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Insert Update stored proc on SQL Server
...UPSERT - from sqlservercentral.com:
For every update in the case mentioned above we are removing one
additional read from the table if we
use the UPSERT instead of EXISTS.
Unfortunately for an Insert, both the
UPSERT and IF EXISTS methods use the
same number of reads on the table.
T...
How to extract the decision rules from scikit-learn decision-tree?
... is no need to have multiple if statements in the recursive function, just one is fine.
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Purpose of memory alignment
...ly be worked around by doing 4 inefficient single byte fetches rather than one efficient word fetch, but many language specifiers decided it would be easier just to outlaw them and force everything to be aligned.
There is much more information in this link that the OP discovered.
...
Using LINQ to concatenate strings
...in the other answer
Use aggregate queries like this:
string[] words = { "one", "two", "three" };
var res = words.Aggregate(
"", // start with empty string to handle empty list case.
(current, next) => current + ", " + next);
Console.WriteLine(res);
This outputs:
, one, two, three
An a...
Equation (expression) parser with precedence?
...lex/Bison may very well be overkill for a small, simple interpreter, but a one off parser+evaluator may cause trouble down the line when changes need to be made or features need to be added. Your situation will vary and you will need to use your judgement; just don't punish other people for your sin...
What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4
...
@Reed there isn't one, and I actually interpreted that answer to mean that you would have to compile log4net yourself. I guess I can do that, but I'd rather just take their precompiled binary and reference it from my project. I'll look into ...
Does it make sense to do “try-finally” without “catch”?
...uted before any exception in the try block. So If there are two exceptions one in try and one in finally the only exception that will be thrown is the one in finally. This behavior is not the same in PHP and Python as both exceptions will be thrown at the same time in these languages and the excepti...
Storing money in a decimal column - what precision and scale?
I'm using a decimal column to store money values on a database, and today I was wondering what precision and scale to use.
...
What is the explicit promise construction antipattern and how do I avoid it?
...ain with .then and you can return promises directly. Your code in getStuffDone can be rewritten as:
function getStuffDone(param){
return myPromiseFn(param+1); // much nicer, right?
}
Promises are all about making asynchronous code more readable and behave like synchronous code without hiding ...
How do you diff a directory for only files of a specific type?
...e files that match any pattern in FILE.
So it looks like -x only accepts one pattern as you report but if you put all the patterns you want to exclude in a file (presumably one per line) you could use the second flag like so:
$ diff /destination/dir/1 /destination/dir/2 -r -X exclude.pats
where...