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mingw-w64 threads: posix vs win32
...ing features". I don't understand. Does "which GCC can then link in to..." mean that if I don't select win32, it can then select... ?
– Johannes Schaub - litb
Apr 29 '19 at 14:04
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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
...there is no index that can be used, so just because you use a join doesn't mean that you are safe. You would have to examine the execution plan of the query to tell if there may be any performance problems.
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update columns values with column of another table based on condition [duplicate]
... table1.Price = table2.price
FROM table1 INNER JOIN table2 ON table1.id = table2.id
You can also try this:
UPDATE table1
SET price=(SELECT price FROM table2 WHERE table1.id=table2.id);
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在MongoDB中模拟Auto Increment - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...代码大致如下所示：
<?php
function generate_auto_increment_id($namespace, array $option = array())
{
$option += array(
'init' => 1,
'step' => 1,
);
$instance = new Mongo();
$instance = $instance->selectCollection('_seq', 'seq');
$seq = ...
CSS/HTML: What is the correct way to make text italic?
...ou want to emphasise a phrase, use <em>.
The <i> tag has a new meaning in HTML5, representing "a span of text in an alternate voice or mood". So you should use this tag for things like thoughts/asides or idiomatic phrases. The spec also suggests ship names (but no longer suggests book/so...
How much space can your BitBucket account have?
... (ALMOST TWO YEARS LATER) *
I can still highly recommend it ;-)
And in the meantime they have addressed this question in their FAQ
We don't place any limits on the size of your repositories, file
uploads, or the number of public repositories you can have. Not on the
paid plan or on the free ...
JavaScript ternary operator example with functions
...s > that ? alert(this) : alert(that); //nice and short, little loss of meaning
if(expression) //longer blocks but organized and can be grasped by humans
{
//35 lines of code here
}
else if (something_else)
{
//40 more lines here
}
else if (another_one) /etc, etc
{
...
Less good:...
How to implement “select all” check box in HTML?
...
@HelloWorld: for each...in is actually valid Javascript: developer.mozilla.org/en/Core_JavaScript_1.5_Reference/… But, as porneL has pointed out, it's an obscure construct. Also, this code doesn't work in Safari 5 or Chrome 5. It works in FF 3.6, and IIRC, it worke...
How can I programmatically generate keypress events in C#?
...
When you say combination of keys do you mean like CTRL-C?
– Ravid Goldenberg
May 7 '16 at 18:26
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What are the “standard unambiguous date” formats for string-to-date conversion in R?
... in one of the two formats listed above.
I take "standard unambiguous" to mean "ISO-8601" (even though as.Date isn't that strict, as "%m/%d/%Y" isn't ISO-8601).
If you receive this error, the solution is to specify the format your date (or datetimes) are in, using the formats described in ?strptim...