[root@rhel6 mysql-5.7.17]# ./bin/mysqladmin -uroot -p shutdown
[root@rhel6 mysql-5.7.17]# ./bin/mysqld_safe &
mysql> select version();
+-----------+
| version() |
+-----------+
| 5.7.17 |
+-----------+
1 row in set (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
| test |
| zx |
+--------------------+
6 rows in set (0.00 sec)
mysql> select count(*) from zx.test_upgrade;
+----------+
| count(*) |
+----------+
| 33554432 |
+----------+
1 row in set (0.01 sec)
验证通过后，删除旧版本的MySQL软件。