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.NET data structures: ArrayList, List, HashTable, Dictionary, SortedList, SortedDictionary — Speed,
... items using a zero-based index) properties. IDictionary on the other hand means you can access items by any-hashable index.
Array, ArrayList and List all implement IList.
Dictionary, SortedDictionary, and Hashtable implement IDictionary.
If you are using .NET 2.0 or higher, it is recommended that y...
Core pool size vs maximum pool size in ThreadPoolExecutor
...w ArrayBlockingQueue<Runnable>(50));
Here, 5 is the corePoolSize - means Jvm will create new thread for new task for first 5 tasks. and other tasks will be added to the queue until queue is getting full (50 tasks).
10 is the maxPoolSize - JVM can create max 10 threads.
Means if there are a...
Does a UNIQUE constraint automatically create an INDEX on the field(s)?
...e keys are in fact B-tree type indexes.
A composite index on (email, user_id) is enough, you don't need a separate index on email only - MySQL can use leftmost parts of a composite index. There may be some border cases where the size of an index can slow down your queries, but you should not worry ...
Which is preferred: Nullable.HasValue or Nullable != null?
...ue = null;
not to mention that val.Value is a read-only property anyway, meaning we can't even use something like:
val.Value = 3;
but again, polymorphous overloaded implicit conversion operators let us do:
val = 3;
No need to worry about polysomthing whatchamacallits though, so long as it wo...
When restoring a backup, how do I disconnect all active connections?
...ster
Go
Declare @dbname sysname
Set @dbname = 'databaseName'
Declare @spid int
Select @spid = min(spid) from master.dbo.sysprocesses
where dbid = db_id(@dbname)
While @spid Is Not Null
Begin
Execute ('Kill ' + @spid)
Select @spid = min(spid) from master.dbo.sysprocesses
wh...
When should I choose Vector in Scala?
...
Thanks for the answer. What do you mean by "has great locality"?
– Ngoc Dao
Sep 25 '12 at 6:24
11
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mysql -> insert into tbl (select from another table) and some default values [duplicate]
...
You simply have to do:
INSERT INTO def (catid, title, page, publish)
SELECT catid, title, 'page','yes' from `abc`
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Close Bootstrap Modal
...cluding the 'toggle' at all is superflous. Just make sure not to have a 'hide' class on the modal div. But yes, the typo was causing the issue. so +1
– merv
May 11 '13 at 3:21
...
Set keyboard caret position in html textbox
...ion of a textbox or textarea that you wish:
function setCaretPosition(elemId, caretPos) {
var elem = document.getElementById(elemId);
if(elem != null) {
if(elem.createTextRange) {
var range = elem.createTextRange();
range.move('character', caretPos);
...
How to dynamically change header based on AngularJS partial view?
... uhmm... I'm not sure if placing a service straight into the $scope is considered nice in the AngularJS architecture. Maybe it could be better to put in $scope a Controller function, and then let this function query the service.
– superjos
Mar 6 '13 at 16:31
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