系统sql问题

云主机windows2008 系统装sql2000 问题

云主机windows2008 系统不能装sql2000 谁有办法解决啊！

今天照例简单检查了系统的情况，发现在客户的服务器在下午的3-5点这个时间段，数据库负载略有上升，但是幅度不大，因为生产的awr抓取频率是10分钟，所以还是能够通过awr分析出一些问题。负载情况如下：抓取了一个最新时间段的awr报告。查看...

一条执行4秒的sql语句导致的系统问题

一般来说一条sql语句执行个4秒钟是可以接受的，没有什么问题，但是如果应该执行1秒，却执行了4秒，问题就挺大的了。今天查看数据库负载，发现在中午12:00 到1点之间，数据库的负载急剧增加，负载达到了百倍。Snap Id Snap Time Sessions ...

由一条sql语句导致的系统IO问题

照例进行了简单的检查，发现系统负载不高，就开始计划一些sql tuning的工作，但是过了一会,在通过shell命令查找一些sql信息的时候，发现系统的反应有些慢，当时也没在意，当我查看v$session都开始慢的时候，感觉哪里出了什么问题了，最直观...

使用阿里云ECS2003标准版无法安装SQL2005系统的问题

问题描述：在安装mssql2005时,安装CD1顺利完成,在安装CD2时无法进行,双击安装文件后自动关闭,无提示!怎么解决?下面是阿里云工程师对我们这个提问的回复，结贴了，大家以后不要在讨论了。售后工程师：您好，从如下微软官方SQL Server安装...

见微知著：一条 SQL 性能问题引发的核心系统悲剧

第一篇为：性能为王：SQL标量子查询的优化案例分析第二篇为：SQL审核：OR展开与子查询优化案例详解本篇为系列案例之三：IN子查询返回结果集很小这是不久前在一个客户现场遇到的一条 SQL 性能问题，此 SQL 子查询结果集返回最多10行，...

一条执行4秒的sql语句导致的系统问题(转)

发现系统的负载情况确实很严重，每秒的redo有1.6M,可见系统的负载不是主要在select上，可能有一些dml之类的操作极为频繁。看了下等待事件。都是关于lock的。这个时候就有些纳闷了。到底什么样的操作会导致严重的锁等待。Top 5 Timed ...

机房收费系统：（三）SQLSever中自增长ID问题

在本次机房收费系统中，数据库的用户增加过程中需要将每个增加的用户给一个自增长的序列号，这就考虑到数据库和VB的交互过程，甚至我们会遇到在写数据库程序的时候,经常会需要获取某个表中的最大序号数，查询资料找了几个方法，解决问题。...

SQL：一个留言板小系统。主外键关系的确定问题

请问：用户留言表和留言分类表的主外键关系怎么确定？

关于用才C＋＋和SQL Server开发一个信息管理系统的问题

问题描述：我想自己写一个用C++做前台（简单vc界面做数据输入和查询），SQL做后台的信息管理系统的小软件，以前没接触过这方面的东西，纯菜鸟；麻烦推荐这方面有用的书；是不是用vc和SQL Server两个软件在Windows下就可以完成开发了？是否...

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云数据库RDS SQL Server版

云数据库SQL Server，具有企业许可授权，权限更为开放，引擎功能更为强大。能完美支持Windows平台的.NET架构，支持复杂SQL查询，性能优秀，并有强大的可视化管理工具，帮助您轻松管理数据。

产品详情

管理控制台

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