2016年12月10日 星期六 --出埃及记 Exodus 21:5 "But if the servant declares, `I love my master and my wife and children and do not want to go free,'倘或奴仆明说,我爱我的主人和我的妻子儿女,不愿意自由出去.…
在Next_Key Lock算法中,不仅仅锁定住所找到的索引,而且还锁定住这些索引覆盖的范围.因此在这个范围内的插入都是不允许的.这样就避免了在这个范围内插入数据导致的幻读问题. delete from t1 where id = 10; 组合一:id列是主键,RC隔离级别 id = 10的记录加上X锁. 组合二:id列是二级唯一索引,RC隔离级别 若id列是unique列,其上有unique索引.那么SQL需要加两个X锁,一个对应于id unique索引上的id = 10的记录,另一把锁对应于…
Chinese Input ================= I use Wubu, so Fcitx, sudo add-apt-repository ppa:fcitx-team/nightly && sudo apt-get update sudo apt-get install fcitx-rime Python is auto , Begin with PhantomJS, use sudo. ==========================================…
问题描述: Details -Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV…
Jdstor第一部分后台设计,4-4上传图片. 3.4 Using Partials--3.4.4 Passing Local Variables You can also pass local variables into partials, making them even more powerful and flexible. show.html.erb: <%= render partial:"image", locals:{product:@product} %>…
安装了Windows 7 Service Pack 1 (SP1) 或 Windows Server 2008 R2 Service Pack 1 (SP1)都会遇到此错误提示. "Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadP…
B 整个表格其实是一些联通块,取反操作不能跨连通块.所以直接统计一下每个连通块内数字不对的个数是不是偶数即可 #include<iostream> #include<cstring> #include<cstdio> #include<algorithm> #define gt(x,y) ((x)*m+y) using namespace std; const int M = 1100000; int n,m,k,a[M],b[M],d[M],T,r,c,c…
Financial Management Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 164431 Accepted: 61085 Description Larry graduated this year and finally has a job. He's making a lot of money, but somehow never seems to have enough. Larry has deci…
