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PostgreSQL: Difference between text and varchar (character varying)
...ealing with values shorter than n (pads them to n), and can lead to subtle errors because of adding trailing
spaces, plus it is problematic to change the limit
varchar(n) – it's problematic to change the limit in live environment (requires exclusive lock while altering table)
varchar – jus...
How to fluently build JSON in Java?
...bject.toString();
And through the magic of generics it generates compile errors if you try to add an element to an array with a property key or an element to an object without a property name:
JsonObject jsonArray = JsonBuilderFactory.buildArray().addObject().end().add("foo", "bar").getJson(); //...
Check if a Windows service exists and delete in PowerShell
...f you just want to check service existence:
if (Get-Service "My Service" -ErrorAction SilentlyContinue)
{
"service exists"
}
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Creating email templates with Django
...: "Gilbert"}) because Context is deprecated. When I used Context, I got an error > TypeError: context must be a dict rather than Context
text_content = render_to_string('receipt_email.txt', context, request=request)
html_content = render_to_string('receipt_email.html', context, request=r...
How can I generate a self-signed certificate with SubjectAltName using OpenSSL? [closed]
... = @alternate_names under v3_ca section. Could it be a typo? Here's the error I get: error:22097069:X509 V3 routines:DO_EXT_NCONF:invalid extension string:v3_conf.c:139:name=subjectAltName,section=@alternate_names 140487468840608:error:22098080:X509 V3 routines:X509V3_EXT_nconf:error in extension...
How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
... your cookies using a padding oracle attack, because your code produces an error page if the padding is somehow broken.
This is not a hypothetical scenario: Microsoft had this exact flaw in ASP.NET until a few years ago.
The problem is there are a lot of pitfalls regarding cryptography and it is ext...
Specified argument was out of the range of valid values. Parameter name: site
I am getting this Kind of Error like::
12 Answers
12
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What does “Could not find or load main class” mean?
...new Java developers experience is that their programs fail to run with the error message: Could not find or load main class ...
...
Eclipse says: “Workspace in use or cannot be created, chose a different one.” How do I unlock a work
...ad used a symlink to make it look like it was in the same location. I saw errors in logs indicating that eclipse was looking at the previous "real" location, as opposed to following the symlink, and this was causing the errors.
In my case, I just moved the workspace back to its old location.
...
ArrayBuffer to base64 encoded string
...se64ToArrayBuffer() function here: codeshare.io/PT4pb but that gives me an error as: Failed to execute 'atob' on 'Window': The string to be decoded is not correctly encoded.
– bawejakunal
Jul 11 '15 at 13:27
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