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Why does Oracle 9i treat an empty string as NULL?

..., ' ' is not the same as NULL -- one is a valid datum, and the other is indicating the absence of that same information. ...
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How do I change bash history completion to complete what's already on the line?

...nths ago that made my bash history auto-complete on what's already on the line when pressing the up arrow: 5 Answers ...
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UTF-8 byte[] to String

Let's suppose I have just used a BufferedInputStream to read the bytes of a UTF-8 encoded text file into a byte array. I know that I can use the following routine to convert the bytes to a string, but is there a more efficient/smarter way of doing this than just iterating through the bytes and con...
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Reading a key from the Web.Config using ConfigurationManager

I am trying to read the keys from the Web.config file in a different layer than the web layer (Same solution) 10 Answers ...
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How do I create a list of random numbers without duplicates?

I tried using random.randint(0, 100) , but some numbers were the same. Is there a method/module to create a list unique random numbers? ...
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How do I get a list of all subdomains of a domain? [closed]

I want to find out all the subdomains of a given domain. I found a hint which tells me to dig the authoritative Nameserver with the following option: ...
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autolayout - make height of view relative to half superview height

have been getting into autolayouts recently and I'm stuck on what seems like a really trivial problem example. I have a view that I want to sit at the top of the screen, and take up half of the screen-height. Simple before autolayout - just tack it in place and tell it to expand vertically when the ...
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Replace first occurrence of pattern in a string [duplicate]

Let's say I have the string: 3 Answers 3 ...
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How to read a line from the console in C?

What is the simplest way to read a full line in a C console program The text entered might have a variable length and we can't make any assumption about its content. ...
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Failed to load resource under Chrome

There is a bunch of images in a web page. 13 Answers 13 ...