+---------------------------------------------------+| case where salary+---------------------------------------------------+| Low || Low || High || High || High || High |+---------------------------------------------------+6 rows in Set (0.00 sec)4.case [expr] when [value1] then [result] ... else [default] End Function:Mysql> Select Case salary when the "low" when the then ' mid ' else ' high ' End from salary;+----------------------------------------------------------------------+| Case salary
Part 2nd: In-depth recommendation of engine-related algorithms-collaborative filteringThe first article in this series provides an overview of the recommendation engine, and the following articles provide an in-depth introduction to the recommended engine's algorithms and help readers implement them efficiently. In today's recommended technology and algorithms, the most widely recognized and adopted is base
Mobile Game Development Attack and Defense-1. Game Engine selection and mobile game development Attack and Defense Engine
Now mobile games fire of a mess, engine is also endless in addition to leading the 3D market Unity3D, Duba 2D market Cocos2D-X, as well as illusory, Sphinx and so on, and even Sohu has developed a domestic Genesis-3D
This article first quotes a few words:
"To understand the user's intention, the need to return users." ”
"Portals are thinking about how to save money, not how to spend money to buy technology." ”
"Search engine is not everyone can do the field, enter the threshold is relatively high." ”
"It's not enough to be good, the best way is to make it to the extreme." "(Google Ten Truths)
"Do search engines need to focus on" "for a fourth-ranked business, port
Could you tell me whether the discuz template engine is easy to use or the smarty template engine is easy to use? now I want to create a private equity website for a customer. as per the customer's requirements, I have to write a program by myself.
If you want to separate templates and programs, I can see that only smarty and disucz are used more often on the Internet.
I have the following questions:
1. W
[1] DefinitionThe browser kernel is divided into two parts rendering engine and JS engine, because the JS engine becomes more and more independent, the kernel tends to refer to only the rendering engineThe rendering engine is a tool that parses an HTML document and displays it on a page[2] Common engineRendering
The rapid growth of information, so that search engines become the preferred tool for people to find information, Google, Baidu, China search and other large search engines have been the topic of discussion. With the increasing value of the search market, more and more companies to develop their own search engine, Alibaba's business opportunities search, 8848 of shopping search and so on, naturally, search engine
Tags: mysqlMySQL commonly used engines mainly have a few, Mrg_myisam, CSV, MYISAM, InnoDB, Memory, NDB, MYISAM, InnoDB is the most commonly used in MySQL storage engine, today mainly discusses InnoDB engine.First, what is the InnoDB engineThe InnoDB engine is another important storage engine for MySQL database, and is becoming the standard for all new releases of
1. modify the ENGINE (storage ENGINE) type of a single table (1) select one of the created PowerDesigner tables. The premise is that this table has been selected as a database of Mysql50. (2) right-click "attribute", (3) Select "PhsicalOption", double-click "type" (ISAM 1), and modify the ENGINE (storage ENGINE) type o
Java-based simple search engine and java Search Engine
Reprinted please indicate the source: http://blog.csdn.net/xiaojimanman/article/details/37956749
At school, the java teacher once said a Baidu interview question, which probably meant "there are unordered records and how to quickly find the records you want ". This is equivalent to a simple search engine. I
3D game engine design and implementation (3) After several days of writing, the 3D Game Engine architecture Code General architecture has been set up. The following is a description of each module: L loader engine/mm3dmain.exe L DLL Management module Engine/bin/mm3drun.dll L engine
Front-end engine preliminary design draft and engine preliminary design draft
The company is preparing to develop a project development platform LandaSugar, which is divided into three major parts: front-end engine, work engine, and Data Engine, developers only need to confi
[1] DefinitionThe browser kernel is divided into two parts rendering engine and JS engine, because the JS engine becomes more and more independent, the kernel tends to refer to only the rendering engineThe rendering engine is a tool that parses an HTML document and displays it on a page[2] Common engineRendering Engine
Machine search engine vs human flesh search engine Hu baojie published on 16:29:13
More and more attention has been paid to social search recently. The most terrible social search is human flesh search.
The human flesh search engine, I directly put it into Q A in social search, is actually asking a question in a community, A search mechanism in which a search
Author: dianqingyan
PrefaceIn the previous chapter, we used the easy-to-understand movie shooting process to get a rough idea of the game engine. I hope you can understand what the engine has. Just the next day I posted my post, a friend asked me, "What is the difference between a game framework and a game engine ?". At that time, I was blinded. in a twinkling of
My micro-workflow engine design and micro-workflow engine designI. Preface
When it comes to workflows, many people will think of OA. Indeed, OA is a typical workflow application, but workflow is not limited to OA. workflow should be regarded as a basic framework software, it is mainly used for process reengineering and optimization, and has a broad application field. There are a lot of excellent open-source
OVirt v3.4 began to support hosted Engine. What is hosted engine? Very simply, the previous management node was deployed on a physical machine, and now we deploy the management node to a virtual machine, and the virtual machine runs on the compute nodes in the Ovirt virtualized environment. Previously, the management node was deployed, the compute nodes were deployed, and the compute nodes were registered t
MySQL storage engine sorting and MySQL storage engine sorting01.MyISAMDefault storage engine before MySQL 5.0. MyISAM does not support transactions or foreign keys. Its advantage is that the access speed is fast, you can use this engine to create tables for applications that do not require transaction integrity or that
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