Articles tagged with “sql”
- WordPress Tip: Link Author Comments to the Home Page
- After almost three years of blogging here at Perishable Press, I had an epiphany about my author comment links. Way back when, after installing WordPress in a subdirectory called “/press/”, I decided to set the URL for my Administrative User Profile’s website as “http://perishablepress.com/press/”. After all, it seemed to make sense at the time, plus it really didn’t seem ...
- WordPress Tip: Disable Comments in Old Posts via PHP
- Just a quick WordPress snippet for future reference. I recently explained how to disable comments, pingbacks, and trackbacks via SQL. Here’s a good way to do it via PHP:...
- WordPress Tip: Update Email Address in the WordPress Database
- Several months ago, I changed my email address to stop spam. Since then, I have been updating every instance of my old address that I can find. In WordPress, I edited all of my theme files and updated my profile information in the “Users” admin area. Several days later while digging through the comments table in the WordPress database, I realized that the user-profile update is only pro-actively effective. There ...
- WordPress Tip: Remove Spam from the Comment Subscription Manager
- After investigating some unusual 404 errors the other day, I found myself digging through the WordPress Admin trying to locate the “Subscribe to Comments” options panel. As it turns out, administrative options for the Subscribe to Comments plugin are split into two different areas. First, the ...
- WordPress Discussion Management: Enable or Disable Comments and Pingbacks via SQL
- Continuing my quest to stop comment spam without using plugins, I have decided to disable comments on “old” posts. In my experience, over 90% of comment, trackback and pingback spam occurs on posts that have been online for over a ...
- Quickly Disable or Enable All WordPress Plugins via the Database
- Recently, while dealing with the dreaded white screen of death, I found myself unable to login to the WordPress Admin area to manually disable all of the plugins used here at Perishable Press. In the past, I have dealt with this situation by simply deleting all plugin files from the server, however this time, time was of the essence — I had only a few minutes with which to troubleshoot, diagnose, ...
- WordPress Tip: Reduce the Size of the WP-ShortStat Database Table
- In this article, I present a simple method for dramatically decreasing the size of your WordPress database by partially emptying old data from the WP-ShortStat table via the following SQL command:
DELETE FROM `wp_ss_stats` ORDER BY `id` ASC LIMIT n
That is the point of this entire article, which dips into just about everything one might need to know before employing such strategy. If you are familiar with SQL and understand the ...
- Fixing Mint after Switching Servers
- After switching Perishable Press to its current home at A Small Orange, I began noticing an unusual problem with referrer data displayed in Mint. Specifically, the first item recorded in the XXX Strong Mint data panel — for both “Most Recent” and “Repeat” views — displayed several thousand hits for various site resources, all from ...
- MySQL Magic: Find and Replace Data
- Recently, I needed to find and replace all instances of “http://website” in the wp_comments table of the WordPress database. Fortunately, SQL provides a simple way to find and replace data with its wonderful UPDATE function.
General Example
Using the SQL UPDATE command is straightforward. Here is the general syntax:
UPDATE table_name SET field_name = replace( field_name, 'string_to_find', 'string_to_replace' ) ;
Simply replace the table_name and both instances of field_name with ...
- Another Mystery Solved..
- Recently, after researching comment links for an upcoming article, I realized that my default values were being submitted as the URL for all comments left without associated website information. During the most recent site redesign, I made the mistake of doing this in comments.php:
...
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Notice the value="[website]" attribute? It seemed like a good idea at the time — I even threw in a ...
- Time Test
- This post exists entirely for the sake of tweaking time functionality in Apache, PHP, SQL, and WordPress..
Immediate findings:
Date/time limit into the past for WordPress: December 13, 1901 @ 15:45
WordPress will display December 13, 1901 @ 15:45 properly for all functions except wp_get_archives
All dates prior to 12/13/1901 in MySQL will display as December 31, 1969 @ 19:00 in the WP Admin > Post Timestamp panel
SQL timestamps of 0000-00-00 00:00:00 display as 0 via $wpdb->get_col("SELECT DISTINCT YEAR
SQL timestamps of ...
- Backup that Database with phpMyAdmin
- DB Export Settings Backing up your database as often as possible is essential. For WordPress, as well as for other applications, plugins and other scripts that help automate the task are easily obtainable. However, for several reasons, it is a good idea to understand the process of manually creating a backup copy of your database. This brief tutorial1 should help cement the process ...