Simple Query

It is well known that query optimization is an unavoidable topic in any database. For database engineers, optimization is the most challenging job. MySQL Open source database is no exception. In fact, the author believes that the database optimization is not as much as we imagine the suffering. 　　Under normal circumstances, you can start from the following four details to do a good job in the MySQL database query optimization. First, use the Explain keyword to evaluate the flaw in the query statement as shown in the following figure, now the author in the database to execute a simple select ...

The core concept of sub-library table is based on MySQL storage. Solving the problem of data storage and access capacity, the product supports the database traffic of previous Tmall double eleven singles day core transaction links, and gradually grew into the standard of Alibaba Group access relational database.

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall every webmaster in the process of doing a station will use some SEO query tools, Whether it is to analyze the competitor's website or other aspects of the site, or is used to query the site included, keyword ranking, outside the chain, links and other situations, with tools to assist the query, not only convenient, but also to all kinds of data ...

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Absrtact: We open the search engine, we can see the interface of the search engine is very simple, when the user input query words, search engine returned search results, the process seems simple, but some of the process behind it is very complex. User input every time we open the search engine, you can see the search engine interface is very simple, when the user input query words, search engine returned search results, the process seems simple, but some of the process behind it is very complex. Each word that the user enters hides behind quiet its deeper query intent, which often requires ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technology lobby Yahoo outside the chain of inquiry tool Close, many friends suffer from unable to query their own site outside the chain, Do not know how to query their own web site outside the chain, hehe here to recommend the central outside the chain inquiry tool, I hope that you seoer query outside the chain help Oh! The current domestic outside the chain of inquiry tools have been basically ineffective ...

Intermediary trading http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology lobby to do site SEO, the importance of the chain of the site beyond doubt." 　　It is because the chain of the site's SEO impact is very large, so Baidu Webmaster platform the latest announced by the Green Luo algorithm, will increase the illegal chain to deal with the crackdown. Formerly in the industry most commonly used is the Yahoo outside the chain inquiry tool, can inquire a website specific ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technology lobby Yahoo outside the chain of inquiry close, most of the webmaster will be this tool as an analysis of the powerful weapons of competitors, But after the shutdown so many webmasters do not know how to analyze competitors. 　　Recently Love station Network officially launched a Reverse chain query tool, small series will share the use of love-station back-chain tool experience, to see how accurate the tool. ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall makes the website the friend basically every day will use stationmaster tool, the inquiry Alexa rank, the PR value, the website includes hundreds of degree snapshot and so on, these website most basic information. Remember when I used to do Web site Alliance work, every day to audit 100 new to join the Alliance website. Because Alexa ranked low can not pass the Alliance audit, Alexa ranked high site, I will focus on follow-up. So the newly registered affiliate website, I will be one of the query Alexa rankings. ALEX ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technical Hall external links belong to SEO in very important link, 　　But a lot of seoer and not to the external links to subdivide the research and analysis, just blindly to carry out the external link construction, the following recommended a few I often use the external link query analysis tools, do Chinese SEO can pay attention to. 1. Yahoo tools ...