慢慢来,慢慢来。。
增:
INSERT INTO person (person_id, fname, lname, gender, birth_date) VALUES (null, 'William', 'Turner', 'M', '1972-05-27');
');
删:
;
改:
ALTER TABLE person MODIFY person_id SMALLINT UNSIGNED AUTO_INCREMENT;
;
查:
SELECT person_id, fname, lname, birth_date from person WHERE lname = 'Turner';