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mysql> CREATE TABLE hackers (
-> id INT AUTO_INCREMENT PRIMARY KEY,
-> nickname VARCHAR(255) NOT NULL UNIQUE
-> );
Query OK, 0 rows affected (0.53 sec)
mysql> INSERT INTO hackers (nickname) VALUES ('leaks');
Query OK, 1 row affected (0.09 sec)
mysql> INSERT INTO hackers (nickname) VALUES ('deneme');
Query OK, 1 row affected (0.08 sec)
mysql> SELECT * FROM hackers;
+----+----------+
| id | nickname |
+----+----------+
| 2 | deneme |
| 1 | leaks |
+----+----------+
2 rows in set (0.00 sec)
Yeni kayıt girilirken otomatik artırılmasını istediğiniz kolon (verdiğiniz örnekte 'id') AUTO_INCREMENT niteliğine sahip olmalıdır. Örnek MySQL komutları ve çıktıları:
Kod:mysql> CREATE TABLE hackers ( -> id INT AUTO_INCREMENT PRIMARY KEY, -> nickname VARCHAR(255) NOT NULL UNIQUE -> ); Query OK, 0 rows affected (0.53 sec) mysql> INSERT INTO hackers (nickname) VALUES ('leaks'); Query OK, 1 row affected (0.09 sec) mysql> INSERT INTO hackers (nickname) VALUES ('deneme'); Query OK, 1 row affected (0.08 sec) mysql> SELECT * FROM hackers; +----+----------+ | id | nickname | +----+----------+ | 2 | deneme | | 1 | leaks | +----+----------+ 2 rows in set (0.00 sec)