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How to select rows that have current day's timestamp?
...t
WHERE DATE(timestamp) = CURDATE() --- using DATE(timestamp)
ORDER BY timestamp ;
Explain:
ID SELECT_TYPE TABLE TYPE POSSIBLE_KEYS KEY KEY_LEN REF
1 SIMPLE test ALL
ROWS FILTERED EXTRA
6671 100 Using where; Using filesort
It filters all (6671) rows and ...
What is the best way to create constants in Objective-C
...s, enum is great and you absolutely should use it. (Even better, use the NS_ENUM and NS_OPTIONS macros.) For other things, you must use something else; enum does not do anything but integers.
And other questions
I was thinking about importing the file in the Reddit-Prefix.pch file to make the c...
How can I check if a string is null or empty in PowerShell?
Is there a built-in IsNullOrEmpty -like function in order to check if a string is null or empty, in PowerShell?
11 Answers...
How to use pull to refresh in Swift?
...refresh")
refreshControl.addTarget(self, action: #selector(self.refresh(_:)), for: .valueChanged)
tableView.addSubview(refreshControl) // not required when using UITableViewController
}
@objc func refresh(_ sender: AnyObject) {
// Code to refresh table view
}
At some point you could en...
Converting a view to Bitmap without displaying it in Android?
...( v.getLayoutParams().width, v.getLayoutParams().height, Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
v.layout(v.getLeft(), v.getTop(), v.getRight(), v.getBottom());
v.draw(c);
return b;
}
if the view wasn't displayed before the size of it will be zero. Its p...
Like Operator in Entity Framework?
...erators and MS SQL is that EF adds them as escaped parameters "Name LIKE @p__linq__1 ESCAPE N''~''" which in my very limited use case performs a lot slower then if the search string is just in the query "Name like '%xyz%'. For the scenarios I have I'm still using StartsWith and Contains but I do i...
NodeJS: How to get the server's port?
...eServer();
// Configuration
app.configure(function(){
app.set('views', __dirname + '/views');
app.use(express.bodyDecoder());
app.use(express.methodOverride());
app.use(express.compiler({ src: __dirname + '/public', enable: ['less'] }));
app.use(app.router);
app.use(express.staticProvi...
Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
...
Short answer: portability.
While __arglist, __makeref, and __refvalue are language extensions and are undocumented in the C# Language Specification, the constructs used to implement them under the hood (vararg calling convention, TypedReference type, arglist...
Constructor overloading in Java - best practice
...his as well as other examples that the constructor definitions are written order of which uses the least to the most arguments in the constructor call. Is this standard Java style? Why?: In my opinion it would make sense to do it the opposite way that way you the first constructor definition you sh...
Resolve Type from Class Name in a Different Assembly
...pe>
{
private static Dictionary<string, Type> _types;
private static object _lock = new object();
public static Type FromString(string typeName)
{
if (_types == null) CacheTypes();
if (_types.ContainsK...