执行结果
8 rows in set (0.00 sec)
query ok, 1 row affected (0.05 sec)
mysql> select @qqq;
+------+
| @qqq |
| 8 |
1 row in set (0.00 sec)
执行结果
8 rows in set (0.00 sec)
query ok, 1 row affected (0.05 sec)
mysql> select @qqq;
+------+
| @qqq |
| 8 |
1 row in set (0.00 sec)