CREATE TABLE "official_versions" (
  "version" text,
  "length" text,
  "album" text,
  "remixed_by" text,
  "year" real
);

Question: Who remixed an album of dance remixes?
SQL: SELECT "remixed_by" FROM "official_versions" WHERE "album"='dance remixes';

Question: Who remixed a music video in 1985?
SQL: SELECT "remixed_by" FROM "official_versions" WHERE "year"=1985 AND "version"='music video';

Question: What year was Mother's Live remix created?
SQL: SELECT SUM("year") FROM "official_versions" WHERE "version"='mother''s live remix';