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mysql>use mysql;
mysql>update user set host='%' where user='root';
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sudo /etc/init.d/mysql restart
[sudo] password for wangzw:
*Stopping MySQL database server mysqld                          [OK]
*Starting  MySQL database server mysqld                          [OK]
*Checking for corrupt, not cleanly closed and updatade needing tables.


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 MSSQL16λ:select Right(sys.fn_VarBinToHexStr(hashbytes('MD5', '123456')),16)
 MySQL:select md5('123456')
 .NET:string ½á¹û×Ö·û´®=System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFil ......

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1.ÈçºÎÉèÖÃ×ֶεÝÔö
create table tb_User(Id int auto_increment
not null primary key,UserName varchar(50),Password varchar(20));
2.²é¿´±í½á¹¹
desc tb_User;
3.ÈçºÎÐ޸ıí½á
ÖØÃüÃû±í£ºalter table tb_User rename
tb_UserInfo;
Ìí¼ÓÒ»ÁУºalter ta ......

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Mysql´Ó5.0¿ªÊ¼Ö§³Ö´æ´¢¹ý³ÌºÍtrigger£¬¸øÎÒÃÇϲ»¶ÓÃmysqlµÄÅóÓÑÃǸüϲ»¶mysqlµÄÀíÓÉÁË£¬Óï·¨
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perlÒ»¸ö¼òµ¥mysql²Ù×÷µÄС³ÌÐò

#!/usr/bin/perl
use Mysql;
print "Content-type:
text/html \n\n";
# MySQL
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$host = "localhost";
$database
= "testdb";
$tablename = "testtable";
$user = "username";
$pw =
"password";
# PERL MYSQL CONNECT()
$connect = ......
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