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Where,having过滤方法总结
一 where过滤 1 使用AND 和 OR 组合查询条件? SELECT * from sell WHERE Sell_Price>=1000 and(or) Sell_Price<=2000? 2 使?用Between 和 Not Between 过滤记录? SELECT * from sell WHERE Sell_Price BETWEE...
分类:其他好文   时间:2015-08-31 12:01:58    阅读次数:170
postgresql 按日期范围查询
按照日期范围查询有好几种方法,日期字段类型一般为:Timestamp without timezone方法一:select * from user_info where create_date >= '2015-07-01' and create_date < '2015-08-15';方法二:select * from user_info where create_date between '...
分类:数据库   时间:2015-08-29 18:52:57    阅读次数:525
pat1036. Boys vs Girls (25)
1036. Boys vs Girls (25)时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueThis time you are asked to tell the difference between the lowest gr...
分类:其他好文   时间:2015-08-29 00:45:35    阅读次数:167
pat1030. Travel Plan (30)
1030. Travel Plan (30)时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueA traveler's map gives the distances between cities along the highways...
分类:其他好文   时间:2015-08-28 22:56:46    阅读次数:146
[leetcode]Contains Duplicate II解题报告 C语言
【题目】 Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the difference between i and j is at most k. 【题目...
分类:编程语言   时间:2015-08-28 17:45:11    阅读次数:272
SPI和API的区别
以下内容来自:http://blog.csdn.net/mosquitolxw/article/details/25290315 What is the difference between Service Provider Interface (SPI) and Application Programming Interface (API)? More specificall...
分类:Windows程序   时间:2015-08-28 15:46:06    阅读次数:277
[CareerCup] 7.2 Ants on Polygon 多边形上的蚂蚁
7.2 There are three ants on different vertices of a triangle. What is the probability of collision (between any two or all of them) if they start walk...
分类:其他好文   时间:2015-08-28 12:39:05    阅读次数:138
存储过程和自定义函数的区别
存储过程和自定义函数的区别Difference between Procedure and User Defined Function首先来看一下存储过程和自定义函数的概念一、 什么是存储过程? 存储过程可以使得对数据库的管理、以及显示关于数据库及其用户信息的工作容易得多。存储过程是 SQL 语句和...
分类:其他好文   时间:2015-08-28 00:28:25    阅读次数:153
自定义函数与储存过程的区别
存储过程和自定义函数的区别 Difference between Procedure and User Defined Function 首先来看一下存储过程和自定义函数的概念 一、 什么是存储过程? 存储过程可以使得对数据库的管理、以及显示关于数据库及其用户信息的工作容易得多。存储过程是...
分类:其他好文   时间:2015-08-27 22:54:40    阅读次数:149
深入理解PHP原理之扩展载入过程
why xdebug extension must be loaded as a zend extension? what is zend extension and what are the differents between regular php extension and zend extension? let’s start from that the extension l...
分类:Web程序   时间:2015-08-27 16:53:05    阅读次数:329
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