/* mysql> Drop table Bird; Query OK, 0 rows affected (0.00 sec)
mysql> CREATE TABLE Bird ( -> name VARCHAR(20), -> owner VARCHAR(20), -> species VARCHAR(20), -> sex CHAR(1), -> birth DATE, -> death DATE -> ); Query OK, 0 rows affected (0.05 sec)
mysql> INSERT INTO Bird VALUES ('BlueBird','Joe','Car','f','1999-03-30',NULL); Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO Bird VALUES ('RedBird','Yin','Bus','m','1979-04-30',NULL); Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO Bird VALUES ('RedBird','Yin','Bus','m','1998-01-30',NULL); Query OK, 1 row affected (0.00 sec)
mysql> select * from Bird; +----------+-------+---------+------+------------+-------+ | name | owner | species | sex | birth | death | +----------+-------+---------+------+------------+-------+ | BlueBird | Joe | Car | f | 1999-03-30 | NULL | | RedBird | Yin | Bus | m | 1979-04-30 | NULL | | RedBird | Yin | Bus | m | 1998-01-30 | NULL | +----------+-------+---------+------+------------+-------+ 3 rows in set (0.00 sec)
mysql> SELECT name, species, birth FROM Bird -> ORDER BY species, birth DESC; +----------+---------+------------+ | name | species | birth | +----------+---------+------------+ | RedBird | Bus | 1998-01-30 | | RedBird | Bus | 1979-04-30 | | BlueBird | Car | 1999-03-30 | +----------+---------+------------+ 3 rows in set (0.00 sec)
*/ Drop table Bird;
CREATE TABLE Bird ( name VARCHAR(20), owner VARCHAR(20), species VARCHAR(20), sex CHAR(1), birth DATE, death DATE ); INSERT INTO Bird VALUES ('BlueBird','Joe','Car','f','1999-03-30',NULL); INSERT INTO Bird VALUES ('RedBird','Yin','Bus','m','1979-04-30',NULL); INSERT INTO Bird VALUES ('RedBird','Yin','Bus','m','1998-01-30',NULL); select * from Bird;
SELECT name, species, birth FROM Bird ORDER BY species, birth DESC;
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