How can I further optimize a MYSQL table with 20 million data entries?

The data in a MYSQL table has reached 20 million entries. how can I further optimize the data in a MYSQL table? it has reached 20 million data records, and the query is very slow. I don't know how to improve it? The current method is to do a lot of

Phpmydamin creation indicates that the primary key and additional settings are missing. How can this problem be solved?

Phpmydamin creation indicates that the primary key and additional settings are missing. Questions such as questions, newbie, do not spray. My version is phpmyadmin3.3.9 ------ solution. I use both 2.11.6 and later. ------ Solution ------------------

PHP page. I want to display the parameter numbers in the IE address in base64_encode.

PHP page has some problems. I want to display the parameter numbers in the IE address in base64_encode. Page problems. Please take a look at it for me. the page www. vipcha. nethistoryindex. php is normal. But click the hyperlink in the list of this

Query, but the statement and connection are certainly not related.

PHPcode $ shop_qu & quot; select * fromphonewherep_id $ id & quot; mysql_select_db (htc, $ conn); $ shop_re1mysql_query ($ shop_qu ); [color # FF0000] query, but the statement and connection are certainly correct. PHP code

PHP deletes a specified character. How to solve

PHP deletes a specified character. PHPcode $ darray (0 & gt; array (a & gt; stringDays_3 (length6) B & gt; string3Days (length6) 1 & gt; array (a & gt; stringDays PHP deletes a specified character. PHP code $d = array( 0 => array( 'a' =>

Questions about page refresh

Questions about page refresh. & Lt; formmethod & quot; post & quot; action & quot; & gt; & lt; textarea & gt; & lt; form & gt; after the code above generates a webpage, enter a character in textarea. After refreshing in Firefox, the characters in

$ _ GET how to receive the data

$ _ GET how to receive the data, such as clicking a link to send data HTTP_HOST to link. php, and then link. php Redirects to the specified link based on the data. How to solve ------ solution ------------------ PHPcode & lt ;? Phpif (isset ($ _ GET

Questions about how to select and open a file

The question about how to select a file and open it is now to import the excel table data to the database, now you can complete the import of a fixed excel file. How can I select a file for import? after clicking "import", I open the local file

How to solve this problem

How can PHP handle a request url without a name File? for example, if user123 is followed by a request url, how can PHP handle it? If userxxx is used, please contact us !!! ------ Solution ------------------ this first relies on server url rewriting

Solve related problems in PHP

Solve problems encountered in PHP! 2012-04-1814: 22: 00 :( mod_fastcgi.c.2570) FastCGI-stderr: PHPNotice: Useofundefinedconstantpage-assumedpageinandaxinwebcommonpage.class.phponline9 to solve problems encountered in PHP! 2012-04-18 14: 22: 00: (mod_

What is the <symbol in php? how can this problem be solved?

& Lt; what is the symbol in php & lt; what is the symbol ------ solution ------------------ define the symbol echo & lt; & lt; EOTMynameis & quot; $ name & quot ;. iamprintingsome $ foo-& gt; foo. now, Iamprinti php Php ------ Solution --------

About how to use smarty to define absolute paths in <script

In & lt; script, smartty is used to define the root directory define (& quot; Path & quot;, dirname (_ FILE __). & quot;); Path (value:) D: xampphtdocsmytest template. the tpl file is located at D: xampphtdocsmytestsm. for the smarty definition, the

PHP regular expressions

PHP regular expressions have two links. you want to convert one of them into another HTMLcode, for example, link A: user.qzone.qq.com [color # FF0000] 1340477530 [color] #! App2 & amp; pos [color # FF0000] 1300412602 [color] link B: B. qzone. qq. c

How to deal with PHP templates

Which PHP templates can separate PHP code from HTML code. What are their advantages and disadvantages? ------ Solution ------------------ Smarty1. speed: programs written in Smarty can achieve maximum speed improvement, which is relative to other

PHP reading XML files

When PHP reads an XML file, it intercepts the following part: & nbsp; & lt ;? Php $ domnewDOMDocument; $ dom-& gt; load (& quot; Practice. xml & quot;); this line has an error & nbsp ;..... & nbsp ;..... & nbsp ;? & Gt; error message: & nbsp; an

Session and array conversion solution

Session and array conversion I set a two-dimensional array to a session. when the second session is obtained, the color session is restored to the previous two-dimensional array, at the same time, I want to insert the key-value pair to this

Question about new users of the smarty Template: the system prompts that undefined functions are found in the template.

New to the smarty Template: the system prompts you to find the undefined function template code in the Template: PHPcode {includefileheader. tpl} & lt; formname & quot; oform & quot; action & quot; index. php & quot; method & quot; post & quot;

How to solve the PHP software installation program?

Why does the PHP software installer only find 14.8 M online? Who will give it. What version is used now? --------Resolution ------------------www.xiazaiba.comhtml359.html PHP5.3.8 & nbsp; the php installation package is not very large ------

How does smarty view the version information?

How does smarty View version information ?? For example, I searched the internet and did not explain how to view the version number. thank you for your understanding... ------ Solution ------------------ do not know if Smarty provides a function for

Again, I asked why https and http can be accessed after apache is configured with ssl in linux 100 points.

This is why the master linux apache configures ssl and https and http are accessible. 100 points I have read a lot of information on the Internet due to limited level So I didn't understand it. Is it true that some web pages use https? if some web

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