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SQL Server判断对象是否存在 (if exists (select * from sysobjects )(转)
1 判断数据库是否存在Sql代码 if exists (select * from sys.databases where name = ’数据库名’) drop database [数据库名] if exists (select * from sys.databases where name =....
分类:数据库   时间:2014-05-26 18:25:37    阅读次数:312
uva 10673 Play with Floor and Ceil
Problem APlay with Floor and CeilInput:standard inputOutput:standard outputTime Limit:1 secondTheoremFor any two integersxandkthere exists two more in...
分类:其他好文   时间:2014-05-26 14:21:44    阅读次数:270
【LeetCode】Word Search
Word SearchGiven a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, wh...
分类:其他好文   时间:2014-05-26 08:21:06    阅读次数:310
同一张表,查询某人最新一条记录
这是一张表的数据记录,现在想查询每个stuname最新的一条全部记录,也就是王鹏、王山、王丽最新的一条记录,查出来的结果在一张表上。 解法:select * from table as a where exists(select 1 from table group by stuname havin...
分类:其他好文   时间:2014-05-26 07:48:25    阅读次数:212
当用Myeclipse8.6集成开发环境,进行JavaWeb项目开发的时候,用集成开发环境中的run Server进行程序调试时,出现如下错误解决方案
Several ports(8080,8009)required by Tomcat v6.0 Server at localhost are already in use.The server may already be running in another process, or a system process may be using the port, To start this server you will need to stop the other process or change t...
分类:编程语言   时间:2014-05-26 03:41:22    阅读次数:364
PHP
php在数组中查找指定值是否存在的方法有很多,记得很久以前我一直都是傻傻的用foreach循环来查找的,下面我主要分享一下用php内置的三个数组函数来查找指定值是否存在于数组中,这三个数组分别是 in_array(),array_search(),array_key_exists()。首先分别介绍一...
分类:Web程序   时间:2014-05-25 19:35:54    阅读次数:272
xml cannot be resolved or is not a field
loadHeadersFromResource(R.xml.settings_headers, headers); error: xml cannot be resolved or is not a field, but res/xml/settings_headers.xml exists. Every xml file will have its own ID in R.java,...
分类:其他好文   时间:2014-05-25 16:19:23    阅读次数:206
launch genymotion simulator from command line
Command to launch genymotion headless -player --vm-name Nexus_4if player is not already added to path, add it to path using below command in your ~/.b...
分类:其他好文   时间:2014-05-24 10:13:35    阅读次数:320
ORA-27100 shared memory realm already exists错误解决方法
环境:win 2003   + oracle 10g             win 2003服务器物理内存4G             oracle10g SGA             1504M 事故背景: 调整SGA大小,因为OS的内存只有4G,建议SGA的大小不要超过60%,我调整为2G  SQL> alter systemset sga_max_size=2000m ...
分类:其他好文   时间:2014-05-22 23:46:00    阅读次数:430
POJ 1458 Common Subsequence.(最长公共子序列)
Description A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = another sequence Z = is a subsequence of X if there exists a ...
分类:其他好文   时间:2014-05-21 10:58:39    阅读次数:237
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