CREATE TABLE "table_of_dahlgren_boat_howitzers" (
  "designation" text,
  "bore" text,
  "weight" text,
  "service_charge" text,
  "range_yards" text,
  "number_made" real
);

Question: What is the service charge of the boat howitzers with 456 made?
SQL: SELECT "service_charge" FROM "table_of_dahlgren_boat_howitzers" WHERE "number_made"=456;

Question: What is the service chage of the boat howitzers with a 12-pdr light destination?
SQL: SELECT "service_charge" FROM "table_of_dahlgren_boat_howitzers" WHERE "designation"='12-pdr light';

Question: What is the service charge of the boat howitzers with 1009 made?
SQL: SELECT "service_charge" FROM "table_of_dahlgren_boat_howitzers" WHERE "number_made"=1009;

Question: What is the bore of the boat howitzers with a 12-pdr heavy designation?
SQL: SELECT "bore" FROM "table_of_dahlgren_boat_howitzers" WHERE "designation"='12-pdr heavy';