2.>cd program files\mysql\bin

3.>mysql -uroot -p123456

4.>show databases;

5.>use xscj;

6.>show tables;

7.>select * from city;

8.>select @@autocommit;

9.>set autocommit=0;

10.>insert into city(id,name) values('wx','無錫');

11.>select * from city;

12.>rollback;

13.>select * from city;

14.>insert into city(id,name) values('wx','無錫');

15.>commit;

16.>rollback;

17.>select * from city;

 command命令操作步奏圖：