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service broker发送的消息不可达
1 Use HelloWorldDB 2 go 3 4 SET NOCOUNT ON 5 DECLARE @conversationHandle uniqueidentifier 6 7 Begin Transaction 8 -- 开始 Hello World 服务的对话 9 10 BEGI...
分类:其他好文   时间:2015-10-18 01:15:28    阅读次数:226
[LeetCode]31. Best Time to Buy and Sell Stock股票买卖
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
分类:其他好文   时间:2015-10-17 21:55:09    阅读次数:201
DBCC SQLPERF 用法
DBCC SQLPERF 有三种用途:Provides transaction log space usage statistics for all databases. In SQL Server it can also be used to reset wait and latch statis...
分类:数据库   时间:2015-10-16 18:41:15    阅读次数:245
linux服务器性能分析
top1时,看各个cpu是否均衡;看每个cpu的使用率分布是否合理看load average的负载(1分钟、5分钟、15分钟前到现在的平均值)看内存的使用看进程数运行、休眠数M看各个进程内存的占用iostat -x 1看cpu的iowait和idle。关键是r/s,w/s每秒的读写次数和量平均的数据...
分类:系统相关   时间:2015-10-15 18:32:18    阅读次数:358
What is a Statistic?
from:https://controls.engin.umich.edu/wiki/index.php/Basic_statistics:_mean,_median,_average,_standard_deviation,_z-scores,_and_p-value#Mean_and_Weigh...
分类:其他好文   时间:2015-10-15 12:46:00    阅读次数:205
关于分布式事务、两阶段提交、一阶段提交、Best Efforts 1PC模式和事务补偿机制的研究
本文原文连接:http://blog.csdn.net/bluishglc/article/details/7612811,转载请注明出处!1.XAXA是由X/Open组织提出的分布式事务的规范。XA规范主要定义了(全局)事务管理器(Transaction Manager)和(局部)资源管理器(Re...
分类:其他好文   时间:2015-10-15 09:58:33    阅读次数:139
LeetCode OJ:Best Time to Buy and Sell Stock(股票买卖的最佳时期)
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
分类:其他好文   时间:2015-10-14 23:33:12    阅读次数:219
121. Best Time to Buy and Sell Stock (Array)
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
分类:其他好文   时间:2015-10-14 19:54:39    阅读次数:148
linux添加系统负载日志
date >> /home/backupluc/monitor/loadavg.txttop -b -n 1 | grep Cpu >> /home/backupluc/monitor/loadavg.txttop -b -n 1 | grep average >> /home/backuplu.....
分类:系统相关   时间:2015-10-13 18:53:56    阅读次数:198
事务操作(BEGIN/COMMIT/ROLLBACK/SAVE TRANSACTION)
BEGIN TRANSACTION 标记一个显式本地事务的起始点。 BEGIN TRANSACTION 使 @@TRANCOUNT 按 1 递增。 BEGIN TRANSACTION 代表一点,由连接引用的数据在该点逻辑和物理上都一致的。 如果遇上错误,在 BEGIN TRANSACTION 之后的...
分类:其他好文   时间:2015-10-13 00:08:36    阅读次数:196
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