易截截图软件、单文件、免安装、纯绿色、仅160KB

mysql下的分页存储过程

CREATE PROCEDURE pro_page(
 in _sql varchar(1000),
 in _order varchar(1000),
 in _pagecurrent int,
 in _pagesize int
)
BEGIN
 if _pagesize<=1 then
  set _pagesize=20;
 end if;
 if _pagecurrent < 1 then
  set _pagecurrent = 1;
 end if;
 set @strsql = concat(_sql,' ',_order,' limit ',_pagecurrent*_pagesize-_pagesize,',',_pagesize);
 prepare stmtsql from @strsql;
 execute stmtsql;
 deallocate prepare stmtsql; 
END;


相关文档:

重置MySQL ROOT密码

1、编辑MySQL配置文件:
windows环境中:%MySQL_installdir%\my.ini //一般在MySQL安装目录下有my.ini即MySQL的配置文件。
linux环境中:/etc/my.cnf
在[MySQLd]配置段添加如下一行:
skip-grant-tables
保存退出编辑。
2、然后重启MySQL服务
windows环境中:
net stop MySQL
net start MySQL
linux环境中:
/e ......

修改MYSQL密码


先用root登陆mysql   -u   root   -p  
  mysql>show   databases;  
  mysql>use   mysql;  
update   user   set   password=password('你想设置的密码')  
where   user='root';   ......

MySQL备份、还原

还原一个数据库:mysql -h localhost -u root -p123456 www<c:\www.sql
备份一个数据库:mysqldump -h localhost -u root -p123456 www > d:\www2008-2-26.sql
//以下是在程序中进行测试
//$command = "mysqldump --opt -h $dbhost -u $dbuser -p $dbpass $dbname | gzip > $backupFile";
$command="mysqldum ......

mysql数据库备份

E:\databases\MySQL\MySQL Server 5.1\bin>mysqldump --help
mysqldump  Ver 10.13 Distrib 5.1.30, for Win32 (ia32)
By Igor Romanenko, Monty, Jani & Sinisa
This software comes with ABSOLUTELY NO WARRANTY. This is free softwa
and you are welcome to modify and redistribute it under the GPL ......

查询mysql数据库的大小

(1)INFORMATION_SCHEMA
select (sum(data_length) + sum(index_length))/(1024*1024) from INFORMATION_SCHEMA.`TABLES` where table_schema =  'your_table_schema' and table_name like 'your_table_name';
(2)show table status like '';
try {
Class.forName("com.mysql.jdbc.Driver");
......
© 2009 ej38.com All Rights Reserved. 关于E健网联系我们 | 站点地图 | 赣ICP备09004571号