在创建 MySQL 视图时如何使用逻辑运算符组合？

MySQL 视图可以通过使用 AND、OR 和 NOT 等逻辑运算符的组合来创建。可以借助以下示例进行说明 -

示例

mysql> Create or Replace View Info AS select ID, Name, Address , Subject FROM Student_info WHERE (Subject = 'Computers' AND ADDRESS = 'Delhi') OR (Subject = 'History' AND Address = 'Amritsar');
Query OK, 0 rows affected (0.11 sec)

mysql> Select * from Info;
+------+-------+---------+-----------+
| ID   | Name  | Address | Subject   |
+------+-------+---------+-----------+
| 133  | Mohan | Delhi   | Computers |
+------+-------+---------+-----------+
1 row in set (0.00 sec)

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