向表中插入一条数据
create table emp1
as
select employee_id , last_name , hire_date , salary from employees
where 1 = 2
需要注意的是,插入的数据,必须和表中数据种类,一一对应
insert into emp1
values(1001,'abc',to_date('1998-12-11',...
分类:
数据库 时间:
2015-02-03 19:30:58
阅读次数:
233
Q:Given a linked list, remove the nth node
from the end of list and return its head.
For example,
Given linked list: 1->2->3->4->5, and n = 2.
After removing the second node from the ...
分类:
其他好文 时间:
2015-02-03 13:20:16
阅读次数:
132
思路:
先让p指向head,p往后移动n个节点,然后让q指向head,p和q一起后移直至p指向最后一个结点,则q指向的结点即是倒数第n个结点。当然,倒数第len(链表的长度)个结点是一个特殊情况,直接head=head.next即可。...
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其他好文 时间:
2015-02-03 11:06:08
阅读次数:
144
Java中方法参数传递是:值传递(Pass By Value)publicclassParameterDemo{publicvoidchangeValue1(inta){a=8;}publicvoidchangeValue2(Employeee){e.salary=8000;}publicvoidc...
分类:
编程语言 时间:
2015-02-02 19:28:27
阅读次数:
212
原题地址基本模拟代码: 1 ListNode *removeNthFromEnd(ListNode *head, int n) { 2 ListNode *fast = head; 3 ListNode *slow = head; 4 ListNode...
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其他好文 时间:
2015-02-02 15:33:58
阅读次数:
142
Given a linked list, remove the nth node from the end of list and return its head.
For example,
Given linked list: 1->2->3->4->5, and n = 2.
After removing the second node from the end, the...
分类:
其他好文 时间:
2015-02-02 12:37:03
阅读次数:
125
The Employee table holds all employees including their managers. Every employee has an Id,
and there is also a column for the manager Id.
+----+-------+--------+-----------+
| Id | Name | Salary |...
分类:
数据库 时间:
2015-02-01 21:55:11
阅读次数:
418
Given a linked list, remove the nth node from the end of list and return its head.
For example,
Given linked list: 1->2->3->4->5, and n = 2.
After removing the second node from the end, the...
分类:
其他好文 时间:
2015-02-01 21:52:41
阅读次数:
300
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:
2015-02-01 13:25:30
阅读次数:
111
原题如下:
Write a SQL query to get the second highest salary from the Employee table.
+----+--------+
| Id | Salary |
+----+--------+
| 1 | 100 |
| 2 | 200 |
| 3 | 300 |
+----+--------+
...
分类:
其他好文 时间:
2015-01-31 21:58:12
阅读次数:
189