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中国的股市真真是看不懂了 - 杂谈 - 清泛网 - 专注C/C++及内核技术
中国的股市真真是看不懂了截止2015 7 9 13:30，沪深A股4股下跌，超半数股票停盘：其余：2812-1335-4=1473 只股票停盘（停盘占比52%）创业板涨停：历经一个多月的暴...截止2015/7/9 13:30，沪深A股4股下跌，超半数股票停盘：
其...
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
...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ORLACE
sqlplus /as sysdba
SQL> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES...
Linux日志切分工具：Logrotate - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e "man logrotate" for details
# rotate log files weekly
weekly
# keep 4 weeks worth of backlogs
rotate 4
# create new (empty) log files after rotating old ones
create
# uncomment this if you want your log files compressed
#compress
# RPM packages drop log rotation information into t...
Mac OS X 入门操作常见问题集锦（持续更新） - 更多技术 - 清泛网 - 专注C/...
...续更新）如何截图：shift + command + 3 截整屏shift + command + 4 截窗口（默认png，并保存到桌面）shift + command + Ctrl + 4 如何截图：
shift + command + 3 截整屏
shift + command + 4 截窗口（默认png，并保存到桌面）
shift + command + Ctrl + 4 ...
App Inventor 2 EV3超声波传感器教程 · App Inventor 2 中文网
...luetoothClient = 蓝牙客户端1
EV3超声波传感器1.SensorPort = "4" // EV3端口4
计时器_读取.TimerEnabled = true
}
}
读取超声波距离
连续读取
计时器_读取.TimerInterval = 200 // 200ms读取一次
when 计时器_...
How to merge remote changes at GitHub?
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edited Feb 8 '12 at 9:47
community wiki
2 r...
Where to place private methods in Ruby?
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answered Jun 20 '14 at 19:11
DennisDennis
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JSONP with ASP.NET Web API
I am working on creating a new set of services in ASP.MVC MVC 4 using the Web API. So far, it's great. I have created the service and gotten it to work, and now I am trying to consume it using JQuery. I can get back the JSON string using Fiddler, and it seems to be ok, but because the service exi...
How to get the unix timestamp in C#
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You get a unix timestamp in C# by using DateTime.UtcNow and subtracting the epoch time of 1970-0...
How can a LEFT OUTER JOIN return more records than exist in the left table?
...e additional information from a much bigger table. The left table contains 4935 records yet when I LEFT OUTER JOIN it to an additional table the record count is significantly larger.
...