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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
...mode used for querying on Product is Select
Fetch mode (default): Supplier information is accessed
Caching does not play a role for the first time the
Supplier is accessed
Fetch mode is Select Fetch (default)
// It takes Select fetch mode as a default
Query query = session.createQuery( "from Prod...
_DEBUG vs NDEBUG
...s to special debug versions of runtime library such as calls to malloc and free. Then NDEBUG will disable assertions.
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When should you branch?
... associate tasks with branches, not individual changesets, which makes you free to commit as many times as you want and doesn't impose a limit like "one checkin per task".
Tasks are independent (normally starting from a stable baseline, so you only focus on your code, not on fixing bugs from your fo...
How does Activity.finish() work in Android?
...()...a "finish" message will get added to this queue but the thread is not free to pick & execute "finish" action
until currently executing method returns i.e Thread is freed from current task.
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Why would $_FILES be empty when uploading files to PHP?
...file uploads failed without warning. After much gnashing of teeth, I tried freeing up additional space, after which file uploads suddenly worked again.
Be sure that you're not submitting the form through an AJAX POST request instead of a normal POST request that causes a page to reload. I went thro...
Can you “compile” PHP code and upload a binary-ish file, which will just be run by the byte code int
...hange in summer 2013
Roadsend PHP Compiler
GitHub, GitHub of a rewrite
free, open source implementation of PHP with compiler
compiles to native binaries (Windows, Linux)
discontinued since 2010 till contributors found – website down, stays on GitHub where last change is from early 2012
bcomp...
How to know what the 'errno' means?
...ou've passed to it. Caution, this is not thread- or interrupt-safe; it is free to rewrite the string and return the same pointer on the next invocation. Use strerror_r if you need to worry about that.
#include <stdio.h>
void perror(const char *s);
/* you can think of it as being implemente...
Remove URL parameters without refreshing page
...ow.history.pushState("object or string", "Title", "/" + myNewURL );
Feel free to replace pushState with replaceState based on your requirements.
You can substitute the paramter "object or string" with {} and "Title" with document.title so the final statment will become:
window.history.pushStat...
Should I use document.createDocumentFragment or document.createElement
...offers you the flexibility to choose whatever child elements to append for free? Correct me if i were wrong.
– Xlee
Feb 24 '17 at 6:26
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How does Trello access the user's clipboard?
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Feel free to use js2coffee.org to translate the original into js if so inclined.
– Alexandr Kurilin
Aug 3 '13 at 17:37
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