1.输入 mysql -u root mysql
2.mysql>
状态下输入 update user set password=password('新密码') where user='root';
3.mysql>
状态下输入 FLUSH PRIVILEGES;
(这个指令会让已载入记忆体的
mysql 系统资料库更新)
4.mysql>
状态下输入 quit;
每一行...
分类:
数据库 时间:
2015-08-17 14:01:43
阅读次数:
138
使相同分类中n的值加上m的值: 1 select 分類,mAn=sum(數量) from A where (名稱='m' OR 名稱='n') and 2 3 分類 in( 4 --帶m和n的組至少有一組 5 select an.分類 from 6 ( 7 select 分類,countm fr.....
分类:
数据库 时间:
2015-08-17 13:39:55
阅读次数:
99
1. Creating a project
From the command line, cd into a directory where you’d like to store your code, then
run the following command:
$ django-admin startproject mysite
Let’s look at...
分类:
移动开发 时间:
2015-08-17 01:07:11
阅读次数:
193
./code/profile.php...$db = new db();$SQL = "SELECT * FROM `{$dbprefix}user` WHERE `ID` = {$_COOKIE['User']['ID']}";$Ue = $db -> SelectSQL($SQL,1);...这...
分类:
数据库 时间:
2015-08-17 00:58:36
阅读次数:
160
Gas Station
There are N gas stations along a circular route, where the amount of gas at station i is gas[i].
You have a car with an unlimited gas tank and it costs cost[i] of gas to travel fro...
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其他好文 时间:
2015-08-16 23:08:44
阅读次数:
230
u Calculate e
Problem Description
A simple mathematical formula for e is
where n is allowed to go to infinity. This can actually yield very accurate approximations of e using relatively...
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其他好文 时间:
2015-08-16 18:26:14
阅读次数:
107
MyBatis将 #{…} 解释为JDBC prepared statement 的一个参数标记。也就是说在MyBatis中#{…}是用来传递参数的。例如:如果传递一个参数criteria,值为1,那在select * from table where col1 = #{criteria} 这一条语句中,实际上在数据库里面执行的语句就是 select * from table where col1...
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其他好文 时间:
2015-08-16 16:45:44
阅读次数:
140
Mybatis+spring笔记
1 UserMapper">
select* from `user` where id = #{id}
Namespace需要对应需要匹配的类的路径和类名(需要存在这个类com.yihaomen.mybatis.models.UserMapper)
其中id="selectUserByID"接口中需要存在sele...
分类:
编程语言 时间:
2015-08-16 16:45:02
阅读次数:
255
题目:Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled wi...
分类:
其他好文 时间:
2015-08-16 16:28:34
阅读次数:
100
DELETE FROM Person WHERE LastName = 'Wilson'...
分类:
数据库 时间:
2015-08-16 12:17:09
阅读次数:
158