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Sat, 14 Jul 2007 04:10:00 GMT

�q�个寚w��机取样很有用

SELECT * FROM tbl_name ORDER BY RAND() LIMIT 10;

��浪�?/a> 2007-07-14 12:10 发表评论

Sun, 08 Jul 2007 13:29:00 GMT

用current_timestamp�Q�不�q�这个默认值只用在timestamp的列�Q�对datetime列无�?br>
例子�Q?br>

create table default_time (
  id int not null primary key auto_increment,
  name varchar(20) default 'chenlb',
  my_time timestamp default current_timestamp
);

注意�Q�一个表只能有一个timestamp列的默认��gؓ(f��)当前日期旉��?

��浪�?/a> 2007-07-08 21:29 发表评论

Fri, 27 Apr 2007 11:25:00 GMT

MySQL 5.1参考手�?中文mysql.cn)

http://doc.mysql.cn/mysql5/refman-5.1-zh.html-chapter/

官方

http://dev.mysql.com/doc/refman/5.1/zh/index.html

��浪�?/a> 2007-04-27 19:25 发表评论

数据库UTF8 �?GBK

Tue, 10 Apr 2007 15:23:00 GMT

默认UTF8 mysql 数据库备份数据�ؓ(f��)默认GBK 的mysql数据库导�?br>

mysqldump -u root --add-drop-table --default-character-set=gbk tab1 > e:/tab1.sql

备䆾出来的数据只是文件编码�ؓ(f��)GBK, 很个表还是原来的字符�?�q�里是UTF8)

��浪�?/a> 2007-04-10 23:23 发表评论

Sat, 07 Apr 2007 04:18:00 GMT

�q�接代码��L(f��ng)��
http://bbs.mysql.cn/thread-98-1-2.html

mysql的JDBC驱动下蝲
http://bbs.mysql.cn/thread-317-1-1.html

mysql备䆾与恢�?br>http://bbs.mysql.cn/thread-974-1-3.html
http://bbs.mysql.cn/thread-768-1-10.html

关于MYSQL数据的导出导入与版本的�{�?br>http://bbs.mysql.cn/viewthread.php?tid=72&extra=page%3D1%26filter%3Ddigest

如何增加用户
http://bbs.mysql.cn/thread-535-1-12.html

改密�?br>http://bbs.mysql.cn/thread-280-1-8.html

��q��
http://bbs.mysql.cn/thread-1352-1-5.html
http://bbs.mysql.cn/thread-922-1-1.html
http://bbs.mysql.cn/viewthread.php?tid=1320&highlight=mysqld

�q�程�q�接MYSQL的问�?br>http://bbs.mysql.cn/viewthread.php?tid=1892&page=1&extra=#pid9349

PHP5�Q�怎么�q�接MYSQL数据�?不能加蝲
http://bbs.mysql.cn/thread-342-1-12.html
http://bbs.mysql.cn/thread-181-1-1.html

#1251
http://bbs.mysql.cn/viewthread.php?tid=1591&highlight=%231251
http://bbs.mysql.cn/viewthread.php?tid=319&highlight=%231251
http://bbs.mysql.cn/viewthread.php?tid=3597
�~�码
http://bbs.mysql.cn/viewthread.php?tid=1320&extra=page%3D1%26amp%3Bfilter%3Ddigest
http://bbs.mysql.cn/thread-33-1-15.html
http://bbs.mysql.cn/thread-72-1-1.html

WIN服务
http://bbs.mysql.cn/thread-3207-1-1.html

tool
http://bbs.mysql.cn/thread-3526-1-1.html

sql-front
http://bbs.mysql.cn/thread-3193-1-1.html

#1045
http://bbs.mysql.cn/viewthread.php?tid=4430&highlight=1045

timeout
http://bbs.mysql.cn/thread-5215-1-5.html

limit
http://bbs.mysql.cn/thread-4949-1-5.html

mysql refence(PDF)
http://bbs.mysql.cn/thread-5775-1-1.html

如何用SQL语句在MYSQL中徏立主外键关系
http://bbs.mysql.cn/viewthread.php?tid=7057&page=1&extra=page%3D2#pid27486

mysql-front3.2教程
http://bbs.mysql.cn/viewthread.php?tid=7129&page=1&extra=page%3D1#pid27500

mysql5.0忘记root密码
http://bbs.mysql.cn/thread-7765-1-1.html

优秀�?MySQL ��理工具�Q�Navicat MySQL
http://bbs.mysql.cn/thread-6346-1-1.html
Navicat MySQL Client v7.2.9下蝲地址:
http://www.mycodes.net/soft/9642.htm

��浪�?/a> 2007-04-07 12:18 发表评论

linux 下删�?mysql(rpm)

Mon, 19 Mar 2007 12:55:00 GMT

rpm - e MySQL - server - 5.1 . 11 - 0

��浪�?/a> 2007-03-19 20:55 发表评论

MySQL Replication

Fri, 16 Mar 2007 13:37:00 GMT

环境:

两个mysql 5.1.16
一个在win xp��L��(192.168.0.158)�?一个在虚拟机的win xp�?br />
1.��L��务器的my.ini配置如下(把my-medium.ini复制为my.ini):
在[mysqld]里增�?br />

binlog-do-db=test
binlog-ignore-db=mysql

2.�q�入主mysql增加复制用户:

grant file,select,replication slave on *.* to backup@'%' identified by '123456';

3.查看master状态下重启下mysql:

show master status;

create table t_repliction (id int not null auto_increment primary key,name varchar(255) );

�q�加一些数�?

insert into t_repliction (name) values ('chenlb'),('Tenny');

5.从服务器的my.ini配置如下(同样把my-medium.ini复制为my.ini):

[mysqld]

server-id=2
master-host=192.168.0.158
master-user=backup
master-password=123456
master-connect-retry=60
replicate-do-db=test

说明:默认server-id=1要改�?-2^32-1的�?注释有说�?br />log-bin=mysql-bin要保�?br />
6.启动从服务器,�q�查看状�?

show slave status;

�l�果:
*************************** 1. row ***************************
             Slave_IO_State: Waiting for master to send event
                Master_Host: 192.168.0.38
                Master_User: backup
                Master_Port: 3306
              Connect_Retry: 60
            Master_Log_File: mysql-bin.000003
        Read_Master_Log_Pos: 533
             Relay_Log_File: CLB_0-relay-bin.000006
              Relay_Log_Pos: 243
      Relay_Master_Log_File: mysql-bin.000003
           Slave_IO_Running: Yes
          Slave_SQL_Running: Yes
            Replicate_Do_DB: test
        Replicate_Ignore_DB:
         Replicate_Do_Table:
     Replicate_Ignore_Table:
    Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
                 Last_Errno: 0
                 Last_Error:
               Skip_Counter: 0
        Exec_Master_Log_Pos: 533
            Relay_Log_Space: 1087
            Until_Condition: None
             Until_Log_File:
              Until_Log_Pos: 0
         Master_SSL_Allowed: No
         Master_SSL_CA_File:
         Master_SSL_CA_Path:
            Master_SSL_Cert:
          Master_SSL_Cipher:
             Master_SSL_Key:
      Seconds_Behind_Master: 0
1 row in set (0.00 sec)

insert into t_repliction (name) values ('ok');

再在从服务器看看�l�果:
mysql> select * from t_repliction;
+----+--------+
| id | name |
+----+--------+
| 1 | chenlb |
| 2 | Tenny |
| 3 | ok |
+----+--------+
3 rows in set (0.00 sec)

恭喜�(zh��n)�成功了 :)

参�? http://zhhaju.blog.hexun.com/2524561_d.html

��浪�?/a> 2007-03-16 21:37 发表评论

Sun, 04 Feb 2007 12:36:00 GMT

摘要: 阅读全文

��浪�?/a> 2007-02-04 20:36 发表评论