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Unix - copy contents of one directory to another [closed]
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C++ template中typename和class的区别 - C/C++ - 清泛网 - 专注C/C++及内核技术
...外。
For example:
using namespace std;
template <class T> int vcount(vector<T> v) {
int i;
typename vector<T>::iterator vi;
for(i=0,vi=v.begin(); vi!=v.end(); i++,vi++)
;
return(i);
}
更详细的可以参考MSDN资料：
http://blogs.msdn.com/b/slippman/...
Ora-00257 错误处理一列 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
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[oracle@asdlabdb01 ~]$ echo $ORACLE_SID
空的
查看环境变量
vi .bash_profile 没有问题
查看权限
ll .bash_profile
-rw--rw--- 1 oracle oinstall 529 10鏈?24 20:18 /home/oracle/.bash_profile
有问题。修改权限
chmod 775 /home/oracle/.bash_profile
进入O...
解决：ORA-00054:资源正忙,要求指定NOWAIT - 数据库(内核) - 清泛网 - 专注...
...位出哪个回话占用
select l.session_id,o.owner,o.object_name from v$locked_object l,dba_objects o where l.object_id=o.object_id
结果：
session_id owner object_name
158 SA TEST_1
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对比想要创建的索引，定位哪些会话需要被删除
2：找出所有照成锁的会话
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一体化的Linux系统性能和使用活动监控工具–Sysstat - 更多技术 - 清泛网 -...
...和sar协作，用于总结每日报告。
Sadf：以不同的格式（CSV或XML）显示sar生成的数据。
Sysstat：解释sysstat的各种作用。
nfsiostat-sysstat:统计NFS协议的网络文件系统的 I/O状态数据。
cifsiostat：统计CIFS协议的网络文件系统的 I/O状态数...
How to find whether or not a variable is empty in Bash
...g command tests if $var is empty:
if [[ -z "$var" ]]; then
# Do what you want
fi
The command man test is your friend.
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Android: Want to set custom fonts for whole application not runtime
Is it possible to set any custom font in every control of the application? And not necessarily runtime ? (i.e. from xml if possible or only once for whole application in JAVA file)
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switch / pattern matching idea
I've been looking at F# recently, and while I'm not likely to leap the fence any time soon, it definitely highlights some areas where C# (or library support) could make life easier.
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How can I monitor the thread count of a process on linux?
I would like to monitor the number of threads used by a specific process on Linux.
Is there an easy way to get this information without impacting the performance of the process?
...
Creating a dictionary from a csv file?
I am trying to create a dictionary from a csv file. The first column of the csv file contains unique keys and the second column contains values. Each row of the csv file represents a unique key, value pair within the dictionary. I tried to use the csv.DictReader and csv.DictWriter classes, but I...