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SQL Server IN vs. EXISTS Performance
...an overall large result set).
I believe the optimizer is smart enough to convert between "in" vs "exists" when there is a significant cost difference due to (1) and (2), otherwise it may just be used as a hint (e.g. exists to encourage use of an a seekable index on the right side).
Both forms c...
How can I remove a pytz timezone from a datetime object?
...you are using a library like arrow, then you can remove timezone by simply converting an arrow object to to a datetime object, then doing the same thing as the example above.
# <Arrow [2014-10-09T10:56:09.347444-07:00]>
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')
# datetime.date...
Global variables in Java
...u can make use of static Keyword
public class Example {
public static int a;
public static int b;
}
now you can access a and b from anywhere
by calling
Example.a;
Example.b;
share
|
im...
How can I get Git to follow symlinks?
...
$ git add src/main/path/ConvertSymlinkToDir fatal: 'src/main/path/ConvertSymlinkToDir' is beyond a symbolic link
– user1767316
Jul 21 '17 at 14:04
...
How do I sort an observable collection?
...no other answers here do at time of writing. The observable is partitioned into a left sorted half and a right unsorted half, where each time the minimum item (as found in the sorted list) is shifted to the end of the sorted partition from the unsorted. Worst case O(n). Essentially a selection sort ...
Turn a string into a valid filename?
...code is the following.
def slugify(value):
"""
Normalizes string, converts to lowercase, removes non-alpha characters,
and converts spaces to hyphens.
"""
import unicodedata
value = unicodedata.normalize('NFKD', value).encode('ascii', 'ignore')
value = unicode(re.sub('[^...
How do I get a YouTube video thumbnail from the YouTube API?
...6) "https://i.ytimg.com/vi/T0Jqdjbed40/default.jpg"
["width"]=>
int(120)
["height"]=>
int(90)
}
["medium"]=>
object(stdClass)#7 (3) {
["url"]=>
string(48) "https://i.ytimg.com/vi/T0Jqdjbed40/mqdefault.jpg"
["width"]=>
int(320)
["height"]=>
...
Actionbar notification count icon (badge) like Google has
...nActivity - setting and updating my view
static Button notifCount;
static int mNotifCount = 0;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getSupportMenuInflater();
inflater.inflate(R.menu.main, menu);
View count = menu.findItem(R.id.badge).ge...
static constructors in C++? I need to initialize private static objects
... see if the vector is initialized, and initialize it if it's not, but that introduces many necessary checks and doesn't seem like the optimal solution to the problem.
...
Callback to a Fragment from a DialogFragment
...alogFragment.
Fragment class:
public class MyFragment extends Fragment {
int mStackLevel = 0;
public static final int DIALOG_FRAGMENT = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState != null) {
mStackLevel...