Which Bats have Throws of r, and a DOB of 22 may 1973?
CREATE TABLE "player_roster" (
  "surname" text,
  "first" text,
  "d_o_b" text,
  "bats" text,
  "throws" text,
  "position" text
);
SELECT "bats" FROM "player_roster" WHERE "throws"='r' AND "d_o_b"='22 may 1973';