Migrating a Subversion (SVN) repository

Migrating a Subversion (SVN) repository
Recently I have a brand new stand-alone server for my repositories and other minor thingies. And the challenging thing: moving the repositories from my home desktop computer to this server. My setup was this: I have my home desktop computer that runs Windows XP, and the repositories were stored and managed...

Why should we use PHP constants inside classes

Why should we use PHP constants inside classes
constant A constant is an identifier (name) for a simple value. As the name suggests, that value cannot change during the execution of the script (except for magic constants, which aren’t actually constants). A constant is case-sensitive by default. By convention, constant identifiers are always...

Unlocking (jailbreaking) your iPhone 3G (2.2.1)

Unlocking (jailbreaking) your iPhone 3G (2.2.1)
The background and “the why?” Apple has a very evolved sense of security and thus you won’t be able to install any application not listed in the AppStore. In order for you to be able to install WinterBoard (a replacement for that main menu), themes, sounds, ringtones, wallpapers and...

APC - Alternative PHP Cache

APC - Alternative PHP Cache
APC is a simple and yet powerful PHP extension that does just that: caching. What for? Suppose you would have some piece of code that fetches some data from a table, and since you don’t use JOIN because you loose scalability, you’ll have to do some more SELECTs, and then format each row to...

Difference between identifying and non identifying relationship

Difference between identifying and non identifying relationship
A 1:M (one to many) non-identifying means that the associated record in the -one- table is not a parent of the associated record in the -many- table, but rather just related. An example: an identifying 1:M would be a building which has many rooms. The -one- table carries data about the building .. e.g.,...