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How to delete duplicate rows in SQL Server?
...4], [col5], [col6], [col7],
RN = ROW_NUMBER()OVER(PARTITION BY col1 ORDER BY col1)
FROM dbo.Table1
)
DELETE FROM CTE WHERE RN > 1
DEMO (result is different; I assume that it's due to a typo on your part)
COL1 COL2 COL3 COL4 COL5 COL6 COL7
john 1 1 1...
Amazon products API - Looking for basic overview and information
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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JavaScript variable number of arguments to function
... This would be better since it removes the coupling to argument order. Loosely coupled interfaces are good standard practice...
– Jonas Schubert Erlandsson
Jan 29 '13 at 20:05
...
Why do we have to normalize the input for an artificial neural network?
...ou have to normalize the values that you want to pass to the neural net in order to make sure it is in the domain. As with all functions, if the arguments are not in the domain, the result is not guaranteed to be appropriate.
The exact behavior of the neural net on arguments outside of the domain ...
How to order results with findBy() in Doctrine
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The second parameter of findBy is for ORDER.
$ens = $em->getRepository('AcmeBinBundle:Marks')
->findBy(
array('type'=> 'C12'),
array('id' => 'ASC')
);
...
EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?
...I converted craigvl's version to C# I had to add context.SaveChanges(); in order for it to work for me as below.
try
{
byte[] bytes = System.IO.File.ReadAllBytes(@"C:\Users\sheph_000\Desktop\Rawr.png");
Console.WriteLine(bytes);
context.BeverageTypes.AddOrUpdate(
x => x.Name...
Accessing a Dictionary.Keys Key through a numeric index
...t = mydict.Keys.ElementAt(mydict.Count -1);
You should not depend on the order of keys in a Dictionary. If you need ordering, you should use an OrderedDictionary, as suggested in this answer. The other answers on this page are interesting as well.
...
Factors in R: more than an annoyance?
...y they are useful because model fitting packages like lme4 use factors and ordered factors to differentially fit models and determine the type of contrasts to use. And graphing packages also use them to group by. ggplot and most model fitting functions coerce character vectors to factors, so the res...
Error handling with node.js streams
...ansform stream mechanics and calling its callback done with an argument in order to propagate the error:
var transformStream1 = new stream.Transform(/*{objectMode: true}*/);
transformStream1.prototype._transform = function (chunk, encoding, done) {
//var stream = this;
try {
// Do your tr...
How do JavaScript closures work?
...nment of function foo is a closure.
A function doesn't have to return in order to create a closure. Simply by virtue of its declaration, every function closes over its enclosing lexical environment, forming a closure.
function foo(x) {
var tmp = 3;
return function (y) {
console.l...