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 "concert" (
"concert_ID" INT,
"Year" TEXT,
PRIMARY KEY ("concert_ID")
);

CREATE TABLE "singer" (
"Singer_ID" INT,
"Song_release_year" TEXT,
PRIMARY KEY ("Singer_ID")
);

CREATE TABLE "stadium" (
"Stadium_ID" INT UNIQUE,
"Name" TEXT,
PRIMARY KEY ("Stadium_ID")
);





INSERT INTO "concert" VALUES ("1", "2014");
INSERT INTO "concert" VALUES ("2", "2015");
INSERT INTO "concert" VALUES ("3", "2014");
INSERT INTO "concert" VALUES ("4", "2016");
INSERT INTO "concert" VALUES ("5", "2015");
INSERT INTO "concert" VALUES ("6", "2017");
INSERT INTO "concert" VALUES ("7", "2014");
INSERT INTO "concert" VALUES ("8", "2018");
INSERT INTO "concert" VALUES ("9", "2015");
INSERT INTO "concert" VALUES ("10", "2019");
INSERT INTO "singer" VALUES ("1", "2014");
INSERT INTO "singer" VALUES ("2", "2015");
INSERT INTO "singer" VALUES ("3", "2016");
INSERT INTO "singer" VALUES ("4", "2014");
INSERT INTO "singer" VALUES ("5", "2017");
INSERT INTO "singer" VALUES ("6", "2015");
INSERT INTO "singer" VALUES ("7", "2018");
INSERT INTO "singer" VALUES ("8", "2014");
INSERT INTO "singer" VALUES ("9", "2019");
INSERT INTO "singer" VALUES ("10", "2015");
INSERT INTO "stadium" VALUES ("1", "Wembley Stadium");
INSERT INTO "stadium" VALUES ("2", "Madison Square Garden");
INSERT INTO "stadium" VALUES ("3", "Staples Center");
INSERT INTO "stadium" VALUES ("4", "O2 Arena");
INSERT INTO "stadium" VALUES ("5", "Tokyo Dome");
INSERT INTO "stadium" VALUES ("6", "Allianz Arena");
INSERT INTO "stadium" VALUES ("7", "Camp Nou");
INSERT INTO "stadium" VALUES ("8", "Bird's Nest Stadium");
INSERT INTO "stadium" VALUES ("9", "Rose Bowl");
INSERT INTO "stadium" VALUES ("10", "Sydney Opera House");