This time you are asked to tell the difference between the lowest grade of all the male students and the highest grade of all the female students. Inp ...
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其他好文 时间:
2020-05-12 15:19:35
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71
一、隔行换色 $("tr:odd").css("background-color","#eeeeee"); $("tr:even").css("background-color","#ffffff");或者一行搞定:$("table tr:nth-child(odd)").css("backgrou ...
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Web程序 时间:
2020-05-07 22:36:06
阅读次数:
95
Two Pointer 141. Linked List Cycle 判断链表是否有环 Can you solve it using O(1) (i.e. constant) memory? "leetcode 141. Linked List Cycle" 142. Linked List Cyc ...
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其他好文 时间:
2020-05-05 18:11:17
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54
PAT甲级:1036 Boys vs Girls (25分) 题干 This time you are asked to tell the difference between the lowest grade of all the male students and the highest gra ...
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其他好文 时间:
2020-05-05 10:32:02
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63
问题描述:编写一个 SQL 查询,获取 Employee 表中第二高的薪水(Salary),如果不存在第二高的薪水,那么查询应返回 null 。 中间过程: 第一次: select IFNULL((select Salary from Employee order by Salary desc li ...
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数据库 时间:
2020-05-03 11:04:22
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67
1807. 斐波纳契数列简单 中文English Find the Nth number in Fibonacci sequence. A Fibonacci sequence is defined as follow: The first two numbers are 0 and 1. The ...
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其他好文 时间:
2020-05-02 11:35:04
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61
Employee 表保存了一年内的薪水信息。 请你编写 SQL 语句,来查询一个员工三个月内的累计薪水,但是不包括最近一个月的薪水。 结果请按 'Id' 升序,然后按 'Month' 降序显示。 示例:输入: | Id | Month | Salary || | | || 1 | 1 | 20 || ...
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其他好文 时间:
2020-04-26 16:51:32
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73
Kefa decided to celebrate his first big salary by going to the restaurant. He lives by an unusual park. The park is a rooted tree consisting of n vert ...
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其他好文 时间:
2020-04-26 10:57:48
阅读次数:
62
一个简单的存储过程: create or replace procedure insert_user_procedure (id in number,name in varchar2,salary in number,result out varchar2) is begin insert into ...
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数据库 时间:
2020-04-25 23:37:41
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136
-- 插入数据 INSERT INTO [ Salary ] VALUES(25451,4545,45 ) INSERT INTO [ Salary ] (编号,收入,支出) VALUES(25451,4545,487 ) -- 不提供列名则插入默认值,主键重复会出错 -- 两个表表结构一致可以查询 ...
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数据库 时间:
2020-04-23 01:10:42
阅读次数:
99