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PL/SQL Feed

Oracle PL/SQL (Procedural Language/Structured Query Language) resources, news, and support articles.

Consumer Reports guide on which fruits and veggies to always buy organic

First, I encourage everyone reading this (and beyond) to subscribe to Consumer Reports and make use of their unbiased, science-based reviews of products and services.

It is the best antidote to advertising you will ever find.

Consumer Reports guide on which fruits and veggies to always buy organic

First, I encourage everyone reading this (and beyond) to subscribe to Consumer Reports and make use of their unbiased, science-based reviews of products and services.

It is the best antidote to advertising you will ever find.

Use Student APEX

The following walks through how you sign on to a STUDENT Workspace with Oracle’s APEX product and write and run free-form SQL statements. You can find instructions on how to create your own STUDENT Workspace.

While this blog introduces several concepts and features of Oracle APEX, it only focuses on how to write and run free-form SQL statements. Overall, Oracle APEX is a valuable tool to learn and master.

Create APEX Workspace

In a prior post, I showed you how to access Oracle Database 11g XE APEX. This post shows you how to create a basic workspace against a student database (or, what Oracle lables a schema, which is synonymous with a database).

Oracle 11g XE APEX

The question for most new Oracle users is what’s Apex? They have a different question When they discover how to connect to the Oracle Database 11g XE default instance with this URL:

http://localhost:8080/apex

You’ll see the following web site, and wonder what do I enter for the Workspace, the Username, and the Password values?

LAMP PHP-GD Libraries

Everything seemed complete after configuring my standalone MySQL instance to a LAMP installation, but last night I started playing with the image files. It turns out that I failed to install the php-gd library.

There’s very little feedback when you try to troubleshoot why you can’t read an image. In fact, the error message for reading the BLOB from MySQL was only available on the local Firefox browser:

SQL puzzles: Which tree am I?

The following SQL statements are all clues to the names of trees:

MySQL bind-address

While I try to keep things simple, sometimes eliminating options and explanations comes back to haunt me. After posting how to open a Fedora firewall port for a LAMP stack, somebody got trapped by my instructions for installing MySQL on Fedora. They got stuck because they had the following setting in their my.cnf file:

Open Fedora Port 80

After installing the LAMP stack on Fedora, you need to open port 80 in the Firewall to access the PHP programs on the Fedora instance from external servers. You can open a firewall port by launching the firewall-config application as the root user with the following syntax:

Fedora Install LAMP

My students wanted an extra credit assignment, so I thought a LAMP configuration and test would be appropriate. The only problem was I hadn’t added it to their course VMware instance. So, here are the instructions to install Apache2, PHP, and MySQLi for a complete LAMP stack.

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