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SQL Server DATEDIFF() 函数
SQL like、charIndex
分类:数据库   时间:2014-09-07 13:29:05    阅读次数:582
超过varchar定义长度
mysql> select version();+------------+| version() |+------------+| 5.1.73-log |+------------+1 row in set (0.00 sec)mysql> show variables like 'colla....
分类:其他好文   时间:2014-09-07 09:48:14    阅读次数:205
《The Story of My Life》Introductiom - A Journey Of Discovery
"I do not object to harsh criticism," said Helen Keller, "so long as I am treated like a human being who has a mind of her own." The Story of My Lif.....
分类:其他好文   时间:2014-09-06 22:25:33    阅读次数:288
Letter Combinations of a Phone Number
Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon...
分类:其他好文   时间:2014-09-06 18:40:43    阅读次数:224
stuff about set multiset map multimap
A lot of interviewers like to ask the candidates the difference between set and multiset(map and multimap).What does multi actually mean?Multi-conta.....
分类:其他好文   时间:2014-09-06 16:04:23    阅读次数:285
Oracle本地管理对照数据字典管理表空间
Locally vs. Dictionary Managed Tablespaces整理自:http://www.orafaq.com/node/3.When Oracleallocates space to a segment (like a table or index), a group of...
分类:数据库   时间:2014-09-06 13:37:03    阅读次数:286
Mybatis的<where><if>标签
SELECT * FROM user_user_t province_id=#{provinceId} province_id LIKE CONCAT('%','${provinceId}','%' ) LIMIT #{pageIndex},#{pageSize} 上面这段代码的意思是,在查询user表时,判断省份id是否为0,...
分类:其他好文   时间:2014-09-05 22:28:52    阅读次数:257
转:PHP开发框架流行度排名:Laravel居首
原文来自于:http://www.sitepoint.com/best-php-frameworks-2014/Update: If you’d like to take part in the next high-yield survey from SitePoint, please vote f...
分类:Web程序   时间:2014-09-05 22:21:02    阅读次数:376
查询特殊字符
howtofilterouttherowsthatthereisasinglequoteinthecontentofafield?orpencentsign?怎样把一个字段内容有单引号或者百分号的记录选出来SQL中查询特殊字符(如%)使用ESCAPE定义转义符 在使用LIKE关键字进行模糊查询时,....
分类:其他好文   时间:2014-09-05 15:55:51    阅读次数:542
[转]Oracle 创建 DBLink 的方法
http://blog.csdn.net/davidhsing/article/details/64087701、如果需要创建全局 DBLink,则需要先确定用户有创建 dblink 的权限:select * from user_sys_privs where privilege like uppe...
分类:数据库   时间:2014-09-05 00:55:50    阅读次数:393
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