1、exists/not exsists select?
??b.yid?yid,?b.ytid?ytid?
from?
??t_user?a,?t_yidytidmapping?b?
where?
??a.fk_origin_user?=?b.ytid?
and?
??not?exists?(select?*?from?t_use...
分类：
数据库 时间：
2014-12-04 14:08:00
阅读次数：
200
Given 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, where "adjacent" cells are those horizontally or vertically...
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其他好文 时间：
2014-12-04 08:48:28
阅读次数：
204
10305 - Ordering Tasks
John has n tasks to do. Unfortunately, the tasks are not independent and the execution of one task is only possible if other tasks have already been executed.
Input
The i...
分类：
编程语言 时间：
2014-12-04 01:01:21
阅读次数：
280
Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa...
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其他好文 时间：
2014-12-03 23:15:35
阅读次数：
248
Given 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, where "adjace...
分类：
其他好文 时间：
2014-12-03 22:47:05
阅读次数：
127
yuminstallemacsvi~/.emacs.d/init.el(if(file-exists-p"~/.emacs.d/.emacs")(load"~/.emacs.d/.emacs"))vi~/.emacs.d/.emacs(add-to-list‘load-path"~/.emacs.d/jdee-2.4.1/lisp")(load"jde")cedethttp://sourceforge.net/projects/cedet/?source=dlpecbhttps://github.com/al..
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其他好文 时间：
2014-12-03 19:33:47
阅读次数：
215
原文:SQL点滴29—错误无处不在我只想说以下是很基础的sql知识，但是很容易犯错。所以睁大我们的眼睛，屏住我们的呼吸，小心的检查吧！案例1if not exists (select OrderID from CorpEmailSendQueue where orderid=600643425) b...
分类：
数据库 时间：
2014-12-03 19:08:02
阅读次数：
164
原文:SQL点滴35—SQL语句中的exists比如在Northwind数据库中有一个查询为 SELECT c.CustomerId,CompanyName FROM Customers c WHERE EXISTS( SELECT OrderID FROM Orders o WHERE o.Cus...
分类：
数据库 时间：
2014-12-03 18:49:04
阅读次数：
205
-- 表的结构 `ecs_account_log`CREATE TABLE IF NOT EXISTS `ecs_account_log` (`log_id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT COMMENT '自增ID号',`user_id...
分类：
数据库 时间：
2014-12-03 17:09:20
阅读次数：
286
DescriptionThe Berland State University is hosting a ballroom dance in celebration of its 100500-th anniversary!nboys andmgirls are already busy rehea...
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其他好文 时间：
2014-12-03 16:55:27
阅读次数：
235
