CREATE TABLE "doubles_7_3_4" (
  "outcome" text,
  "year" real,
  "championship" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);

Question: Who was playing when the score was 5–7, 6–7 (4–7)?
SQL: SELECT "opponents" FROM "doubles_7_3_4" WHERE "score"='5–7, 6–7 (4–7)';

Question: Who was playing when the score was 5–7, 5–7?
SQL: SELECT "opponents" FROM "doubles_7_3_4" WHERE "score"='5–7, 5–7';

Question: How many partners were there when the score was 7–6 (7–4) , 6–3?
SQL: SELECT COUNT("partner") FROM "doubles_7_3_4" WHERE "score"='7–6 (7–4) , 6–3';