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php导出execl
mysql->getarr("select * from {$this->pre}user $where order by uid desc"); * $fields=array('username','money','regtime'); * $fields_array = a...
分类:Web程序   时间:2015-05-04 21:59:53    阅读次数:139
SQL语句 - 基本查询
一、语法结构select select_list[ into new_table ]from table_source[ where search_condition ][ group by broup_by_expression ][ having search_condition ][order...
分类:数据库   时间:2015-05-04 21:46:58    阅读次数:157
[LeetCode] Binary Tree Level Order Traversal II
Binary Tree Level Order Traversal II Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root). For examp...
分类:其他好文   时间:2015-05-04 20:14:35    阅读次数:182
Subsets *
Given a set of distinct integers,nums, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set must not...
分类:其他好文   时间:2015-05-04 20:05:13    阅读次数:111
MyEclipse 引用其他项目及其jar包
倘若在工作区有两个项目A和B,B项目引用A项目及其jar包(防止调用时A项目的方法出现NoClassFound),步骤如下:在A项目上点右键看属性,点击Build Path--->Conconfigure Build Path-->Order and Export,在jar包前面打钩;在B项目上点右...
分类:编程语言   时间:2015-05-04 20:02:44    阅读次数:120
T-SQL 基于列的逻辑表达式 (CASE)
CASE简介 基于列的逻辑表达式,其实就是CASE表达式.可以用在SELECT,UPDATE,DELETE,SET以及IN,WHERE,ORDER BY和HAVING子句之后。由于这里讲的是T-SQL查询,所以只说到CASE表达式在SELECT子句和ORDER BY子句中的使用。 CASE表达式.....
分类:数据库   时间:2015-05-04 19:48:09    阅读次数:161
存储过程分页(一)
(分页一) 简单分页--ROW_NUMBER()实现分页功能 DECLARE @pagenum AS INT, @pagesize AS INTSET @pagenum = 1SET @pagesize = 10SELECT *FROM (SELECT ROW_NUMBER() OVER(ORDER...
分类:其他好文   时间:2015-05-04 15:10:57    阅读次数:240
sql over的作用及用法
over不能单独使用,要和分析函数:rank(),dense_rank(),row_number()等一起使用。其参数:over(partition by columnname1 order by columnname2)含义:按columname1指定的字段进行分组排序,或者说按字段columnn...
分类:数据库   时间:2015-05-04 13:20:17    阅读次数:190
13 Red-black Trees
13 Red-black Trees Red-black trees are one of many search-tree schemes that are "balanced" in order to guarantee that basic dynamic-set operations tak...
分类:其他好文   时间:2015-05-04 11:46:23    阅读次数:187
LeetCode: Sorted Color
Title:Given an array withnobjects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order r...
分类:其他好文   时间:2015-05-04 09:54:40    阅读次数:92
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