Devcodpanda · May 25, 2020 16:19 · May 25, 2020
diff --git a/Introduction aux bases de données b/Introduction aux bases de données
@@ -0,0 +1,63 @@
+➜  ~ nano db.sql
+➜  ~ mysql -u root -D wild_db_quest -p
+Enter password: 
+Reading table information for completion of table and column names
+You can turn off this feature to get a quicker startup with -A
+...
+
+mysql> DESCRIBE wizard;
++-------------+--------------+------+-----+---------+----------------+
+| Field       | Type         | Null | Key | Default | Extra          |
++-------------+--------------+------+-----+---------+----------------+
+| id          | int          | NO   | PRI | NULL    | auto_increment |
+| firstname   | varchar(100) | NO   |     | NULL    |                |
+| lastname    | varchar(100) | NO   |     | NULL    |                |
+| birthday    | date         | NO   |     | NULL    |                |
+| birth_place | varchar(255) | YES  |     | NULL    |                |
+| biography   | text         | YES  |     | NULL    |                |
++-------------+--------------+------+-----+---------+----------------+
+6 rows in set (0.00 sec)
+
+mysql> ALTER TABLE wizard ADD is_muggle BOOLEAN;
+Query OK, 0 rows affected (0.03 sec)
+Records: 0  Duplicates: 0  Warnings: 0
+
+mysql> CREATE TABLE school ( id INT PRIMARY KEY NOT NULL AUTO_INCREMENT, name VARCHAR(100) NOT NULL, capacity INT, country CHARVAR(255) NOT NULL);
+Query OK, 0 rows affected (0.02 sec)
+
+mysql> DESCRIBE school;
++----------+--------------+------+-----+---------+----------------+
+| Field    | Type         | Null | Key | Default | Extra          |
++----------+--------------+------+-----+---------+----------------+
+| id       | int          | NO   | PRI | NULL    | auto_increment |
+| name     | varchar(100) | NO   |     | NULL    |                |
+| capacity | int          | YES  |     | NULL    |                |
+| country  | varchar(255) | NO   |     | NULL    |                |
++----------+--------------+------+-----+---------+----------------+
+4 rows in set (0.01 sec)
+
+mysql> DESCRIBE wizard
+    -> ;
++-------------+--------------+------+-----+---------+----------------+
+| Field       | Type         | Null | Key | Default | Extra          |
++-------------+--------------+------+-----+---------+----------------+
+| id          | int          | NO   | PRI | NULL    | auto_increment |
+| firstname   | varchar(100) | NO   |     | NULL    |                |
+| lastname    | varchar(100) | NO   |     | NULL    |                |
+| birthday    | date         | NO   |     | NULL    |                |
+| birth_place | varchar(255) | YES  |     | NULL    |                |
+| biography   | text         | YES  |     | NULL    |                |
+| is_muggle   | tinyint(1)   | YES  |     | NULL    |                |
++-------------+--------------+------+-----+---------+----------------+
+7 rows in set (0.00 sec)
+
+mysql> SHOW TABLES;
++-------------------------+
+| Tables_in_wild_db_quest |
++-------------------------+
+| school                  |
+| wizard                  |
++-------------------------+
+2 rows in set (0.00 sec)
+
+mysql>