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,
"Name" TEXT,
"Country" TEXT,
"Song_release_year" TEXT,
"Age" INT,
PRIMARY KEY ("Singer_ID")
);

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





INSERT INTO "concert" VALUES ("1", "2018");
INSERT INTO "concert" VALUES ("2", "2019");
INSERT INTO "concert" VALUES ("3", "2020");
INSERT INTO "concert" VALUES ("4", "2021");
INSERT INTO "concert" VALUES ("5", "2022");
INSERT INTO "concert" VALUES ("6", "2023");
INSERT INTO "singer" VALUES ("1", "Alice Johnson", "United States", "2015", "34");
INSERT INTO "singer" VALUES ("2", "Bob Smith", "Canada", "2010", "45");
INSERT INTO "singer" VALUES ("3", "Carlos Mendez", "Mexico", "2018", "29");
INSERT INTO "singer" VALUES ("4", "Diana Lee", "South Korea", "2012", "40");
INSERT INTO "singer" VALUES ("5", "Ethan Brown", "United Kingdom", "2019", "22");
INSERT INTO "singer" VALUES ("6", "Fatima Zahra", "Morocco", "2016", "34");
INSERT INTO "singer" VALUES ("7", "George Ivanov", "Russia", "2011", "50");
INSERT INTO "singer" VALUES ("8", "Hana Suzuki", "Japan", "2014", "40");
INSERT INTO "singer" VALUES ("9", "Isabella Rossi", "Italy", "2013", "45");
INSERT INTO "singer" VALUES ("10", "Jamal Ahmed", "Egypt", "2017", "29");
INSERT INTO "stadium" VALUES ("1", "New York");
INSERT INTO "stadium" VALUES ("2", "Toronto");
INSERT INTO "stadium" VALUES ("3", "Mexico City");
INSERT INTO "stadium" VALUES ("4", "Seoul");
INSERT INTO "stadium" VALUES ("5", "London");
INSERT INTO "stadium" VALUES ("6", "Casablanca");
INSERT INTO "stadium" VALUES ("7", "Moscow");
INSERT INTO "stadium" VALUES ("8", "Tokyo");
INSERT INTO "stadium" VALUES ("9", "Rome");
INSERT INTO "stadium" VALUES ("10", "Cairo");