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How to set a default value for an existing column
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MSSQL is weird for calling default values "constraints". If anything, they are relaxations; the opposite of a constraint! They make more things valid, not fewer.
– Roman Starkov
May 11 '13 at 12:06
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Wait until a process ends
...Responding that went to false after closing the window like that:
while (!_process.HasExited && _process.Responding) {
Thread.Sleep(100);
}
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Perhaps this helps someone.
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impro...
How do I install from a local cache with pip?
I install a lot of the same packages in different virtualenv environments. Is there a way that I can download a package once and then have pip install from a local cache?
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How can I drop all the tables in a PostgreSQL database?
How can I drop all tables in PostgreSQL, working from the command line?
24 Answers
24
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SQL Case Sensitive String Compare
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Select * from a_table where attribute = 'k' COLLATE Latin1_General_CS_AS
Did the trick.
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Running Bash commands in Python
... are commonly overlooked.
Prefer subprocess.run() over subprocess.check_call() and friends over subprocess.call() over subprocess.Popen() over os.system() over os.popen()
Understand and probably use text=True, aka universal_newlines=True.
Understand the meaning of shell=True or shell=False and how...
Is there a Java reflection utility to do a deep comparison of two objects?
...preserving the equals contract"
Besides what good does a boolean method really do you anyway? It'd be nice to actually encapsulate all the differences between the original and the clone, don't you think? Also, I'll assume here that you don't want to be bothered with writing/maintaining comparison c...
HTTP authentication logout via PHP
...ecification (section 15.6):
Existing HTTP clients and user agents typically retain authentication
information indefinitely. HTTP/1.1. does not provide a method for a
server to direct clients to discard these cached credentials.
On the other hand, section 10.4.2 says:
If the request...
How to prevent caching of my Javascript file? [duplicate]
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Add a random query string to the src
You could either do this manually by incrementing the querystring each time you make a change:
<script src="test.js?version=1"></script>
Or if you are using a server side language, you could automatically generate this:
ASP.NET:
<scri...
Xcode without Storyboard and ARC
...gWithOptions: (NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
TestViewController *test = [[TestViewController alloc] initWithNibName:@"TestViewController" bundle...