mysql> INSERT INTO school (name, country, capacity) VALUES ('Beauxbatons Academy of Magic', 'France', 550), ('Castelobruxo', 'Brazil', 380), ('Durmstrang Institue', 'Norway', 570), ('Hogwarts School of Witchcraft and Wizardry', 'United Kingdom', 450), ('Ilvermorny School of Witchcraft and Wizardry', 'USA', 300), ('Koldovstoretz', 'Russia', 125), ('Mahoutokoro School of Magic', 'Japan', 800),   ('Uagadou School of Magic', 'Uganda', 350);
Query OK, 8 rows affected (0.00 sec)
Records: 8  Duplicates: 0  Warnings: 0

mysql> SELECT * FROM school;
+----+----------------------------------------------+----------+----------------+
| id | name                                         | capacity | country        |
+----+----------------------------------------------+----------+----------------+
|  1 | Beauxbatons Academy of Magic                 |      550 | France         |
|  2 | Castelobruxo                                 |      380 | Brazil         |
|  3 | Durmstrang Institue                          |      570 | Norway         |
|  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 country='Sweden'
    -> WHERE id=3;
Query OK, 1 row affected (0.00 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 Institue                          |      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 id=7;
Query OK, 1 row affected (0.00 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 Institue                          |      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='Magic';
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT * FROM school;
+----+----------------------------------------------+----------+----------------+
| id | name                                         | capacity | country        |
+----+----------------------------------------------+----------+----------------+
|  1 | Beauxbatons Academy of Magic                 |      550 | France         |
|  2 | Castelobruxo                                 |      380 | Brazil         |
|  3 | Durmstrang Institue                          |      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 > 'Magic';
Query OK, 2 rows affected (0.00 sec)

mysql> SELECT * FROM school;
+----+----------------------------------------------+----------+----------------+
| id | name                                         | capacity | country        |
+----+----------------------------------------------+----------+----------------+
|  1 | Beauxbatons Academy of Magic                 |      550 | France         |
|  2 | Castelobruxo                                 |      380 | Brazil         |
|  3 | Durmstrang Institue                          |      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         |
+----+----------------------------------------------+----------+----------------+
6 rows in set (0.00 sec)