PRAGMA foreign_keys = ON;

PRAGMA writable_schema = 1;
DELETE FROM sqlite_master WHERE type IN ("table", "index", "trigger");
PRAGMA writable_schema = 0;
VACUUM;

CREATE TABLE "city" (
"ID" INT,
"Population" INT,
PRIMARY KEY ("ID")
);

CREATE TABLE "country" (
"Code" CHAR(3),
"Name" CHAR(52),
"SurfaceArea" FLOAT,
"Population" INT,
"HeadOfState" CHAR(60),
PRIMARY KEY ("Code")
);

CREATE TABLE "countrylanguage" (
"CountryCode" CHAR(3),
"Language" CHAR(30),
PRIMARY KEY ("CountryCode", "Language")
);





INSERT INTO "city" VALUES ("1", "5000000");
INSERT INTO "city" VALUES ("2", "12000000");
INSERT INTO "city" VALUES ("3", "800000");
INSERT INTO "city" VALUES ("4", "3000000");
INSERT INTO "city" VALUES ("5", "15000000");
INSERT INTO "city" VALUES ("6", "4500000");
INSERT INTO "city" VALUES ("7", "700000");
INSERT INTO "city" VALUES ("8", "2000000");
INSERT INTO "city" VALUES ("9", "1000000");
INSERT INTO "city" VALUES ("10", "600000");
INSERT INTO "country" VALUES ("USA", "United States of America", "9833520.0", "331000000", "Joe Biden");
INSERT INTO "country" VALUES ("CAN", "Canada", "9984670.0", "38000000", "Justin Trudeau");
INSERT INTO "country" VALUES ("RUS", "Russia", "17098242.0", "146000000", "Vladimir Putin");
INSERT INTO "country" VALUES ("CHN", "China", "9596961.0", "1402000000", "Xi Jinping");
INSERT INTO "country" VALUES ("BRA", "Brazil", "8515767.0", "212000000", "Jair Bolsonaro");
INSERT INTO "country" VALUES ("AUS", "Australia", "7692024.0", "25600000", "Scott Morrison");
INSERT INTO "country" VALUES ("IND", "India", "3287263.0", "1380000000", "Narendra Modi");
INSERT INTO "country" VALUES ("ARG", "Argentina", "2780400.0", "45000000", "Alberto Fernández");
INSERT INTO "country" VALUES ("KAZ", "Kazakhstan", "2724900.0", "18700000", "Kassym-Jomart Tokayev");
INSERT INTO "country" VALUES ("DZA", "Algeria", "2381741.0", "43000000", "Abdelmadjid Tebboune");
INSERT INTO "countrylanguage" VALUES ("USA", "English");
INSERT INTO "countrylanguage" VALUES ("USA", "Spanish");
INSERT INTO "countrylanguage" VALUES ("CAN", "English");
INSERT INTO "countrylanguage" VALUES ("CAN", "French");
INSERT INTO "countrylanguage" VALUES ("RUS", "Russian");
INSERT INTO "countrylanguage" VALUES ("CHN", "Mandarin");
INSERT INTO "countrylanguage" VALUES ("BRA", "Portuguese");
INSERT INTO "countrylanguage" VALUES ("AUS", "English");
INSERT INTO "countrylanguage" VALUES ("IND", "Hindi");
INSERT INTO "countrylanguage" VALUES ("IND", "English");
INSERT INTO "countrylanguage" VALUES ("ARG", "Spanish");
INSERT INTO "countrylanguage" VALUES ("KAZ", "Kazakh");
INSERT INTO "countrylanguage" VALUES ("DZA", "Arabic");