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How to version control a record in a database
...e change in a second (i.e. do not put RevisionDate into the primary key).
Now, every time you update FOO, just before you do the update you insert the old values into FOO_HISTORY. You do this at some fundamental level in your design so that programmers can't accidentally miss this step.
If you wa...
@synthesize vs @dynamic, what are the differences?
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I was getting NSUnknownKeyException errors with my dynamic property when I removed the @synthesize line (Xcode 3.2 was giving me an error b/c I had no matching ivar for my @property). Adding @dynamic fixed the issue - compiles and runs fine no...
How do I remove  from the beginning of a file?
... BOM in ISO-8859-1. You have to tell your editor to not use BOMs or use a different editor to strip them out.
To automatize the BOM's removal you can use awk as shown in this question.
As another answer says, the best would be for PHP to actually interpret the BOM correctly, for that you can use m...
How to force NSLocalizedString to use a specific language
...ge of the iPhone.
Is it possible to force NSLocalizedString to use a specific language to have the app
in a different language than the device ?
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Why can I throw null in Java? [duplicate]
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@bharal: It might not be possible to know at compile time. In the exact case of throw null, it is, but in a more general case where the exception object is decided upon at runtime, there may be no way to know. Evidently the addition (to the JLS) of a special case...
Cell spacing in UICollectionView
How do I set cell spacing in a section of UICollectionView ? I know there is a property minimumInteritemSpacing I have set it to 5.0 still the spacing is not appearing 5.0. I have implemented the flowout delegate method.
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Maven dependency for Servlet 3.0 API?
...ption?
The maven repository from Java.net indeed offers the following artifact for the WebProfile:
<repositories>
<repository>
<id>java.net2</id>
<name>Repository hosting the jee6 artifacts</name>
<url>http://download.java.net/maven/2</ur...
Is System.nanoTime() completely useless?
...s System.nanoTime() returns the time value using a CPU specific counter. Now consider the following case I use to measure time of a call:
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How to draw a line in android
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if i want add a line in some other activity like R.layout.main How can i add?
– mohan
Sep 1 '10 at 13:42
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find -exec with multiple commands
... find -exec with multiple commands without any success. Does anybody know if commands such as the following are possible?
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