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谈MongoDB读取连接超时的异常
今天在现场的哥们发来异常,让我解决,错误信息如下:HTTP Status 500 - Read operation to server 192.168.1.110:20001 failed on database wpdb; nested exception is com.mongodb.Mongo...
分类:数据库   时间:2014-09-18 20:16:04    阅读次数:330
Powershell profile.ps1 cannot be loaded because its operation is blocked by software restriction policies
Powershell profile.ps1 cannot be loaded because its operation is blocked by software restriction policies解决方法:修改注册表[HKEY_LOCAL_MACHINE\SOFTWARE\Wow643...
分类:其他好文   时间:2014-09-18 18:05:14    阅读次数:424
插入数据
我们可以通过以下几种方式向表中插入数据。分别是INSERT VALUES,INSERT SELECT,INSERT EXEC,SELECT INTO和BULK INSERT共五种方法。为了演示,我们先在数据库tempdb中创建表dbo.Orders,然后分别用这几种方法向表中插入数据,下面是示例.....
分类:其他好文   时间:2014-09-18 13:00:43    阅读次数:155
java.sql.SQLException: Couldn't perform the operation setAutoCommit
java.sql.SQLException: Couldn't perform the operation setAutoCommit: You can't perform any operations on this connection. It has been automatically cl...
分类:数据库   时间:2014-09-18 12:46:13    阅读次数:828
Method and apparatus for an atomic operation in a parallel computing environment
A method and apparatus for aatomicoperationis described. A method comprises receiving a first program unit in a parallel computing environment, the fi...
分类:移动开发   时间:2014-09-18 00:30:13    阅读次数:443
用函数指针实现的快速排序算法
K&R第五章介绍了用函数指针实现的快速排序算法,对其中的代码比较困惑,所以看了下《算法导论》上对快排的介绍,下面这张图说明了快排的原理及过程: 用C实现上面的过程: #include /* declare function pointer */ typedef int(*fp_operation)(int a, int b); void swap(int *a, int...
分类:其他好文   时间:2014-09-17 21:58:12    阅读次数:320
HDU 3397——Sequence operation(线段树,区间染色+区间异或+区间合并)
Sequence operation Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 6270    Accepted Submission(s): 1862 Problem Description lxhgww...
分类:其他好文   时间:2014-09-17 10:21:32    阅读次数:295
Codeforces Round #266 (Div. 2) D. Increase Sequence
Peter has a sequence of integers a1,?a2,?...,?an. Peter wants all numbers in the sequence to equal h. He can perform the operation of "adding one on the segment [l,?r]": add one to all elements of t...
分类:其他好文   时间:2014-09-16 14:18:20    阅读次数:259
11g添加asm
1.创建组2.创建grid用户3.用grid安装Gride Infrastructure软件4.执行root.sh[root@ora11g softdb]# /u01/app/11.2.0/grid/root.shPerforming root user operation for Oracle 1...
分类:其他好文   时间:2014-09-15 22:35:39    阅读次数:290
oracle数据库中的cursor
总共介绍两种游标一种高效使用游标cursor 、sys_refcursor、 bulk collect 1、cursor游标使用 [sql] view plain copy print ? /*简单cursor游标 *students表里面有name字段,你可以换做其他表测试 */ --定义 decl...
分类:数据库   时间:2014-09-15 19:57:19    阅读次数:323
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