SELECT Software_Platform FROM device GROUP BY Software_Platform ORDER BY COUNT(*) DESC LIMIT 1
What is the software platform that is most common amongst all devices?
PRAGMA foreign_keys = ON;

CREATE TABLE "device" (
"Device_ID" int,
"Device" text,
"Carrier" text,
"Package_Version" text,
"Applications" text,
"Software_Platform" text,
PRIMARY KEY ("Device_ID")
);

CREATE TABLE "shop" (
"Shop_ID" int,
"Shop_Name" text,
"Location" text,
"Open_Date" text,
"Open_Year" int,
PRIMARY KEY ("Shop_ID")
);

INSERT INTO  "device" VALUES (1,"BlackBerry Storm 9530","MTS Mobility","5.0.0.808","5.0.0.419","Android");
INSERT INTO  "device" VALUES (2,"Apple","Verizon Wireless","5.0.0.328","5.0.0.328","iOS");
INSERT INTO  "device" VALUES (3,"Huawei","Telus Mobility","5.0.0.419","5.0.0.419","Android");
INSERT INTO  "device" VALUES (4,"Xiaomi","Bell Mobility","5.0.0.419","5.0.0.419","Android");
INSERT INTO  "device" VALUES (5,"Samsung","Iusacell","4.7.0.208","4.7.0.151","Android");
INSERT INTO  "device" VALUES (6,"Galaxy","Vodafone AU","5.0.0.742","5.0.0.451","Android");



INSERT INTO  "shop" VALUES (1,"Dinas Device","Dinas","1 January","2014");
INSERT INTO  "shop" VALUES (2,"Best Buy","Cymmer","15 July","2006");
INSERT INTO  "shop" VALUES (3,"Ferndale","Blaenllechau","8 November","2009");
INSERT INTO  "shop" VALUES (4,"Apple","Blaenllechau","10 June","2009");
INSERT INTO  "shop" VALUES (5,"Pentre store","Pentre","24 February","2011");
INSERT INTO  "shop" VALUES (6,"Tynewydd repair","Porth","11 April","2007");
INSERT INTO  "shop" VALUES (7,"Dinas store","Dinas","13 January","2009");
INSERT INTO  "shop" VALUES (8,"Naval repair","Penygraig","10 December","2010");
INSERT INTO  "shop" VALUES (9,"Gelli repair","Gelli","21 August","2013");
INSERT INTO  "shop" VALUES (10,"Naval's shop","Penygraig","27 January","2014");
INSERT INTO  "shop" VALUES (11,"ATnT","Maerdy","23–24 December","2015");
INSERT INTO  "shop" VALUES (12,"National Cellphone","Wattstown","18 February","2017");

CREATE TABLE "stock" (
"Shop_ID" int,
"Device_ID" int,
"Quantity" int,
PRIMARY KEY ("Shop_ID","Device_ID"),
FOREIGN KEY (`Shop_ID`) REFERENCES `shop`(`Shop_ID`),
FOREIGN KEY (`Device_ID`) REFERENCES `device`(`Device_ID`)
);

INSERT INTO  "stock" VALUES (1,6,100);
INSERT INTO  "stock" VALUES (2,6,110);
INSERT INTO  "stock" VALUES (3,6,134);
INSERT INTO  "stock" VALUES (4,6,56);
INSERT INTO  "stock" VALUES (1,4,200);
INSERT INTO  "stock" VALUES (11,6,112);
INSERT INTO  "stock" VALUES (3,4,124);
INSERT INTO  "stock" VALUES (9,4,51);


('Android',)
