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Oracle SELECT TOP 10 records
...E, 'DD.MM.YYYY') ='06.02.2009')
ORDER BY STORAGE_GB DESC )
WHERE ROWNUM <= 10
Oracle applies rownum to the result after it has been returned. You need to filter the result after it has been returned, so a subquery is required. You can also use RANK() function to get Top-N results.
For perfor...
Tar archiving that takes input from a list of files
...other variants, do check out the other answers below. E.g. For sunOS, two alternatives I have tested: tar -cvf file.tar -I list.txt and tar -cvf file.tar $(cat list.txt)
– Nasri Najib
Sep 2 '19 at 8:37
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How expensive is the lock statement?
I've been experimenting with multi threading and parallel processing and I needed a counter to do some basic counting and statistic analysis of the speed of the processing. To avoid problems with concurrent use of my class I've used a lock statement on a private variable in my class:
...
Algorithm to calculate the number of divisors of a given number
... understanding this correctly. Start with your largest prime divisor and multiply it by itself until a further multiplication would exceed the number n. Then move to the next lowest factor and times the previous prime ^ number of times it was multiplied by the current prime and keep multiplying by t...
What's the false operator in C# good for?
...other words, x is first evaluated and operator false is invoked on the result to determine if x is definitely false. Then, if x is definitely false, the result of the operation is the value previously computed for x. Otherwise, y is evaluated, and the selected operator & is invoked on the value ...
String vs. StringBuilder
...
StringBuilder is preferable IF you are doing multiple loops, or forks in your code pass... however, for PURE performance, if you can get away with a SINGLE string declaration, then that is much more performant.
For example:
string myString = "Some stuff" + var1 + " mo...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
...ror is a subclass of the StandardError class, and the actual rule is that although you can raise any type of object, the blank rescue will by default only catch anything that inherits from StandardError. Everything else has to be specific.
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Retina displays, high-res background images
...would not advise using the shorthand form as it is not supported in iOS <= 6 or Android making it unreliable in most situations.
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How are ssl certificates verified?
...y there have been a few approaches, such as "send an email from webmaster@<domain-being-verified> or "Place this file on your domain to prove you own it." However, there have indeed been problems with people getting CAs to issue certificates for domains they don't own - famously someone manag...
How to pass json POST data to Web API method as an object?
...gether to single controller model. So your return type might be IActionResult or one of it's implementation (Ex :OkObjectResult)
Use
contentType:"application/json"
You need to use JSON.stringify method to convert it to JSON string when you send it,
And the model binder will bind the json dat...