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删除数据
我们有两种方式删除数据,DELETE语句和TRUNCATE语句。需要注意它们的区别,DELETE语句是以完整模式记录日志的,所以它的性能相对较低。而TRUNCATE语句是以最小模式来记录日志的,并且它会重置标识种子。下面是示例代码。USE tempdb;GO-- 准备测试数据IF OBJECT_.....
分类:其他好文   时间:2014-09-18 13:00:03    阅读次数:143
Exercise 1.15 sine
题目: The sine of an angle (specified in radians) can be computed by making use of the approximation sin x ? x if x is sufficiently small, and the trig....
分类:其他好文   时间:2014-09-18 12:52:03    阅读次数:132
收缩sql server2008 数据库
USE DATABASENAME;GO-- Truncate the log by changing the database recovery model to SIMPLE.ALTER DATABASE DATABASENAME SET RECOVERY SIMPLE;GO-- Shrink t...
分类:数据库   时间:2014-09-18 11:14:53    阅读次数:197
Colidity-- MaxDoubleSliceSum
左右两次遍历,记录以当前元素结尾的左边最大字串和以及右边最大字串和,最后遍历,相加 1 // you can also use includes, for example: 2 // #include 3 #include 4 #include 5 int solution(vector &A...
分类:其他好文   时间:2014-09-18 11:10:43    阅读次数:197
Sparse Autoencoder(一)
Neural NetworksWe will use the following diagram to denote a single neuron:This "neuron" is a computational unit that takes as input x1,x2,x3 (and a +...
分类:其他好文   时间:2014-09-18 11:05:43    阅读次数:418
[翻译] JSAnimatedImagesView
JSAnimatedImagesView本人测试的效果:Description:描述Easy to use UIView subclass to quickly add a cool animated carrousel of pictures to your app.Documentation:h...
分类:Web程序   时间:2014-09-18 11:00:53    阅读次数:370
编译ipvsadm-1.26 错误:collect2: ld returned 1 exit status
编译:ipvsadm-1.26编译错误问题[root@SquidMaster241ipvsadm-1.26]#make make-Clibipvs make[1]:Enteringdirectory`/root/ipvsadm-1.26/libipvs‘ gcc-Wall-Wunused-Wstrict-prototypes-g-fPIC-DLIBIPVS_USE_NL-DHAVE_NET_IP_VS_H-c-olibipvs.olibipvs.c gcc-Wall-Wunused-..
分类:其他好文   时间:2014-09-18 09:53:14    阅读次数:421
linux/centos6.5 network提示Determining if ip address * is already in use for device eth0
系统:centos6.5今天,在重启网卡的时候发现了如下的问题[root@localhost~]#servicenetworkrestart正在关闭接口eth0:[确定]关闭环回接口:[确定]弹出环回接口:[确定]弹出界面eth0:Determiningifipaddress192.168.100.201isalreadyinusefordeviceeth0...[确定]开始以为是IP地..
分类:Web程序   时间:2014-09-18 03:16:43    阅读次数:360
Learn Python From 'Head First Python' [3](2) : Pickle
1.the use of 'with open... as ...'2.the use of pickle(dump and load)for Step1:the 'with open ... as...' is the short format of 'try...except...finally...
分类:编程语言   时间:2014-09-17 23:13:52    阅读次数:259
simple factory, factory method, abstract factory
simple factorygood:1 devide implementation and initialization2 use config file can make system more flexible (reflection)bad:1 all initialization work...
分类:其他好文   时间:2014-09-17 20:25:32    阅读次数:246
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