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 "singer" (
"Singer_ID" INT UNIQUE,
"Net_Worth_Millions" FLOAT,
"Citizenship" TEXT,
PRIMARY KEY ("Singer_ID")
);

CREATE TABLE "song" (
"Song_ID" INT,
"Title" TEXT,
"Sales" FLOAT,
PRIMARY KEY ("Song_ID")
);





INSERT INTO "singer" VALUES ("1", "150.5", "USA");
INSERT INTO "singer" VALUES ("2", "200.0", "UK");
INSERT INTO "singer" VALUES ("3", "150.5", "USA");
INSERT INTO "singer" VALUES ("4", "100.0", "Canada");
INSERT INTO "singer" VALUES ("5", "300.0", "UK");
INSERT INTO "singer" VALUES ("6", "50.0", "USA");
INSERT INTO "singer" VALUES ("7", "250.0", "Canada");
INSERT INTO "singer" VALUES ("8", "120.0", "Australia");
INSERT INTO "singer" VALUES ("9", "180.0", "USA");
INSERT INTO "singer" VALUES ("10", "90.0", "UK");
INSERT INTO "song" VALUES ("1", "Song A", "1000000.0");
INSERT INTO "song" VALUES ("2", "Song B", "500000.0");
INSERT INTO "song" VALUES ("3", "Song C", "2000000.0");
INSERT INTO "song" VALUES ("4", "Song D", "750000.0");
INSERT INTO "song" VALUES ("5", "Song E", "1500000.0");
INSERT INTO "song" VALUES ("6", "Song F", "300000.0");
INSERT INTO "song" VALUES ("7", "Song G", "1200000.0");
INSERT INTO "song" VALUES ("8", "Song H", "900000.0");
INSERT INTO "song" VALUES ("9", "Song I", "1800000.0");
INSERT INTO "song" VALUES ("10", "Song J", "600000.0");