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the BestWordPress Hosting How to Easily Install WordPress RecommendedWordPress Plugins View all Guides WPBeginner»Blog»Tutorials»How to Fix the Error Establis…How to Fix the Error Establishing a Database Connection in WordPress Last updated on March 22nd, 2016 by Editorial Staff Share This Article 408 81 If error establishing a database connection wordpress you have been surfing the web for a while, you have at least seen this error establishing a database connection wordpress localhost error a few times. Error Establishing a Database Connection is one of those curses that could be caused by many reasons. As error establishing a database connection website a WordPress beginner, this could be awfully frustrating specially when it happened on its own without you changing anything. We ran into this issue yesterday on our own site. It took a little over 20 minutes to
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detect and fix the problem. While doing the research to find possible causes, we realized that there was no good article that covered everything. In this article, we will show you how to fix the error establishing a database connection in WordPress by compiling a list of solutions all in one place. Note: Before you make any database changes, make sure you have sufficient backups. Why do you get this error? Well in short, you what does error establishing a database connection mean are getting this error because WordPress is unable to establish a database connection. Now the reason why WordPress is unable to establish a database connection can vary. It could be that your database login credentials are wrong or have been changed. It could be that your database server is unresponsive. It could be that your database has been corrupted. In our experience, majority of the times this error happens because of some sort of server error however there could be other factors as well. Lets take a look at how to go about troubleshooting this problem. Does the problem occur for /wp-admin/ as well? First thing you should do is to make sure that you are getting the same error on both the front-end of the site, and the back-end of the site (wp-admin). If the error message is the same on both pages "Error establishing a database connection", then proceed onto the next step. If you are getting a different error on the wp-admin for instance something like "One or more database tables are unavailable. The database may need to be repaired", then you need to repair your database. You can do this by adding the following line in your wp-config.php file. Add it just before ‘That's all, stop editing! Happy blogging' line wp-config.php. define('WP_ALLOW_REPAIR', true); Once you have done that, y
Engel in Tips & Tricks | 76 comments It’s one of a website owner’s worst fears. You type in your error establishing a database connection cpanel website’s URL… but what greets you isn’t your familiar home page.
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Instead, it’s a blank screen. No matter what link you try, everything’s missing, except for the ominous words:
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“Error establishing a database connection.” The longer your website is down, the more traffic you’ll lose. And that could mean lost subscribers, lost customers, and ultimately lost revenue. But http://www.wpbeginner.com/wp-tutorials/how-to-fix-the-error-establishing-a-database-connection-in-wordpress/ what exactly does that error even mean? And more importantly, how can you fix it and get your website back to normal as soon as possible? In this article, we’ll go over exactly what the error message means and what could be causing it, and then I’ll walk you through some steps to troubleshooting and fixing the problem. (Want https://www.elegantthemes.com/blog/tips-tricks/how-to-fix-error-establishing-a-database-connection-in-wordpress to skip the analysis and start troubleshooting? Just click here to skip ahead.) What Does “Error Establishing a Database Connection” Mean? First, let’s take a look at how WordPress works to display your website, and it’ll become clear why this error is so devastating. The WordPress software is written using PHP and MySQL. Why two languages? Because all the information that makes up your website is stored in a MySQL database, and WordPress uses PHP to store and retrieve information from that database. Generally, whenever a page is loaded on your website, it’s built on-the-fly. PHP code is used to access your MySQL database and retrieve every bit of information needed to create the page. There’s a PHP query to access the post title, another to grab the author name, another to retrieve the publication date, and so on. Back to your error message: “Error establishing a database connection.” This means that for some reason the PHP code was unable to connect with your MySQL database to retrieve the information it needs to bui
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn http://stackoverflow.com/questions/7988734/no-database-selected-error-even-after-a-db-is-selected more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags https://www.python.org/dev/peps/pep-0249/ Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up “No database selected” error even after a db is selected up vote 4 down vote favorite I have selected the database but for some weird reason error establishing it still says that it is not selected. Connection lines: $location = "localhost"; $user = "user"; $pass = "pass"; //Database Selection $link = mysql_connect($location, $user, $pass); if (!$link) { die('Could not connect: ' . mysql_error()); } //Database Selection mysql_select_db('database') or die(mysql_error()); The Query: while ($row_fpages = mysql_fetch_array($result_fanpage)) { if ( $row_fpages['client'] == NULL ) { //GRAPHS $sql = "SELECT date, likes FROM statistics_pages WHERE idnum='".$_COOKIE['id']."' AND page_name = ".$row_fpages['page_name']." LIMIT 7"; $result_apps = mysql_query($sql) or die(mysql_error()); error establishing a And the error is a plain No database selected. I have never seen this error before and i tried to change a lot of things but its just not working. php mysql share|improve this question asked Nov 2 '11 at 23:45 Ricardo 65861333 add a comment| 6 Answers 6 active oldest votes up vote 5 down vote accepted You forgot to pass the variable $link as the link parameter. mysql_select_db('database', $link) or die(mysql_error()); EDIT: Try passing the database in the FROM parameter like SELECT * FROM `database`.`table` share|improve this answer edited Nov 3 '11 at 0:02 answered Nov 2 '11 at 23:50 David Bélanger 5,17511946 That would not be necessary. If there's no link specified the last link opened will be assumed. php.net/manual/en/function.mysql-select-db.php –Marcus Nov 2 '11 at 23:55 Oh yeah ? Didn't know... It's true. Thanks for the info ! –David Bélanger Nov 2 '11 at 23:56 I think Marcus is right but i decided to check this out anyway and it doesn't help. –Ricardo Nov 2 '11 at 23:57 Try my edit to see if this help –David Bélanger Nov 2 '11 at 23:58 SELECT command denied to user ''@'localhost' for table 'statistics_pages' it seriously looks like it doesn't recognize the connection lines... –Ricardo Nov 3 '11 at 0:03 | show 5 more co
Python Network ≡ Menu Search This Site GO A A Smaller Larger Reset Socialize Google+ Facebook Twitter Chat on IRC Sign In Sign Up / Register Sign In About Applications Quotes Getting Started Help Python Brochure Downloads All releases Source code Windows Mac OS X Other Platforms License Alternative Implementations Documentation Docs Audio/Visual Talks Beginner's Guide Developer's Guide FAQ Non-English Docs PEP Index Python Books Community Diversity IRC Mailing Lists Python Conferences Special Interest Groups Python Wiki Python Logo Merchandise Community Awards Success Stories Arts Business Education Engineering Government Scientific Software Development News Python News Community News PSF News PyCon News Events Python Events User Group Events Python Events Archive User Group Events Archive Submit an Event Python>>> Python Developer's Guide>>> PEP Index>>> PEP 249 -- Python Database API Specification v2.0 PEP 249 -- Python Database API Specification v2.0 PEP: 249 Title: Python Database API Specification v2.0 Author: mal at lemburg.com (Marc-André Lemburg) Discussions-To: db-sig at python.org Status: Final Type: Informational Created: Post-History: Replaces: 248 Contents Introduction Module Interface Constructors Globals Exceptions Connection Objects Connection methods Cursor Objects Cursor attributes Cursor methods Type Objects and Constructors Implementation Hints for Module Authors Optional DB API Extensions Optional Error Handling Extensions Optional Two-Phase Commit Extensions TPC Transaction IDs TPC Connection Methods Frequently Asked Questions Major Changes from Version 1.0 to Version 2.0 Open Issues Footnotes Acknowledgements Copyright Introduction This API has been defined to encourage similarity between the Python modules that are used to access databases. By doing this, we hope to achieve a consistency leading to more easily understood modules, code that is generally more portable across databases, and a broader reach of database connectivity from Python. Comments and questions about this specification may be directed to the SIG for Database Interfacing with Python . For more information on database interfacing with Python and available packages see the Database Topic Guide . This document describes the Pyt