1,我通set设置autocommit
查看复制打印?
mysql>set global init_connect="set autocommit=0"//提示用权限更高财户设置
ERROR 1227 (42000): Access deniedyou need (at least one of) the SUPER privilege(s) for this operation
mysql>set autocommit=0
Query OK, 0 rows affected (0.00 sec)
mysql>select @@autocommit//查看autocommit设置
+--------------+
| @@autocommit |
+--------------+
| 0 |
+--------------+
1 row in set (0.00 sec)
2,我修改mysql配置文件my.cnf关闭autocommit
查看复制打印?
[mysqld]
init_connect='SET autocommit=0' //mysqld面加些内容
用第二种关点要注意连接mysql用户权限能于启mysql用户权限init_connect='SET autocommit=0'根本启作用报任何错误汗先看实例
查看复制打印?
zhangy@ubuntu:~$ mysql -umysql
Welcome to the MySQL monitor. Commands end with or \g.
Your MySQL connection id is 1
Server version: 5.5.2-m2-log Source distribution
Type 'help' or '\h' for help. Type '\c' to clear the current input statement.
mysql>select @@autocommit//mysql启用户关闭autocommit功
+--------------+
| @@autocommit |
+--------------+
| 0 |
+--------------+
1 row in set (0.00 sec)
mysql>Ctrl-C -- exit!
Aborted
zhangy@ubuntu:~$ mysql -uroot
Welcome to the MySQL monitor. Commands end with or \g.
Your MySQL connection id is 2
Server version: 5.5.2-m2-log Source distribution
Type 'help' or '\h' for help. Type '\c' to clear the current input statement.
mysql>select @@autocommit//用root财户启功
+--------------+
| @@autocommit |
+--------------+
| 1 |
+--------------+
1 row in set (0.00 sec)
mysqlbug呢我网找找面问题真部内容:
If a user has SUPER privilege, init_connect will not execute
(otherwise if init_connect will a wrong query no one can connect to server).
Note, if init_connect is a wrong query, the connection is closing without any errors
and next command will clause 'lost connection' error.
面点说清楚If a user has SUPER privilege, init_connect will not execute用户更高级权限init_connect根本执行
Internal HDD 内置硬盘驱动器
更改mysql中auto的方法:利用这个变量,可以通过如下方式禁用 autocommit:
方法一:
mysql>SET GLOBAL init_connect='SET autocommit=0'
方法二:
在 MySQL 的配置文件中设置
init_connect='SET autocommit=0'
方法三:
启动 mysql 时带上命令行参数 –init_connect='SET autocommit=0'
MySQL的自动提交默认是开启的,用惯了Oracle,习惯了自己去提交或回滚。我们可以通过set来设置autocommit,过程如下:Step 1:使用select @@autocommit来查看当前autocommit设置情况,如下图1:
图1:查看autocommit
1表示自动提交是开启的,0表示自动提交是关闭的,图1可看出,当前是处于开启状态。
Step 2:通过set autocommit = 0来关闭autocommit,如下图2:
图2:设置autocommit
还有别的方法来设置,目前我只用了上面的方法。
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