大约有 7,000 项符合查询结果（耗时：0.0160秒） [XML]
程序员羊皮卷下载版.pdf - 文档下载 - 清泛网 - 专注C/C++及内核技术
...己
5 安排一次真正的实习，了解社会
5 失败的实习生
6 如何找到适合的实习机会
7 实习成功的三有一无
8 开发人员实习应该这样
9 参加一个社团让自己融入团队
9 承担一份责任
10 感受项目经理的无奈
11 真正感受集体的意...
FAT32系统中长文件名的存储 - C/C++ - 清泛网 - 专注C/C++及内核技术
...首字符改写E5H)，都会使长文件名形同虚设。
（长文件名如何与短文件名对应？仅靠她们之间的位置关系？）
长文件名和短文件名之间的联系光靠他们之间的位置关系维系显然远远不够。其实，长文件名的0xD字节的校验和起...
JOIN queries vs multiple queries
... you are joining 3 or more tables on different keys, often databases (i.e. mysql) can only use one index per table, meaning maybe one of the joins will be fast (and use an index) whereas the others will be extremely slow. For multiple queries, you can optimize the indexes to use for each query.
...
Should I commit or rollback a read transaction?
...timization points for your app. If you're really curious, you can find the mySQL transaction handling code at bazaar.launchpad.net/~mysql/mysql-server/mysql-6.0/annotate/…
– Mark Brackett
May 21 '10 at 15:05
...
Error Code: 1005. Can't create table '…' (errno: 150)
...exceeds the maximum length of 64 characters.
For more details, refer to: MySQL Error Number 1005 Can’t create table
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How to execute a raw update sql with dynamic binding in rails
...d try accessing the underlying connection and using it's methods, e.g. for MySQL:
st = ActiveRecord::Base.connection.raw_connection.prepare("update table set f1=? where f2=? and f3=?")
st.execute(f1, f2, f3)
st.close
I'm not sure if there are other ramifications to doing this (connections left op...
Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... POP）、通过 JMS 队列或者可能通过轮询数据库。不管请求如何到达，服务器应用程序中经常出现的情况是：单个任务处理的时间很短而请求的数目却是巨大的。
构建服务器应用程序的一个过于简单的模型应该是：每当一个请求...
UCenter实现各系统通信的原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...统通信的原理===本文导读===UCenter实现各系统通信的原理如何实现phpcms和discuz的Cookie同步===全文阅读===整合phpcms v9和discuz X3.2实现同步登陆、退出免激活===本文导读===
整合phpcms v9和discuz X3.2实现同步登陆、退出免激活
如何实现php...
Why does “_” (underscore) match “-” (hyphen)?
...cluding zero characters).
(From section 3.3.4.7. Pattern Matching in the MySQL documentation.)
If you want to use the underscore in like as a literal, you have to escape it:
select * from a where name like '%taz\_manual%.pdf%';
...
String isNullOrEmpty in Java? [duplicate]
...that when I tried to use StringUtils my IDE (Eclipse) imported it from com.mysql.jdbc.StringUtils which actually has an isNullOrEmpty(myStringObject) method.
ex.
import com.mysql.jdbc.StringUtils;
StringUtils.isNullOrEmpty(host)
Just another alternative for those who already have the MySQL conne...