text: -- exclusive.test
  -- 
  -- execsql {
  --     CREATE TABLE abc(a, b, c);
  --     INSERT INTO abc VALUES(1, 2, 3);
  --     PRAGMA locking_mode = exclusive;
  -- }
  CREATE TABLE abc(a, b, c);
  INSERT INTO abc VALUES(1, 2, 3);
  PRAGMA locking_mode = exclusive;