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- mysql> UPDATE school SET country="Sweden" WHERE name="Durmstrang Institute";
- Query OK, 1 row affected (0.02 sec)
- Rows matched: 1 Changed: 1 Warnings: 0
- mysql> SELECT * FROM school;
- +----+----------------------------------------------+----------+----------------+
- | id | name | capacity | country |
- +----+----------------------------------------------+----------+----------------+
- | 1 | Beauxbatons Academy of Magic | 550 | France |
- | 2 | Castelobruxo | 380 | Brazil |
- | 3 | Durmstrang Institute | 570 | Sweden |
- | 4 | Hogwarts School of Witchcraft and Wizardry | 450 | United Kingdom |
- | 5 | Ilvermorny School of Witchcraft and Wizardry | 300 | USA |
- | 6 | Koldovstoretz | 125 | Russia |
- | 7 | Mahoutokoro School of Magic | 800 | Japan |
- | 8 | Uagadou School of Magic | 350 | Uganda |
- +----+----------------------------------------------+----------+----------------+
- 8 rows in set (0.00 sec)
- mysql> UPDATE school SET capacity=700 WHERE name="Mahoutokoro School of Magic";
- Query OK, 1 row affected (0.03 sec)
- Rows matched: 1 Changed: 1 Warnings: 0
- mysql> SELECT * FROM school;
- +----+----------------------------------------------+----------+----------------+
- | id | name | capacity | country |
- +----+----------------------------------------------+----------+----------------+
- | 1 | Beauxbatons Academy of Magic | 550 | France |
- | 2 | Castelobruxo | 380 | Brazil |
- | 3 | Durmstrang Institute | 570 | Sweden |
- | 4 | Hogwarts School of Witchcraft and Wizardry | 450 | United Kingdom |
- | 5 | Ilvermorny School of Witchcraft and Wizardry | 300 | USA |
- | 6 | Koldovstoretz | 125 | Russia |
- | 7 | Mahoutokoro School of Magic | 700 | Japan |
- | 8 | Uagadou School of Magic | 350 | Uganda |
- +----+----------------------------------------------+----------+----------------+
- 8 rows in set (0.00 sec)
- mysql> TRUNCATE TABLE school WHERE name LIKE "Magic%";
- ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE name LIKE "Magic%"' at line 1
- mysql> DELETE FROM school WHERE name LIKE "Magic%";
- Query OK, 0 rows affected (0.01 sec)
- mysql> SELECT * FROM school;
- +----+----------------------------------------------+----------+----------------+
- | id | name | capacity | country |
- +----+----------------------------------------------+----------+----------------+
- | 1 | Beauxbatons Academy of Magic | 550 | France |
- | 2 | Castelobruxo | 380 | Brazil |
- | 3 | Durmstrang Institute | 570 | Sweden |
- | 4 | Hogwarts School of Witchcraft and Wizardry | 450 | United Kingdom |
- | 5 | Ilvermorny School of Witchcraft and Wizardry | 300 | USA |
- | 6 | Koldovstoretz | 125 | Russia |
- | 7 | Mahoutokoro School of Magic | 700 | Japan |
- | 8 | Uagadou School of Magic | 350 | Uganda |
- +----+----------------------------------------------+----------+----------------+
- 8 rows in set (0.00 sec)
- mysql> DELETE FROM school WHERE name LIKE "%Magic";
- Query OK, 2 rows affected (0.04 sec)
- mysql> SELECT * FROM school;
- +----+----------------------------------------------+----------+----------------+
- | id | name | capacity | country |
- +----+----------------------------------------------+----------+----------------+
- | 2 | Castelobruxo | 380 | Brazil |
- | 3 | Durmstrang Institute | 570 | Sweden |
- | 4 | Hogwarts School of Witchcraft and Wizardry | 450 | United Kingdom |
- | 5 | Ilvermorny School of Witchcraft and Wizardry | 300 | USA |
- | 6 | Koldovstoretz | 125 | Russia |
- | 7 | Mahoutokoro School of Magic | 700 | Japan |
- +----+----------------------------------------------+----------+----------------+
- 6 rows in set (0.00 sec)
- mysql> DELETE FROM school WHERE name LIKE "%Magic%";
- Query OK, 1 row affected (0.03 sec)
- mysql> SELECT * FROM school;
- +----+----------------------------------------------+----------+----------------+
- | id | name | capacity | country |
- +----+----------------------------------------------+----------+----------------+
- | 2 | Castelobruxo | 380 | Brazil |
- | 3 | Durmstrang Institute | 570 | Sweden |
- | 4 | Hogwarts School of Witchcraft and Wizardry | 450 | United Kingdom |
- | 5 | Ilvermorny School of Witchcraft and Wizardry | 300 | USA |
- | 6 | Koldovstoretz | 125 | Russia |
- +----+----------------------------------------------+----------+----------------+
- 5 rows in set (0.00 sec)
- mysql>
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