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How to use MySQL DECIMAL?
...E columns are not the same as DECIMAL columns, and you will get in trouble if you use DOUBLE columns for financial data.
DOUBLE is actually just a double precision (64 bit instead of 32 bit) version of FLOAT. Floating point numbers are approximate representations of real numbers and they are not ex...
How to deny access to a file in .htaccess
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If your using IIS, do this in the web.config file instead.
– Shaun Luttin
Nov 3 '14 at 16:33
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How do I read CSV data into a record array in NumPy?
I wonder if there is a direct way to import the contents of a CSV file into a record array, much in the way that R's read.table() , read.delim() , and read.csv() family imports data to R's data frame?
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What are “decorators” and how are they used?
...onJaques - That's a great question. I have not come across such situation. If I were to guess, the version of the service that module C sees should be the decorated one from module A but I cannot say that for sure until I try it myself. Why don't you write a simple plunkr/jsffidle and experiment wit...
What is the facade design pattern?
...a given problem in the best possible way.
The Facade design pattern simplifies the interface to a complex system; because it is usually composed of all the classes which make up the subsystems of the complex system.
A Facade shields the user from the complex details of the system and provides th...
A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception pro
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If you create a Task, and you don't ever call task.Wait() or try to retrieve the result of a Task<T>, when the task is collected by the garbage collector, it will tear down your application during finalization. For det...
How to COUNT rows within EntityFramework without loading contents?
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@JoSmo, no, that's a totally different query.
– Craig Stuntz
Jul 8 '15 at 18:28
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MySQL: ignore errors when importing?
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if anyone else wondered about the -D in -D dbName, it's the same as specifying --database=dbName
– Aamnah
Mar 12 '19 at 16:49
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Why is the shovel operator (
...from the tap.
At the end of the day, you would have more glasses to clean if you choose to pick a new glass every time you needed to refill your glass.
The same applies to the shovel operator and the plus equal operator. Plus equal operator picks a new 'glass' every time it needs to refill its gla...
Fastest way to find second (third…) highest/lowest value in vector or column
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x = rnorm(N)
maxN <- function(x, N=2){
len <- length(x)
if(N>len){
warning('N greater than length(x). Setting N=length(x)')
N <- length(x)
}
sort(x,partial=len-N+1)[len-N+1]
}
microbenchmark::microbenchmark(
Rfast = Rfast::nth(x,5,descending = T...