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搜索关键字:nth highest salary    ( 1735个结果
去除在谓词列上编写的任何数学运算
原因同上一篇《标量函数》一样,会导致不可索引,看代码:select EmpNo,LastNamefrom Empwhere Salary * 1.1 > 5000.00应当写为select EmpNo,LastNamefrom Empwhere Salary > 5000.00/1.1
分类:其他好文   时间:2015-01-23 12:58:08    阅读次数:138
CDZSC_2015寒假新人(1)——基础 B
Description The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which flo...
分类:其他好文   时间:2015-01-23 12:49:27    阅读次数:212
LeetCode SQL: Second Highest Salary
select if(count(salary) = 0, NULL, salary) as `salary` from (select salary from Employee group by salary order by salary desc limit 1,1) tmpWrite a S....
分类:数据库   时间:2015-01-23 06:05:49    阅读次数:136
一些项目——elevator problem
Problem Description The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which floors the elevator will stop, in specifie...
分类:其他好文   时间:2015-01-21 18:22:56    阅读次数:155
[theano]入门-文件读写
文件读写涉及到cPickle这个包。基本的流程在代码中有表述,但是教程中说加一段代码叫做:protocol=cPickle.HIGHEST_PROTOCOL会使得效率大增#!/usr/bin/env python# coding=utf-8import cPicklef=file('obj.txt'...
分类:其他好文   时间:2015-01-20 22:02:06    阅读次数:192
[Leetcode] 19 - Remove Nth Node From End of List
原题链接:https://oj.leetcode.com/problems/remove-nth-node-from-end-of-list/ 这道题是移除倒数第n个node,做法是保持2个指针,一快一慢,快指针先走n步,然后快慢指针同时走,直到快指针变成null。这时将慢指针的值改为next的值。(注意,慢指针其实是指针的指针,以为为了改变指向当前node的指针的值)。个人感觉这题其实...
分类:其他好文   时间:2015-01-20 17:59:27    阅读次数:145
Hive[6] HiveQL 查询
6.1 SELECT ... FROM 语句hive> SELECT name,salary FROM employees; --普通查询hive>SELECT e.name, e.salary FROM employees e;--也支持别名查询当用户选择的列是集合数据类型时,Hive会使用 J....
分类:其他好文   时间:2015-01-18 22:39:51    阅读次数:977
【leetcode】Remove Nth Node From End of List(easy)
Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. After re...
分类:其他好文   时间:2015-01-17 22:10:06    阅读次数:282
[Twitter] Fibonacci Sequence
Question:Givenanumbern,givemeafunctionthatreturnsthenthfibonaccinumber.Runningtime,spacecomplexity,iterativevs.recursive.http://www.glassdoor.com/Interview/Given-a-number-n-give-me-a-function-that-returns-the-nth-fibonacci-number-Running-time-space-complexi..
分类:其他好文   时间:2015-01-16 17:06:01    阅读次数:105
jquery 两个为一组外层加一个div
// 每两个为一组包裹起来 var slides2n = $("#frame").find(".phone-screen:nth-child(2n)").each(function(i){ slides.slice(i*2,i*2+2).wrapAll(""); }); //剩下的再用...
分类:Web程序   时间:2015-01-16 14:32:30    阅读次数:205
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