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Sql Server equivalent of a COUNTIF aggregate function
...E WHEN myColumn=1 THEN 1 ELSE 0 END)
FROM AD_CurrentView
Note: in my own test NULLs were not an issue, though this can be environment dependent. You could handle nulls such as:
SELECT SUM(CASE WHEN ISNULL(myColumn,0)=1 THEN 1 ELSE 0 END)
FROM AD_CurrentView
...
ServiceStack vs ASP.Net Web API [closed]
...urning HTML in ServiceStack that is explained in detail here.
Includes fastest text and binary serializers for .NET
Resilient and fast serializers are of primary importance in an API to ensure fast response times and a versionable API which doesn't break existing clients which is why ServiceStack ...
PostgreSQL: How to make “case-insensitive” query
...) and upper() will give you a sequential
scan. It can't use indexes. On my test system, using lower() takes
about 2000 times longer than a query that can use an index. (Test data has a little over 100k rows.)
There are at least three less frequently used solutions that might be more effective.
U...
Why would I prefer using vector to deque
...
I think that good idea to make perfomance test of each case. And make decision relying on this tests.
I'd prefer std::deque than std::vector in most cases.
share
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Read input from console in Ruby?
...program, ARGV will take take a command line command that looks like this:
test.rb hi my name is mukesh
and create an array that looks like this:
["hi", "my", "name", "is", "mukesh"]
But, if I want to passed limited input then we can use something like this.
test.rb 12 23
and use those inpu...
Is there a “not in” operator in JavaScript for checking object properties?
...rdão, just negate it:
if (!(id in tutorTimes)) { ... }
Note: The above test if tutorTimes has a property with the name specified in id, anywhere in the prototype chain. For example "valueOf" in tutorTimes returns true because it is defined in Object.prototype.
If you want to test if a property ...
Is String.Format as efficient as StringBuilder
...g that mistake and got the expected results: the String + operator was fastest, followed by StringBuilder, with String.Format bringing up the rear.
– Ben Collins
Jul 19 '13 at 21:28
...
How to make Regular expression into non-greedy?
...egular /(\[.+\])/g my result is : [|cơ thử|nghiệm|] thị trường [|test2|đây là test lần 2|] chứng khoán [|Mỹ|day la nuoc my|] :(
– Rueta
May 13 '10 at 4:00
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How to get the file name from a full path using JavaScript?
...
Just for the sake of performance, I tested all the answers given here:
var substringTest = function (str) {
return str.substring(str.lastIndexOf('/')+1);
}
var replaceTest = function (str) {
return str.replace(/^.*(\\|\/|\:)/, '');
}
var execTest = f...
Django: Get list of model fields?
...point. Doesn't it work from class directly also? Don't have the example to test on. Anyway the example is about instance, so it should be from bp or at least bp.__class__
– Maks
Jan 16 at 7:28
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