relational database and non-relational database

1. Relational databaseRelational database refers to a database that uses a relational model to organize data.The relational model was first proposed by IBM researcher Dr. E.f.codd in 1970, and in the following decades, the concept of relational

SQL Fetch Size

JDBC performance tuning with optimal fetch sizeFebruary 1, CommentsTuning performance using fetch size is a old technique some of you might already are using this configuration; Some may know is not having implemented. Recently I has implemented in

DB2 database Common Basic Operations Command

Click Start menu-All Programs-->ibm-->db2-->db2copy1--> command-line tools--command WindowFirst, DB2 instance operation1, view the DB2 database version and installation directoryE:\Program Files (x86) \ibm\sqllib\bin>db2leveldb21085i instances "DB2"

"Algorithmic Learning Notes" 32. Calculate geometry to find the straight line with the most SJTU OJ 1350 across the desert

1350. Crossing the Desert descriptionPrincess Zelda has been taken away again. link in order to find her need to cross the Jaolanaro desert, the bad news is that link may not have enough strength to cross the desert, the good news is that the desert

Joomla Installation Graphics Tutorial (send Joomla Chinese language pack)

1, first download Joomla source programHome: http://www.joomla.org/download.htmlDownload: Download2, create a database for the forum. Enter the cpanel panel, select the Mysqldatabase option, create a new database (database name: Joomla), create a

Play MP3, MP4 files in WinForm

1. On the VS2012 Toolbox right---"select"-"COM Components" and "Windows Media Player" Tick on, then click OK.2. In the WinForm form, add two button buttons, one Windows Media Player, and the correspondingThe button code is as follows:Play Music

How to use the Ubuntu Online Account API to create a Weibo HTML5 app

In this article, we will use the online account API provided by the Ubuntu SDK to access the Weibo API and display what is needed. The focus of this article is to show how to use the Online account API. We will create a simple HTML 5 app. We finally

Character encoding Ascii,unicode and UTF-8 literacy

Today at noon, I suddenly want to understand the relationship between Unicode and UTF-8, so I began to search the Internet information.As a result, the problem was more complicated than I thought, and it was only after lunch that I saw 9 o'clock at

RTSP-RTP over TCP

Normally, RTSP provide streaming over UDP. By nature, UDP are a better choice as it provides robust streaming capability for media. However, it's unlikely to use UDP for streaming over the Internet.Typically, RTSP provides a UDP way to send RTP

The difference between close and shutdown closing the socket connection

close:int Close (int fd)Instead of closing the socket connection for FD immediately, the reference count for its file descriptor is reduced by 1,The connection is closed only if the reference count of FD is 0 o'clock, corresponding to the socket

Analyze how and what are the pros and cons of the SAP BYD system!

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/6C/63/wKiom1VIOe-h1qrxAADleGfKMzk025.jpg "style=" float: none; "title=" fm5r.jpg "alt=" Wkiom1vioe-h1qrxaadlegfkmzk025.jpg "/>2015 is the most important year of the cloud ERP solution,

Enterprise Hybrid Cloud Backup

Hybrid cloud, which combines public and private clouds, is the main mode and direction of cloud computing in recent years. We already know that private business owners, for security reasons, are more willing to store data in a private cloud, but at

Diagram of six UML class diagram relationships

In the process of learning UML class diagram, UML class diagram relation is a problem that must be mastered, and there are six kinds of relationships in UML definition: dependency, genus, association, implementation, aggregation and combination. The

Network Layer IP protocol header format with its four protocol (ARP,RARP,ICMP,IGMP)

IP protocol Header formatAddress Resolution Protocol ARPReverse Address Resolution Protocol RARPInter-network Control Message Protocol ICMPInternet Group Management Protocol IGMP IP Datagram HeaderIP Datagram Header format:The highest bit is

5 of the world's most cutting-edge email marketing tactics

Most brands use e-mail marketing as part of their overall marketing strategy. But in recent years, consumers have become more and more bored with the generic, one-size-fits-all promotional email, and if you do, then you need to update your tactics

Simple Digital Clock design

Summary of simple digital clock designIn the information age, the concept of time is deeply rooted, so mastering the design of digital clock has certain epoch significance, and using Multisim to design digital clock for discrete components can

Docker (ii): Docker command-line Quest

1. Docker command lineDocker is an interactive tutorial designed to help users master the use of Docker command lines in order to get a quick overview of Docker. But thanks to the rapid development of Docker technology, this interactive tutorial has

2.TCP/IP Protocol Analysis-IP Protocol, ARP protocol, and RARP protocol

The IP protocol is the most important protocol in the family of TCP/IP protocols, which provides unreliable, non-connected datagram transport services. So understanding IP protocols is critical to our learning network.IP headerImportant Field

Project Management Knowledge Framework Pmbok (text version)

Project Management Knowledge Framework PmbokOverall management of   project [I] (integration) 1. Develop the project charter (Develop project Charter) 2. Develop the project preliminary scope specification (Develop Preliminary project scope

direct-run-apk Apk Free Install direct start principle and implementation (i)

I think this should be a lot of people to discuss, I 13 years when the framework has been made, you can run 80% apk, but I am more lazy has not been to write a summary of some of these ideas, today to share with you,Similar Items

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