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Multiple INSERT statements vs. single INSERT with multiple VALUES
...e!CSQLSource::FCompWrapper() + 0x922be bytes
sqlservr.exe!CSQLSource::Transform() + 0x120431 bytes
sqlservr.exe!CSQLSource::Compile() + 0x2ff bytes
So going off the names in the stack trace it appears to spend a lot of time comparing strings.
This KB article indicates that DeriveNorm...
Loop through an array in JavaScript
...(sometimes a.k.a. collect, but very different from apply) is expressly for transforming each element of an array into a corresponding result; it's a 1-to-1 mapping, hence the name. It's part of a whole family of operations that include reduce (which produces a single result from the whole array) an...
Is std::vector so much slower than plain arrays?
...zation. The latter usually happens on stages where parse result is already transformed numerous times to a much more low-level representation.
– Pavel Minaev
Sep 8 '10 at 4:37
...
How to generate JAXB classes from XSD?
...nputStream;
import java.net.URL;
import javax.xml.bind.*;
import javax.xml.transform.stream.StreamSource;
import org.w3._2005.atom.FeedType;
public class Demo {
public static void main(String[] args) throws Exception {
JAXBContext jc = JAXBContext.newInstance("org.w3._2005.atom");
...
What exactly is a C pointer if not a memory address?
...legal per the language standard so long as the implementation knows how to transform those numbers into addresses and how to do pointer arithmetic with those numbers and all other things required by the standard.
– Alexey Frunze
Mar 1 '13 at 6:12
...
Why does SIGPIPE exist?
... default behavior for pure "filter" programs that continuously read input, transform it somehow, and write output. Without SIGPIPE, unless these programs explicitly handle write errors and immediately exit (which might not be the desired behavior for all write errors, anyway), they will continue run...
Are HLists nothing more than a convoluted way of writing tuples?
...tation which could accept arguments of these two very different shapes and transform them in a type safe way.
The ability to abstract over arity is likely to be of interest anywhere that fixed arities are involved: as well as tuples, as above, that includes method/function parameter lists, and case...
Why are floating point numbers inaccurate?
...for more detail, see: 675539944105574 / 4503599627370496.)
Now that we've transformed the third component into a fractional number, adding 1 gives the true mantissa.
Recapping the Components
Sign (first component): 0 for positive, 1 for negative
Exponent (middle component): Subtract 2(# of bits)...
O(nlogn) Algorithm - Find three evenly spaced ones within binary string
...x8). This step is O(n).
Find the polynomial q = p2, using the Fast Fourier Transform. For the example above, we get the polynomial q(x) = x16 + 2x13 + 2x12 + 3x10 + 4x9 + x8 + 2x7 + 4x6 + 2x5 + x4 + 2x3 + x2. This step is O(n log n).
Ignore all terms except those corresponding to x2k for some k in L...
How to pass parameters correctly?
...t needs to store a copy of that object (possibly to return the result of a transformation of the input without altering the input), then you could consider taking by value:
void foo(my_class obj) // One copy or one move here, but not working on
// the original object...
{
...