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java访问数据库的sql
drop database if exists STOREDB;create database STOREDB;use STOREDB;create table CUSTOMERS ( ID bigint not null auto_increment primary key, NAME var.....
分类:数据库   时间:2014-11-18 17:32:28    阅读次数:192
mysql @变量和变量的区别及怎么判断记录唯一性
DELIMITER//drop PROCEDURE if EXISTS test.express;create PROCEDURE test.express()BEGIN select count(1) into @a from test.test_user where userid='user'....
分类:数据库   时间:2014-11-18 17:27:37    阅读次数:319
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.2.3
(1). Let $\sed{A_\al}$ be a family of mutually commuting operators. Then, there exists a common Schur basis for $\sed{A_\al}$. In other words, there e...
分类:其他好文   时间:2014-11-18 13:08:29    阅读次数:168
删除目录下的某些后缀名的文件
#!/usr/bin/python# -*- coding: utf-8 -*-import osimport shutildef move_logs(path,filename): destPath = path + '/../log' if os.path.exists(destPa...
分类:其他好文   时间:2014-11-17 20:57:38    阅读次数:182
Java EE 7 / JAX-RS 2.0: Simple REST API Authentication & Authorization with Custom HTTP Header--reference
REST has made a lot of conveniences when it comes to implementing web services with the already available HTTP protocol at its disposal. By just firin...
分类:编程语言   时间:2014-11-17 19:08:14    阅读次数:328
redis-cli 命令总结
exists(key):确认一个key是否存在 del(key):删除一个key type(key):返回值的类型 keys(pattern):返回满足给定pattern的所有key randomkey:随机返回key空间的一个key...
分类:其他好文   时间:2014-11-17 10:40:50    阅读次数:285
leetcode Word Search
给定一个board字符矩阵,可以从任意一个点开始经过上下左右的方式走,每个点只能走一次,如果存在一条路走过的字符等于给定的字符串,那么返回trueGiven a 2D board and a word, find if the word exists in the grid.The word can...
分类:其他好文   时间:2014-11-17 01:37:43    阅读次数:306
MySQL存储过程
下面是一个MySQL存储过程的简单例子,目的是返回最新插入的一条记录的id值。 demiliter | drop procedure if exists addUser | create procedure addUser(in pname varchar(40),in b...
分类:数据库   时间:2014-11-16 21:34:27    阅读次数:414
SQL SERVER 判断是否存在并删除某个数据库、表、视图、触发器、储存过程、函数
-- SQL SERVER 判断是否存在某个触发器、储存过程-- 判断储存过程,如果存在则删除IF (EXISTS(SELECT * FROM sysobjects WHERE name='procedurename' AND type='P')) DROP PROCEDURE proceduren...
分类:数据库   时间:2014-11-16 21:21:27    阅读次数:397
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.1.1
Given any $k$-tupel of linearly independent vectors $X$ as above, there exists a $k$-tuple $Y$ biorthognal to it. If $k=n$, this $Y$ is unique. \eex$$...
分类:其他好文   时间:2014-11-16 12:02:08    阅读次数:151
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