metasearch engines

If "#skip-innodb" appears, remove the "#" and restart MySQL; If the first one cannot be resolved, add the configuration: Default-storage-engine=innodb and then restart MySQL. Access MySQL data according to Mysql>show engines; Transfer from Baidu Experience: http://jingyan.baidu.com/article/3a2f7c2e68ac4426afd61108.htmlThanks to Baidu ExperienceTransaction processing data1PHP2 Try{3$pdo =NewPDO ("mysql:host=xxxx;dbname=xxxx","xxxx","xxxx")

more frequent scenes, such as: Bbs,sns, Weibo, and so on.4, data consistency requires a higher business, such as: Recharge the transfer, bank card transfer.5, the hardware device memory is large, can take advantage of InnoDB better cache capacity to improve memory utilization, reduce disk IO as much as possible.Shared tablespace corresponds to physical data fileSeparate table spaces correspond to physical data files6, compared to myisam,innodb more consumption of resources, speed is not MyISAM

Index), pre-read (read ahead).(1) Mvcc:multi-version Concurrency control multiple version concurrency controls. Most MySQL transactional storage engines, such as InnoDB and Falcon, do not use a simple row-locking mechanism, but are used with MVCC. MVCC not only in MySQL, but also in Oracle and PostgreSQL, the use of MVCC.MVCC saves a snapshot of the data at a point in time, which means that transactions can be viewed as a consistent view of the data,

The introduction of four kinds of engines commonly used by MySQL(1): MyISAM Storage Engine:Does not support transactions, and foreign keys are not supported, the advantage is that access is fast, the transaction integrity is not required or Select,insert-based applications can basically use this engine to create a tableSupport 3 different storage formats: static table; dynamic table; Compact tableStatic tables: The fields in the table are non-variable

. Therefore, vertical search is not just a simple industry google. Users use google, baidu, and other general search engines by keyword. Semantic search results tend to produce knowledge, such as articles, papers, and news; vertical Search also provides keywords for search, but is placed in the context of an industry knowledge, the returned results tend to be information, messages, entries, and so on. He told the House buyers that he wanted to find di

first 2 floors of a large authoritative catalogue such as Yahoo! and Google are invaluable. Note: Do not improve your site rankings through link farm: Google will punish those who actively link to link farm site to improve their ranking site, the corresponding site will not be revenue to the index of the page. But you don't have to worry if your page is farm by another link, because this passive link is not going to be punished. Do not skimp on links to other sites: If a page has only a large n

search "star test" this keyword you will see the first page is basically spent to promote, the word heat is generally visible. Again, if you are in Baidu, Google search "Xingjikao" This whole spell, you will find the same "star test" content, which means that the search engine to the whole of the understanding of the corresponding Chinese characters, the same is done "star test" this keyword, if my domain name itself is the keyword, So everyone said I have no advantage? hehe, the answer is yes

With the rise and fall of the Internet, search engine also experienced 10 years of ups and downs, it is how to become the Internet in the future an important point of growth? Who has got the "four barrels of gold" of the internet? 　　 1995-Directory Search prevalence On a simple home page, in the Keyword input box to enter the content to find, we immediately get the relevant information, this is the search engine that we are now used to. But ten years ago, when the first generation of search

Let's introduce two things today, Site and Filetype.Site Site believe that many people know, you can limit SEO search engine domain name range, you can simply say that in-site search, usage: site:111cn.net keywordKey word site:111cn.netSite:111cn.net Many of the sites included in the site to use as a site search, if you want to search a site but did not find the search box can be used this method. Filetype I do not know if you have been on the Internet to search for PPT, anyway,

To learn SEO, then we start from the most basic search engine grammar, following the collation of Baidu, Yahoo, Google three search engines for advanced syntax and application. Baidu Search Advanced Syntax 1, limit the search scope to the title of the page--intitle The page title is usually a sketchy of the content of the Web page. Limiting the scope of the query content to the title of the page can sometimes achieve good results. The use of the me

links to lure spiders, we should pay attention to the reasonable use of the elements of the web design, so that the search engine smoothly crawl your Web page and content. Finally, the search engine refining: Our Web page contains pictures, contains text, but also contains a lot of other files, search engines do not crawl unrelated files, will only crawl text content. So the HTML code needs to be optimized to allow the search engine to extract the m

How to let Baidu included in our article? To rely on spiders crawling, how to let Baidu snapshot update? To rely on spiders crawling, how to let search engines know your site? Spiders need to crawl, so that when we do SEO promotion, spiders are ubiquitous, if said spiders like your site, then I will congratulate you, Because your information has been spider brought to the server, and included, if the spider to you are very annoying, then I will be war

functions, used to write a piece of HTML code directly to the page, and is still widely used today. Early search engines supported this approach, but the approach was largely limited to character matching, which only supported the most straightforward way of writing a JavaScript string, and was powerless for slightly more complex text stitching. But for JavaScript parsing, this code is to conform to the language specification, so you can do full supp

incident, Baidu has been unstable situation. In fact, in the 5.20 incident someone had already released the message in the seowhy in advance. What do these phenomena indicate? The site and Domian mentioned above will occur when the search error, these errors must be Baidu algorithm is not perfect, has not happened before now. There is also a phenomenon, this collection of violence and reduction, I would like to ask everyone ranked in this time there is a surge of violence? That was one months a