Using NOT with NULL value : NOT « Logic Operator « MySQL Tutorial






  1. MySQL Tutorial
  2. Logic Operator
  3. NOT
mysql>
mysql>
mysql> SELECT NOT NULL;
+----------+
| NOT NULL |
+----------+
|     NULL |
+----------+
1 row in set (0.00 sec)








8.3.NOT
8.3.1.NOT: !
8.3.2.Using NOT with integer value
8.3.3.Using NOT with NULL value
8.3.4.SELECT NOT (1 + 1);