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mysql中key 、primary key 、unique key 与index区别
一、key与primary key区别CREATE TABLE wh_logrecord (logrecord_id int(11) NOT NULL auto_increment,user_name varchar(100) default NULL,operation_time datetime...
分类:数据库   时间:2014-09-21 00:08:09    阅读次数:311
SQL Error 1227: Access denied; you need the SUPER privilege for this operation
今天同事跟我说,他之前在mysql上建的视图没办法更改,更改的时候报如下错误:SQLError1227:Accessdenied;youneedtheSUPERprivilegeforthisoperation起初,我以为是权限的问题,查了半天,权限明明是有的,新增了如下两条授权条件,还是不行:grant操作MySQL视图、查看视图源代..
分类:数据库   时间:2014-09-19 19:33:26    阅读次数:295
AIX weblogic 启动报There is not enough buffer space
AIX weblogic 启动报There is not enough buffer space for the requested socket operation 错误 ???? <Sep 19, 2014 10:27:09 AM GMT+08:00> <Error> <Coherence> <BEA-000000> <Oracle Coherence 3.6.0.4 ...
分类:Web程序   时间:2014-09-19 12:19:05    阅读次数:305
testdb11b root.sh执行结果
[root@testdb11b dev]# /u01/app/11.2.0/grid/root.sh Performing root user operation for Oracle 11g The following environment variables are set as: OR...
分类:数据库   时间:2014-09-19 02:16:54    阅读次数:243
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
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
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