AWR中有 DB time这个术语,那么什么是DB time呢? Oracle10gR2 官方文档 给出了详细解释(Oracle10gPerformance Tuning Guide 5.1.1.2 Time Model Statistics) The most important of the t
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数据库 时间:
2016-02-02 16:45:50
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315
题目链接:http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=11358 【思路】 二分法+半平面交 二分与海边的的距离,由法向量可以得到平移后的各边,半平面交在特定精度判断是否有交集。 【代码】 1 #include<cmath>
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其他好文 时间:
2016-02-02 08:39:13
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192
python支持的数字类型:-整形(标准整形)、长整形、布尔型、双精度浮点型、十进制浮点型和复数 显式删除数字对象: >>> num=3 >>> print num 3 >>> del num >>> print num Traceback (most recent call last): File
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编程语言 时间:
2016-02-01 18:12:42
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151
npm install -g bower报错: $ npm install -g bower npm ERR! network getaddrinfo ENOTFOUND npm ERR! network This is most likely not a problem with npm itse
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其他好文 时间:
2016-02-01 17:49:27
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376
Our API directory now includes 96 stocks APIs. The newest is the Eurex VALUES API. The most popular, in terms of directory page views, is the Bloomber
Socket: CFSocket: Sockets are the most basic level of network communications. A socket acts in a similar manner to a telephone jack. It allows you to
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其他好文 时间:
2016-01-28 16:50:13
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172
用two pointers夹逼的方法,刚开始把left和right设置在数组的两端,如果left处比right处矮,那么说明left处是瓶颈,否则就是right处是。 同时维护一个全局的maxArea 1 public int maxArea(int[] height) { 2 if(height
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其他好文 时间:
2016-01-28 08:17:06
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126
Article 1:Loading Win32/64 DLLs "manually" without LoadLibrary() The most important steps of DLL loading are: Mapping or loading the DLL into memory.
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其他好文 时间:
2016-01-27 19:27:14
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转自:http://blog.sqlauthority.com/2010/05/14/sql-server-find-most-expensive-queries-using-dmv/ The title of this post is what I can express here for thi
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数据库 时间:
2016-01-27 19:23:39
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IdentifierAnidentifieris an arbitrarily long sequence of digits, underscores, lowercase and uppercase Latin letters, and most Unicode characters (disa...
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其他好文 时间:
2016-01-26 16:32:20
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282