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What is the difference between Scope_Identity(), Identity(), @@Identity, and Ident_Current()?
... somewhere, the scope_identity() function will return the identity created by the query, while the @@identity function will return the identity created by the trigger.
So, normally you would use the scope_identity() function.
...
delete_all vs destroy_all?
... / destroy_all: The associated objects are destroyed alongside this object by calling their destroy method
delete / delete_all: All associated objects are destroyed immediately without calling their :destroy method
share
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What is the significance of initializing direction arrays below with given values when developing ch
...ion x,y, and we want to add onto its x and its y value to move it to a nearby location, 1,0 is east, -1,0 is west, 0,1 is south, 0,-1 is north and so on.
(Here I have said top left is 0,0 and bottom right is 4,4 and shown what move each index of the arrays will make from the central point, X, at 2,...
Do fragments really need an empty constructor?
...s method. This whole class example should show the usage.
/**
* Created by chris on 21/11/2013
*/
public class StationInfoAccessibilityFragment extends BaseFragment implements JourneyProviderListener {
public static final StationInfoAccessibilityFragment newInstance(String crsCode) {
...
When is memoization automatic in GHC Haskell?
... (%) a. These are technically different because they can be distinguished by seq. I think I might have submitted a GHC Trac ticket about this.)
Given this, you can see that in m1', the expression filter odd [1..] is not contained in any lambda-expression, so it will only be computed once per run ...
How many GCC optimization levels are there?
...iption format described in the internals documentation and translated to C by opth-gen.awk and optc-gen.awk.
It contains the following interesting lines:
O
Common JoinedOrMissing Optimization
-O<number> Set optimization level to <number>
Os
Common Optimization
Optimize for space rather...
How line ending conversions work with git core.autocrlf between different operating systems
...s EOL characters in the text files of your working tree.
core.eol = native by default, which means Windows EOLs are CRLF and *nix EOLs are LF in working trees.
Repository gitattributes settings determines EOL character normalization for commits to the repository (default is normalization to LF chara...
What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
...hich make it easy to modify history (in a sense -- the content referred to by a hash will never change, but references to that hash may be lost); some purists (myself included) don't like that very much.
Bazaar is reasonably fast (very fast for trees with shallow history, but presently scales poorl...
Why does Bootstrap set the line-height property to 1.428571429?
...
The line-height is determined by dividing the targeted line-height size by the font-size. In this example, Bootstrap is baselining their line-height off of a 14px font-size. The target line-height is 20px:
20px ÷ 14px = 1.428571429
When determining you...
ASP.NET MVC3: What is the packages.config for?
...
This file is managed by the NuGet infrastructure. It's used to track installed packages with their respective versions. If you installed the ASP.NET MVC 3 Tools Update it uses NuGet by default to track packages such as jQuery, EntityFramework, Mo...