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This essay developed out of conversations I've had with several other programmers about why Java smelled suspicious. It's not a critique of Java!
Sycorax - complete tutorials
Programming Tutorials
" Java provides the industry - software companies and customer alike , an opportunity to create a true open computing environment where software is portable,
and customers benefit from increase competition. "
Java and the Future
December 1, 2008-LEJB 3.1: EJB New and Improved!
The EJB 3.0 specification was a huge improvement from what you were used to in the early versions of EJB. Available as an early draft, EJB 3.1 has many more features and is even easier to use.
December 1, 2008-Should Java Assert that Network I/O Can't Occur on the UI Thread?
Doing network I/O on the user interface (UI) thread is bad. Most developers know that and can tell you why; unfortunately, it's still done.
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PHP MySQL Tutorials
What is a Database?
A database is a structure that comes in two flavors: a flat database and a relational database. A relational database is much more oriented to the human mind and is often preferred over the gabble-de-gook flat database that are just stored on hard drives like a text file. MySQL is a relational database.
In a relational structured database there are tables that store data. The columns define which kinds of information will be stored in the table. An individual column must be created for each type of data you wish to store (i.e. Age, Weight, Height).
On the other hand, a row contains the actual values for these specified columns. Each row will have 1 value for each and every column. For example a table with columns (Name, Age, Weight-lbs) could have a row with the values (Bob, 65, 165). If all this relational database talk is too confusing, don't despair. We will talk about and show a few examples in the coming lessons.
Why Use a Database?
Databases are most useful when it comes to storing information that fits into logical categories. For example, say that you wanted to store information of all the employees in a company. With a database you can group different parts of your business into separate tables to help store your information logically. Example tables might be: Employees, Supervisors, and Customers. Each table would then contain columns specific to these three areas. To help store information related to each employee, the Employees table might have the following columns: Hire, Date, Position, Age, and Salary.
MySQL Command Line
If you are an old-school programmer that has no need for a graphical user interface, then you can simply use any command line interface to execute MySQL queries.
Those of you with MySQL installed on your Microsoft Windows operating system can reach the command line by going to the Start Menu and choosing "Run...". Type the keyword "cmd" into the text field and press Enter to launch Window's command line interface.
MySQL GUI
With so many free MySQL administration tools available, many developers favor these free Graphical User Interfaces over the command line. The most popular options include:
- phpMyAdmin - A popular web interface that is included with almost every type of Shared, Virtual or Dedicated hosting solution.
- MySQL Administrator - A powerful tool developed by the folks at MySQL.com .
- Navicat - A purchasable MySQL admin tool for Windows, Mac and Linux.