Database schema:

CREATE TABLE tags (
	"index" INTEGER -- example: ['0', '1'],
	id INTEGER -- example: ['0', '2'],
	tag TEXT -- example: ['funk', '1970s'],
	PRIMARY KEY ("index"), 
	CONSTRAINT fk_tags_torrents FOREIGN KEY(id) REFERENCES torrents (id)
)


CREATE TABLE torrents (
	"groupName" TEXT -- example: ['spiderap / a corona jam', 'superappin&#39;'],
	"totalSnatched" INTEGER -- example: ['239', '156'],
	artist TEXT -- example: ['grandmaster flash & the furious five', 'ron hunt & ronnie g & the sm crew'],
	"groupYear" INTEGER -- example: ['1979', '1980'],
	"releaseType" TEXT -- example: ['single', 'album'],
	"groupId" INTEGER -- example: ['720949', '728752'],
	id INTEGER -- example: ['0', '1'],
	PRIMARY KEY (id)
)

Question: Provide the name of the artist who released his or her Single-Table in 2012 with the highest number of downloads. Name the Single-Table title as well.
Evidence: title refers to groupName; the highest number of downloads refers to MAX(totalSnatched where groupYear = 2012 and releaseType = 'single');

SQL:
SELECT artist, groupName FROM torrents WHERE groupYear = 2012 AND releaseType LIKE 'Single' ORDER BY totalSnatched DESC LIMIT 1