historical person

RDS for MySQL Archives historical data by partition Original table Partition Stored procedures for partition maintenance Events that call a stored procedure every month with the accumulation of data and the increase of data volume, more and more table volume becomes large, not only affect the execution time of query, but also make management work (such as adding and deleting index) become more complex and difficult.This article descr

Many times, when we plan for the space of the SQL Server database, or to the storage space, we need to estimate the size of the required database space, the simplest way to estimate the future is to look at the past trends, which is often the most reasonable way. Generally speaking, a good operational database requires a regular baseline (baseline) and a baseline to know what is normal. A simple example for example, some people's blood pressure is usually low, so 80 of the low pressure is not n

The historical background of "1" MTK debutIf the 1960 is the era of mainframe (Mainframe) , the 1970 's is the era of minicomputer (microcomputer) , then the 1980 is undoubtedly the era of personal computers (PC), And the 1990 's is the era of the Internet. What about after 2000? Perhaps the era of mobile internet.Similar to the development of the computer, the development of the mobile Internet, it seems to be the same as the hardware improvement as

Method for clearing historical records, SQLSERVER history Back up data before deletion. When using SQL Server to log on to the database, the logged-on records will appear in the logon box. The following is the deletion method: SQL Server 2008Delete the drive letter \ Documents and Settings \ User \ Application Data \ Microsoft SQL Server \ 100 \ Tools \ Shell \ SqlStudio. bin. \Or: running the database directlyIn the address bar of win7, enter the fol

Windows forfiles (delete historical files) and Windows forfilesIntroduction Forfiles is a batch DELETE command that comes with windows. It is a good option to determine the time by modifying the date attribute of the file itself and use it to delete historical files. Syntax Forfiles [/p Path] [/m SearchMask] [/s] [/c Command] [/d [{+ |-}] [{MM/DD/YYYY | DD}] [/P Path]: Specifies the Path. Of course, you c

Due to improper permission control of the Tang Dynasty scanner, you can view some historical vulnerability details. Due to improper permission control of the Tang Dynasty scanner, you can view some historical vulnerability details. Search Baidu directly.Site: tangscan.comExample address Found Http://tangscan.com/auth/p8SY0%252B8RdM3f8BvcwAIbsoEnFRi75%252BY%252Feq6tfDCeIoOpPKu38prYhttp://tangscan.com/auth

HTTP protocol is the basic protocol of the internet, but also the necessary knowledge of Web development, the latest version of HTTP/2 is to let it become a technical hotspot.This paper introduces the historical evolution and design ideas of HTTP Protocol.first, http/0.9HTTP is an Application-layer protocol based on the TCP/IP Protocol. It does not involve packet (packet) transmission, mainly specifies the communication format between the client and t

JavaScript Documentvar bookcate=new Array ();Bookcate[0]= "Book_history";Bookcate[1]= "book_family";Bookcate[2]= "Book_culture";Bookcate[3]= "Book_novel";var bookclass=new Array ();Bookclass[0]= "History";bookclass[1]= "Family";bookclass[2]= "Culture";Bookclass[3]= "novel";function bookputup(elementid) {for (Var i=0;iif (elementid==i) {document.getElementById (Bookcate[i]). Classname= "Book_show";document.getElementById (Bookclass[i]). Classname= "Book_type_out";}else{document.getElementById (Bo

The history command is saved in the user's home directory ~/.bash_history after the user logs offHistory #查看系统中 the historical command for real-time caching , not exactly the same as the content in. bash_historyHistory-c #清空历史命令History-w #把缓存中的历史命令写入历史命令保存文件. bash_historyThe storage capacity of historical commands can be changed in/etc/profile by adding histsize=1000.Invocation of the history command:Use th

To download the historical version of the JDK: Http://jingyan.baidu.com/article/9989c746064d46f648ecfe9a.html2. Download the JDK and pass it to the root directory.3. Create a directory and place the JDK extract fileThere are two ways to install JDK in a Linux environment, one for RPM installation and the other for source code (compiled)As a result, two installation files are available on the Oracle website, one in RPM format and the other in GZ

[. Net you must know] 3: Historical entanglement: Characteristics and attributes Author: anytao This article introduces the following: • Basic Concepts and usage of custom features • Comparison of properties and features • A Brief Introduction to reflection 1. Introduction Attribute is a technical highlight introduced by the. NET Framework. Therefore, it is necessary to take some time to understand the content of this article and enter

Menus with historical information Instance description In some software, you can record opened file information in the menu bar to make operations simple and convenient. When you want to open a file that has been opened, you do not need to repeat the search. You only need to select the file that has been opened in the menu to open the file. Run this example, as shown in figure 1. Figure 1 menus with

Receives files through Bluetooth and opens the file from the historical transmission record. You cannot select an appropriate application automatically.However, to open the new received file from File Manager, you can select the corresponding application (such as video playerto open the .3gp).mp4 file)The download file is opened in the historical transmission record. The MIME type passed by the recipient wh

First, historical ReviewWith the rapid development of science and technology, has now entered the 4G era, 5G era is about to open. The Android version is fast and is now in its 6.0 version. Occasionally can be seen, mobile phones endanger the current crowd of life, such as staying up late to see the phone will be deeply hurt the eyes, working family on the way down the party, party dinner outside only the mobile phone party. There are some situations,

iOS is Apple's mobile operating system, which is used in Iphone,ipad,ipod, originally Cisco's network device operating system, which is then licensed for use by Apple. The features of the historical version are described below.　　IOS1　　The biggest feature is the touchscreen feature unmatched by other phones, making pinch-and-zoom and chronic scrolling almost perfect. This makes the app's experience more natural and instant.Cons: 1. Copy/paste text is n

Wen/timhbw (author of Jane's book)Original link: http://www.jianshu.com/p/edfed1b1822cCopyright belongs to the author, please contact the author to obtain authorization, and Mark "book author".1. Software Preparation "Essentials" Charles4.0.1 Download Password: jfnk "No need, with Charles better to eat" Paw2.3.1 download password: t3my 2. Official start 2.1 Open Charles Blue and white porcelain2.2 Install certificate to intercept resolution of HTTPS request data2.2.1 If you cho

1. Import functionsImport NumPy as NP Import Pandas as PD Import Matplotlib.pyplot as Plt Import Tushare as TS Import Math2. Data acquisitiondata = Ts.get_hist_data ('000012', start='2015-06-23', end= ' 2017-11-16 ')3. Moving Average# Use of scrolling windowsdata[' 42d ']= pd.rolling_mean (data[' close '],window=42)data[' 252d ' =pd.rolling_mean (data[' close '],window=252)Print (data[[' close ', ' 42d ', ' 252d ']].tail ())data[[' close ', ' 42d ', ' 252d ']].plot (figsize= (8,5))Plt.show ()4.

　　The study of historical knowledge is very important to us. Because history is always strikingly similar, learning history can be wise for us.Now the network is very popular, many people through the network to acquire knowledge. GIS can represent data in the form of maps, can manage spatial data, can query and spatial analysis, consider the combination of history and GIS technology, and build a "historical

My first blog, hahaha, record my python's way to the next step!Today, I wrote a simple reptile.Using Python's requests and beautifulsoup modules, Python 2.7.12 can use PIP for module installation directly on the command line. The core of the crawler is to use BeautifulSoup's SELECT statement to obtain the required information.install requestspip install bs4Take Wuhan 2017 5 ~ July history as an example crawl historical weather data of Wuhan in the wea

Eclipse each time an editable file is saved in the Workbench, the Workbench updates the local history file and logs changes. The local history of the file can be accessed and the previously saved copy file can be restored as long as the required state is recent in the Save history. Let me show you how to do local code recovery. When we use eclipse to encode, we may have done something wrong to cause the code to be lost. So it's important to restore the code to a