CREATE TABLE table_203_281 (id NUMBER, "season" NUMBER, "pitcher" CLOB, "decision" CLOB, "final\ score" CLOB, "opponent" CLOB, "location" CLOB)

how many times was nolan ryan the opening day pitcher for the astros ?
SELECT COUNT(*) FROM table_203_281 WHERE "pitcher" = 'nolan ryan'
SELECT COUNT(*) FROM "table_203_281" WHERE "pitcher" = 'nolan ryan'