid BETWEEN 1 AND 10

### SQL
SELECT T1.word AS W1, T3.word AS W2 FROM words AS T1 LEFT JOIN biwords AS T2 ON T1.wid = T2.w1st LEFT JOIN words AS T3 ON T3.wid = T2.w2nd WHERE T1.wid <= 10 GROUP BY T1.wid
### Database Schema
CREATE TABLE langs(lid    INTEGER PRIMARY KEY AUTOINCREMENT,
                            lang   TEXT UNIQUE,
                            locale TEXT UNIQUE,
                            pages  INTEGER DEFAULT 0,  -- total pages in this language
                            words  INTEGER DEFAULT 0)

CREATE TABLE sqlite_sequence(name,seq)

CREATE TABLE pages(pid INTEGER PRIMARY KEY AUTOINCREMENT,
                            lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                            page INTEGER DEFAULT NULL, -- wikipedia page id
                            revision INTEGER DEFAULT NULL, -- wikipedia revision page id
                            title TEXT,
                            words INTEGER DEFAULT 0, -- number of different words in this page
                            UNIQUE(lid,page,title))

CREATE TABLE words(wid INTEGER PRIMARY KEY AUTOINCREMENT,
                            word        TEXT UNIQUE,
                            occurrences INTEGER DEFAULT 0)

CREATE TABLE langs_words(lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER, -- repetitions of this word in this language
                                        PRIMARY KEY(lid,wid))
                                        WITHOUT ROWID

CREATE TABLE pages_words(pid INTEGER REFERENCES pages(pid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER DEFAULT 0, -- times this word appears into this page
                                        PRIMARY KEY(pid,wid))
                                        WITHOUT ROWID

CREATE TABLE biwords(lid    INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w1st   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w2nd   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                occurrences INTEGER DEFAULT 0, -- times this pair appears in this language/page
                                PRIMARY KEY(lid,w1st,w2nd))
                                WITHOUT ROWID

### Question
For corpus title "Atomium", pick 3 words appear in the title and calculate the total occurence of these words.

### Hint
total occurrences refers to sum(occurrences)

### SQL
SELECT T1.word, T1.occurrences FROM words AS T1 INNER JOIN pages_words AS T2 ON T1.wid = T2.wid WHERE T2.pid = ( SELECT pid FROM pages WHERE title = 'Atomium' ) LIMIT 3
### Database Schema
CREATE TABLE langs(lid    INTEGER PRIMARY KEY AUTOINCREMENT,
                            lang   TEXT UNIQUE,
                            locale TEXT UNIQUE,
                            pages  INTEGER DEFAULT 0,  -- total pages in this language
                            words  INTEGER DEFAULT 0)

CREATE TABLE sqlite_sequence(name,seq)

CREATE TABLE pages(pid INTEGER PRIMARY KEY AUTOINCREMENT,
                            lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                            page INTEGER DEFAULT NULL, -- wikipedia page id
                            revision INTEGER DEFAULT NULL, -- wikipedia revision page id
                            title TEXT,
                            words INTEGER DEFAULT 0, -- number of different words in this page
                            UNIQUE(lid,page,title))

CREATE TABLE words(wid INTEGER PRIMARY KEY AUTOINCREMENT,
                            word        TEXT UNIQUE,
                            occurrences INTEGER DEFAULT 0)

CREATE TABLE langs_words(lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER, -- repetitions of this word in this language
                                        PRIMARY KEY(lid,wid))
                                        WITHOUT ROWID

CREATE TABLE pages_words(pid INTEGER REFERENCES pages(pid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER DEFAULT 0, -- times this word appears into this page
                                        PRIMARY KEY(pid,wid))
                                        WITHOUT ROWID

CREATE TABLE biwords(lid    INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w1st   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w2nd   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                occurrences INTEGER DEFAULT 0, -- times this pair appears in this language/page
                                PRIMARY KEY(lid,w1st,w2nd))
                                WITHOUT ROWID

### Question
Indicate which is the word that is repeated the most times.

### Hint
repeated the most times refer to MAX(occurrences);

### SQL
SELECT word FROM words WHERE occurrences = ( SELECT MAX(occurrences) FROM words )
### Database Schema
CREATE TABLE langs(lid    INTEGER PRIMARY KEY AUTOINCREMENT,
                            lang   TEXT UNIQUE,
                            locale TEXT UNIQUE,
                            pages  INTEGER DEFAULT 0,  -- total pages in this language
                            words  INTEGER DEFAULT 0)

CREATE TABLE sqlite_sequence(name,seq)

CREATE TABLE pages(pid INTEGER PRIMARY KEY AUTOINCREMENT,
                            lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                            page INTEGER DEFAULT NULL, -- wikipedia page id
                            revision INTEGER DEFAULT NULL, -- wikipedia revision page id
                            title TEXT,
                            words INTEGER DEFAULT 0, -- number of different words in this page
                            UNIQUE(lid,page,title))

CREATE TABLE words(wid INTEGER PRIMARY KEY AUTOINCREMENT,
                            word        TEXT UNIQUE,
                            occurrences INTEGER DEFAULT 0)

CREATE TABLE langs_words(lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER, -- repetitions of this word in this language
                                        PRIMARY KEY(lid,wid))
                                        WITHOUT ROWID

CREATE TABLE pages_words(pid INTEGER REFERENCES pages(pid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER DEFAULT 0, -- times this word appears into this page
                                        PRIMARY KEY(pid,wid))
                                        WITHOUT ROWID

CREATE TABLE biwords(lid    INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w1st   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w2nd   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                occurrences INTEGER DEFAULT 0, -- times this pair appears in this language/page
                                PRIMARY KEY(lid,w1st,w2nd))
                                WITHOUT ROWID

### Question
Indicate the page id of Wikipedia about Catalan language of all the pages that have a numeric value in their title.

### Hint
the page id of Wikipedia refers to pid; numeric value contains only numbers, LIKE '%0%' OR '%1%' OR '%2%' OR '%3%' OR '%4%' OR '%5%' OR '%6%' OR '%7%' OR '%8%' OR '%9%';

### SQL
SELECT pid, title FROM pages WHERE title LIKE '%0%' OR '%1%' OR '%2%' OR '%3%' OR '%4%' OR '%5%' OR '%6%' OR '%7%' OR '%8%' OR '%9%'
### Database Schema
CREATE TABLE langs(lid    INTEGER PRIMARY KEY AUTOINCREMENT,
                            lang   TEXT UNIQUE,
                            locale TEXT UNIQUE,
                            pages  INTEGER DEFAULT 0,  -- total pages in this language
                            words  INTEGER DEFAULT 0)

CREATE TABLE sqlite_sequence(name,seq)

CREATE TABLE pages(pid INTEGER PRIMARY KEY AUTOINCREMENT,
                            lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                            page INTEGER DEFAULT NULL, -- wikipedia page id
                            revision INTEGER DEFAULT NULL, -- wikipedia revision page id
                            title TEXT,
                            words INTEGER DEFAULT 0, -- number of different words in this page
                            UNIQUE(lid,page,title))

CREATE TABLE words(wid INTEGER PRIMARY KEY AUTOINCREMENT,
                            word        TEXT UNIQUE,
                            occurrences INTEGER DEFAULT 0)

CREATE TABLE langs_words(lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER, -- repetitions of this word in this language
                                        PRIMARY KEY(lid,wid))
                                        WITHOUT ROWID

CREATE TABLE pages_words(pid INTEGER REFERENCES pages(pid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER DEFAULT 0, -- times this word appears into this page
                                        PRIMARY KEY(pid,wid))
                                        WITHOUT ROWID

CREATE TABLE biwords(lid    INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w1st   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w2nd   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                occurrences INTEGER DEFAULT 0, -- times this pair appears in this language/page
                                PRIMARY KEY(lid,w1st,w2nd))
                                WITHOUT ROWID

### Question
What is the title of the page that has the fewest words?

### Hint
has the fewest words refers to MIN(COUNT(words));

### SQL
SELECT title FROM pages WHERE title = ( SELECT MIN(words) FROM pages )
### Database Schema
CREATE TABLE langs(lid    INTEGER PRIMARY KEY AUTOINCREMENT,
                            lang   TEXT UNIQUE,
                            locale TEXT UNIQUE,
                            pages  INTEGER DEFAULT 0,  -- total pages in this language
                            words  INTEGER DEFAULT 0)

CREATE TABLE sqlite_sequence(name,seq)

CREATE TABLE pages(pid INTEGER PRIMARY KEY AUTOINCREMENT,
                            lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                            page INTEGER DEFAULT NULL, -- wikipedia page id
                            revision INTEGER DEFAULT NULL, -- wikipedia revision page id
                            title TEXT,
                            words INTEGER DEFAULT 0, -- number of different words in this page
                            UNIQUE(lid,page,title))

CREATE TABLE words(wid INTEGER PRIMARY KEY AUTOINCREMENT,
                            word        TEXT UNIQUE,
                            occurrences INTEGER DEFAULT 0)

CREATE TABLE langs_words(lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER, -- repetitions of this word in this language
                                        PRIMARY KEY(lid,wid))
                                        WITHOUT ROWID

CREATE TABLE pages_words(pid INTEGER REFERENCES pages(pid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER DEFAULT 0, -- times this word appears into this page
                                        PRIMARY KEY(pid,wid))
                                        WITHOUT ROWID

CREATE TABLE biwords(lid    INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w1st   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w2nd   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                occurrences INTEGER DEFAULT 0, -- times this pair appears in this language/page
                                PRIMARY KEY(lid,w1st,w2nd))
                                WITHOUT ROWID

### Question
What is the pair of words that is repeated the most times? Identify them by their ID.

### Hint
repeated the most times refer to MAX(occurrences); pair is a relationship of two words: w1st and w2nd, where w1st is word id of the first word and w2nd is a word id of the second word;

### SQL
SELECT w1st, w2nd FROM biwords WHERE occurrences = ( SELECT MAX(occurrences) FROM biwords )
### Database Schema
CREATE TABLE langs(lid    INTEGER PRIMARY KEY AUTOINCREMENT,
                            lang   TEXT UNIQUE,
                            locale TEXT UNIQUE,
                            pages  INTEGER DEFAULT 0,  -- total pages in this language
                            words  INTEGER DEFAULT 0)

CREATE TABLE sqlite_sequence(name,seq)

CREATE TABLE pages(pid INTEGER PRIMARY KEY AUTOINCREMENT,
                            lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                            page INTEGER DEFAULT NULL, -- wikipedia page id
                            revision INTEGER DEFAULT NULL, -- wikipedia revision page id
                            title TEXT,
                            words INTEGER DEFAULT 0, -- number of different words in this page
                            UNIQUE(lid,page,title))

CREATE TABLE words(wid INTEGER PRIMARY KEY AUTOINCREMENT,
                            word        TEXT UNIQUE,
                            occurrences INTEGER DEFAULT 0)

CREATE TABLE langs_words(lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER, -- repetitions of this word in this language
                                        PRIMARY KEY(lid,wid))
                                        WITHOUT ROWID

CREATE TABLE pages_words(pid INTEGER REFERENCES pages(pid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER DEFAULT 0, -- times this word appears into this page
                                        PRIMARY KEY(pid,wid))
                                        WITHOUT ROWID

CREATE TABLE biwords(lid    INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w1st   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w2nd   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                occurrences INTEGER DEFAULT 0, -- times this pair appears in this language/page
                                PRIMARY KEY(lid,w1st,w2nd))
                                WITHOUT ROWID

### Question
How many total occurrences are there in the three-letter words?

### Hint
three-letter words are words composed of exactly three letters;

### SQL
SELECT SUM(occurrences) FROM words WHERE LENGTH(word) = 3
### Database Schema
CREATE TABLE langs(lid    INTEGER PRIMARY KEY AUTOINCREMENT,
                            lang   TEXT UNIQUE,
                            locale TEXT UNIQUE,
                            pages  INTEGER DEFAULT 0,  -- total pages in this language
                            words  INTEGER DEFAULT 0)

CREATE TABLE sqlite_sequence(name,seq)

CREATE TABLE pages(pid INTEGER PRIMARY KEY AUTOINCREMENT,
                            lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                            page INTEGER DEFAULT NULL, -- wikipedia page id
                            revision INTEGER DEFAULT NULL, -- wikipedia revision page id
                            title TEXT,
                            words INTEGER DEFAULT 0, -- number of different words in this page
                            UNIQUE(lid,page,title))

CREATE TABLE words(wid INTEGER PRIMARY KEY AUTOINCREMENT,
                            word        TEXT UNIQUE,
                            occurrences INTEGER DEFAULT 0)

CREATE TABLE langs_words(lid INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER, -- repetitions of this word in this language
                                        PRIMARY KEY(lid,wid))
                                        WITHOUT ROWID

CREATE TABLE pages_words(pid INTEGER REFERENCES pages(pid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        wid INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                        occurrences INTEGER DEFAULT 0, -- times this word appears into this page
                                        PRIMARY KEY(pid,wid))
                                        WITHOUT ROWID

CREATE TABLE biwords(lid    INTEGER REFERENCES langs(lid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w1st   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                w2nd   INTEGER REFERENCES words(wid) ON UPDATE CASCADE ON DELETE CASCADE,
                                occurrences INTEGER DEFAULT 0, -- times this pair appears in this language/page
                                PRIMARY KEY(lid,w1st,w2nd))
                                WITHOUT ROWID

### Question
Calculate the average number of different words that appear on all pages whose title begins with A.

### Hint
DIVIDE(SUM(words WHERE title = 'A%'), COUNT(words WHERE title = 'A%')) as percentage; A is a letter;

### SQL
SELECT AVG(words) FROM pages WHERE title LIKE 'A%'