इसे एक उदाहरण की सहायता से समझा जा सकता है जिसमें हम employee_data_stored नामक टेबल में एक स्टोर्ड जनरेटेड कॉलम बना रहे हैं। जैसा कि हम जानते हैं कि स्टोर्ड जनरेटेड कॉलम STORED कीवर्ड का उपयोग करके बनाया जा सकता है।
उदाहरण
mysql> Create table employee_data_stored(ID INT AUTO_INCREMENT PRIMARY KEY, First_name VARCHAR(50) NOT NULL, Last_name VARCHAR(50) NOT NULL, FULL_NAME VARCHAR(90) GENERATED ALWAYS AS(CONCAT(First_name,' ',Last_name)) STORED);
Query OK, 0 rows affected (0.52 sec)
mysql> DESCRIBE employee_data_stored;
+------------+-------------+------+-----+---------+------------------+
| Field | Type | Null | Key | Default | Extra |
+------------+-------------+------+-----+---------+------------------+
| ID | int(11) | NO | PRI | NULL | auto_increment |
| First_name | varchar(50) | NO | | NULL | |
| Last_name | varchar(50) | NO | | NULL | |
| FULL_NAME | varchar(90) | YES | | NULL | STORED GENERATED |
+------------+-------------+------+-----+---------+------------------+
4 rows in set (0.00 sec)
mysql> INSERT INTO employee_data_stored(first_name, Last_name) values('Gaurav','Kumar');
Query OK, 1 row affected (0.04 sec)
mysql> INSERT INTO employee_data_stored(first_name, Last_name) values('Raman','Singh');
Query OK, 1 row affected (0.09 sec)
mysql> Select * from employee_data_stored;
+----+------------+-----------+--------------+
| ID | First_name | Last_name | FULL_NAME |
+----+------------+-----------+--------------+
| 1 | Gaurav | Kumar | Gaurav Kumar |
| 2 | Raman | Singh | Raman Singh |
+----+------------+-----------+--------------+
2 rows in set (0.00 sec)
