PHP-Princess.net » So Much Data

Mysql: Comments in Fields

daynah — Wed, 09 Apr 2008 18:50:48 +0000

I never really noticed that you could create comments in your mySQL fields until now. My co-worker recently upgraded one of the web servers to have phpMyAdmin – 2.11.5.1, and the forms made the “comment” field more visible to me.

Below is a very basic table for “locations.” This simple table is for demonstration purposes only. ;)

Click on the image for a zoomed in view.

(See Pink Bubble) See how the fieldname is linked? That means there’s a comment about that field.

(See Blue Bubble) To create a comment, click on the pencil icon to edit the field. When you click on it, you should see a page that looks like this:

In the newest version of PHPmyAdmin, the form fields go downward instead of left to right. I like this way much better! Anyhow, just add in your comment (see the blue arrow) and hit save. Ta da, now you have comments in your mysql fields.

This is great when you work with more complex databases. And the developer that takes over your project will appreciate it. Of course, you can always use the “COMMENT” command in your msyql command statement, but isn’t this prettier? ;)

Go here for more information about the Information_Schema Columns.

Source:
phpMyAdmin is a great software that allows you to visually see your mysql databases.

FQL: Facebook Query Language

daynah — Mon, 26 Feb 2007 23:58:27 +0000

Introducing, FQL! What is FQL you may ask? FQL is a way to query the same Facebook data you can access through the other API functions, but with a SQL-style interface. In fact, many of the normal API calls are simple wrappers for FQL queries. All of the usual privacy checks are still applied. A typical query looks something like this:

SELECT name, pic FROM user WHERE uid=211031 OR uid=4801660

SQL Zoo

daynah — Fri, 08 Apr 2005 22:16:34 +0000

Interested in learning about databases? Try this great interative tutorial called SQL Zoo. Here, you can learn about: SQL Server, Oracle, MySQL, DB2, Mimer SQL, PostgreSQL and Access.

WordPress: Error 28

daynah — Fri, 18 Mar 2005 17:53:54 +0000

I got an Error 28 after posting on my WordPress blog yesterday. So I searched the Support forums to find out why. I found this helpful wiki page that showed me how I can avoid the Error 28.

“If you get this error, check all filesystems in which MySQL operates. If you followed recommendations to split datadir, tmpdir and log files into dedicated filesystems, more than one filesystem is involved. In addition, be aware that MySQL often creates temporary tables for some queries. Most of these are placed in tmpdir; however, some may be found in the database directory (e.g. ALTER TABLE). Also, ensure that sufficient free disk space is available for MySQL.”

If you get this error, running “repair table” in phpMyAdmin can fix it. Or just contact your host and let them know about the problem.