CREATE TABLE "defensive" (
  "player" text,
  "tackles" real,
  "solo" real,
  "assts" real,
  "sacks" real,
  "int_yards" real,
  "int_avg" real,
  "int_td" real,
  "fum_rec" real,
  "fum_rec_td" real
);

Question: What is the sum for the int yards that has an assts more than 3, and player Jay Alford?
SQL: SELECT SUM("int_yards") FROM "defensive" WHERE "assts">3 AND "player"='jay alford';