--显示所有用户表:--1SELECT SCHEMA_NAME(schema_id) As
SchemaName , name As TableName from sys.tables ORDER BY name--2。alternate:SELECT
sch.name As Schem...
分类:
数据库 时间:
2014-05-20 01:49:29
阅读次数:
735
If we define Servlet filters in web.xml, then
the order of execution of the filters will be the same as the order in which
they are defined in the web...
分类:
其他好文 时间:
2014-05-19 23:07:40
阅读次数:
352
代码SELECT A.*FROM( SELECT ROW_NUMBER()
OVER(PARTITION BY Host ORDER BY Host,count(EntranceURL) DESC) AS ROW, Host,
EntranceURL as PageURL ...
分类:
数据库 时间:
2014-05-19 09:12:59
阅读次数:
338
传统单例模式的实现有懒汉、饿汉等模式,也有双锁机制(防止不必要的线程再度进入锁的临界区实例化单例模式的全局变量)。不过据说(未经考证)在VS中CPU开启“out-of-order
execution”,仍然会导致出问题,原因在于: 我们假设a和b线程同时试图初始化单例模式的全局变量,a先进入方...
分类:
其他好文 时间:
2014-05-18 00:21:37
阅读次数:
268
1 select *, rand() as random FROM yef_exercises
where id not in(1) order by random limit 1 // Mysql
分类:
数据库 时间:
2014-05-17 18:58:42
阅读次数:
370
ServerAdmin www.test2.com DocumentRoot
"D:/PHP/Apache/htdocs/testSite2" Options Indexes FollowSymLinks AllowOverride
None Order allow,deny ...
原题:
题目解析:这个问题的实质是要我们按成访问二叉树的结点,并返回每层访问的结果,这里要求走Z字,其实就是一行正向一行反向。
/*
the kernel idea is visit a binary search tree in level and
the additional work we have to label the end of one level.
*/
v...
分类:
其他好文 时间:
2014-05-15 23:18:46
阅读次数:
515
Row_number配合over(partition by xx order by xx) 与
Group by 的区别, = order + group?SqlBulkCopyGuidance Automation Toolkit 2010
Reference
分类:
其他好文 时间:
2014-05-15 20:39:55
阅读次数:
249
【题目】
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.
Input: (2 -> 4 -> 3) + (5 -> 6 -> 4)
Out...
分类:
其他好文 时间:
2014-05-15 05:13:49
阅读次数:
306
1.相关数据表
Score表
[User]表
SQL语句如下:
--查询出各科成绩最好的学生信息
--自连接
--SELECT TOP 1 * FROM Score B WHERE B.ScoreName = '数学' ORDER BY B.Score DESC
SELECT A.ID,U.Name,A.ScoreName,A.Score
FROM Score A,[Use...
分类:
数据库 时间:
2014-05-15 05:02:05
阅读次数:
477