CREATE TABLE "variants" (
  "version" text,
  "fairing" text,
  "cc_bs" real,
  "sr_bs" text,
  "upper_stage" text,
  "payload_to_leo" text,
  "payload_to_gto" text,
  "launches_to_date" real
);

Question: What Upper stage has Launches to date of 0, and Version of 532?
SQL: SELECT "upper_stage" FROM "variants" WHERE "launches_to_date"=0 AND "version"='532';

Question: What is the greatest CCBs with Launches to date of 4, and a Payload to GTO of 8,900kg?
SQL: SELECT MAX("cc_bs") FROM "variants" WHERE "launches_to_date"=4 AND "payload_to_gto"='8,900kg';

Question: What Payload to GTO has CCBs larger than 1, and a Payload to LEO of 29,400kg?
SQL: SELECT "payload_to_gto" FROM "variants" WHERE "cc_bs">1 AND "payload_to_leo"='29,400kg';

Question: What is the greatest CCBs with a Payload to GTO of –, and an Upper stage of sec?
SQL: SELECT MAX("cc_bs") FROM "variants" WHERE "payload_to_gto"='–' AND "upper_stage"='sec';

Question: What is the total Launches to date with a Version of 541, and CCBs smaller than 1?
SQL: SELECT COUNT("launches_to_date") FROM "variants" WHERE "version"='541' AND "cc_bs"<1;