Mysql Procedure If Else

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Mysql increase the index of the three principles

First, the importance of the index The index is used to quickly find a column in a particular value of the line. Instead of using an index, MySQL must start with the first record and then read the entire table until it finds the relevant row. The larger the table, the more time it takes. If the table in the query column index, MySQL can quickly reach a location to search the middle of the data file, there is no need to see all the data. Note that if you need to access most of the rows, sequential reads are much faster since we avoid disk searches. If you use Xinhua Dictionary to find "Zhang" the Chinese characters, do not use the directory, then ...

PHP operation MySQL 3rd pass the third day

In this lesson, we want to learn how to increase the intelligent processing capacity of the Web page. Basic functions Welcome to the third and final lesson of this tutorial. If you've learned the first and second lessons, you've mastered the basics of installing and programming MySQL and PHP. Here are some of the other functions of PHP that might be useful to you and make your development process simpler.   First, let's look at the document. You should know some basic concepts of the header file, right? The header file is an external file whose contents are included in the main program. ...

Performance advantages of stored procedures and storage functions

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall about stored procedures, very many people are difficult to understand in addition to convenience, it also brings what. I used the machine at hand to do the following test.   Regardless of machine type, and table structure (in fact, the table structure similar to the inside of this post). DROP PROCEDURE IF EXISTS ...

PHP basic statements and functions and related Web site technology base

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall everyone may have their own server, at least there is a space or something, However, local debugging is often not less, speed and efficiency than to get the server to play faster and more convenient, there are many PHP platform to build packages, such as xampp,wamp,appserv,easyphp and so on ...

Experience sharing Novice Build station process general idea

Perhaps you have long ago dreamed of having a website of your own, perhaps you have been feeling to do a website that is "cattle" people do things. In fact, you can easily have a website of your own. Perhaps your heart is muttering: I do not understand anything, have not touched, want to do a website such a pure 0 basic reality? Perhaps you have a question, then please follow me slowly 1.1 points to understand. 1. What kind of website do you want to do first? What is the content of the website? Blindly do not know why to build a website, then this site affirmation ...

The website is never to be said goodbye by Black and false hackers

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall webmaster Friends, I am here to give you a happy year!" here today to talk about the site is hacked! First of all, I am not a hacker, but the knowledge of network security is a little more understanding. Generally speaking of their own hackers, are usually bragging fools, in fact, they do nothing.   I seriously despise here! ...

How to select Domain name, space and website program of quasi-stationmaster

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall so-called everything beginning difficult, this article is to be ready to do the website or just do the website novice webmaster and write,   Old birds fly directly, you can shoot bricks, the other is free, hehe. The first thing to consider is to build a website to do what kind of site, with the goal of what is good to start, a link to do what the site needs to ask someone else ...

Optimization Analysis: Sharing dream Building and background optimization settings

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall Dream Content Management System (DEDECMS) to simple, practical, open source and well-known, is the most well-known PHP open source Web site management system, but also the use of the most users of the PHP-like CMS system.   DEDECMS based on PHP+MYSQL technology development, support a variety of server platforms. Dream-weaving system with its stability, strong, easy-to-use and other features are more and more owners accepted. All know to learn SEO, although said not necessarily need to write programs, will develop a ...

Discussion on the running and development of university BBS

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall yesterday wrote a bold attempt article," A will be the head of the college entrance examination of a little experience " But the title editor to make a mistake, I have graduated from university for three years, in the university as a teacher, editor wrote I was a college entrance examination of the people. Oh, today to talk about the university Student Forum is what we often say BBS operation experience. Own operation ...

My opinion on the construction, development and popularization of local talent website

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall Everybody Good, today has the empty talk under the local talented person website development, the promotion aspect some experience skill, the writing dish, writes not good everybody to mention the opinion, thanks! In recent years, the rapid development of the Internet, China's internet users have hundreds of millions of, network recruitment gradually hot up. The birth of many large-scale national talent stations, such as: Zhaopin, Chinahr, 51job, and so on, these talent stations have grown, we personally do the national talent station is certainly not, so we can only subdivide this empty space ...

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