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mac 下修改mysql的密码
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
SQL SERVER练习
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】依照Django官网,编写一个web app
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
songCMS 3.15 cookie SQLINJ
./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
[LeetCode] Gas Station
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...
分类:其他好文   时间:2015-08-16 23:08:44    阅读次数:230
HDU 1012.u Calculate e【水】【8月16】
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...
分类:其他好文   时间:2015-08-16 18:26:14    阅读次数:107
Mybatis中#和$的区别
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...
分类:其他好文   时间:2015-08-16 16:45:44    阅读次数:140
Mybatis+Spring3
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
Valid Sudoku
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
SQL DELETE 语句
DELETE FROM Person WHERE LastName = 'Wilson'...
分类:数据库   时间:2015-08-16 12:17:09    阅读次数:158
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