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LeetCode: Convert Sorted Array to Binary Search Tree 解题报告
Convert Sorted Array to Binary Search TreeGiven an array where elements are sorted in ascending order, convert it to a height balanced BST.SOLUTION 1:...
分类:其他好文   时间:2014-12-23 13:52:56    阅读次数:200
【LeetCode】Add Two Numbers
Add Two NumbersYou are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes co...
分类:其他好文   时间:2014-12-23 13:40:36    阅读次数:183
SAP ABAP编程 FOR ALL ENTRIES IN使用指南 将表与内表串联
在ABAP开发中,对于不能使用join的聚集表或者需要使用SELECT 的内表,我们一般使用for all entries in 语句将该表与内表串联,查询出需要的数据,例如 SELECT * FROM zmm_ys_yw INTO TABLE gt_order FOR ALL ENTRIES IN gt_asnum WHERE asnum = gt_asnum-asnum....
分类:其他好文   时间:2014-12-23 12:34:02    阅读次数:245
支付宝 iOS SDK 官方下载页面[转]
from:http://blog.sina.com.cn/s/blog_6f72ff900102v0sw.html藏得太深了,不得不记下来!官方页面地址:https://b.alipay.com/order/productDetail.htm?productId=2013080604609654&t...
分类:移动开发   时间:2014-12-23 12:19:24    阅读次数:558
[leetcode]Permutation Sequence
问题描述: The set [1,2,3,…,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order, We get the following sequence (ie, for n = 3): "123""132""213""...
分类:其他好文   时间:2014-12-22 22:50:08    阅读次数:226
LeetCode: Binary Tree Level Order Traversal 解题报告
Binary Tree Level Order TraversalGiven a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level)....
分类:其他好文   时间:2014-12-22 21:05:37    阅读次数:102
“取出数据表中第10条到第20条记录”的sql语句+select top 用法
1. 首先,select top用法: 参考问题  select top n * from和select * from的区别 select * from table --  取所有数据,返回无序集合 select top n * from table  --根据表内数据存储顺序取前n条,返回无序集合 select * from table order b...
分类:数据库   时间:2014-12-22 19:40:13    阅读次数:415
Subsets
Given a set of distinct integers, S, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must no...
分类:其他好文   时间:2014-12-22 17:55:10    阅读次数:220
row_number()函数
row_number()over( partition by a order by b desc ) rn根据【字段a】分组,分组内根据【字段b】排序,次函数返回的是每组内部排序后的序列号(分组内唯一不重复排序)例子:一张表,求按date,pay排序后的数据,且每天数据只有3条select date...
分类:其他好文   时间:2014-12-22 15:57:51    阅读次数:151
listagg( ) within group ( order by ) 与 wm_concat
listagg( ) within group ( order by ) 与 wm_concat--oracle 11g 及以后适合 最好select spbywslid,listagg(xm,',') within group (order by spbywslid) col_name fr...
分类:其他好文   时间:2014-12-22 09:22:54    阅读次数:298
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