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Compare dates in MySQL
...
That is SQL Server syntax for converting a date to a string. In MySQL you can use the DATE function to extract the date from a datetime:
SELECT *
FROM players
WHERE DATE(us_reg_date) BETWEEN '2000-07-05' AND '2011-11-10'
But if you want to take advanta...
How can I wait for a thread to finish with .NET?
...(Hopefully these compile, I haven't tried)
public class Form1 : Form
{
int _count;
void ButtonClick(object sender, EventArgs e)
{
ThreadWorker worker = new ThreadWorker();
worker.ThreadDone += HandleThreadDone;
Thread thread1 = new Thread(worker.Run);
th...
Scala: what is the best way to append an element to an Array?
Say I have an Array[Int] like
3 Answers
3
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jQuery posting JSON
...ype : 'POST',
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if you pass an object as settings.data jQuery will convert it to query parameters and by default send with the data type application/x-www-form-urlencoded; charset=UTF-8, probably not what you want
sh...
How to prevent Node.js from exiting while waiting for a callback?
...
I guess he means that if the library has converted code that once was synchronous to a new asynchronous version, it's possible that the library creators forgot to queue the callbacks and the event queues get emptied somewhere in the middle of your execution, thus fi...
Difference between constituency parser and dependency parser
...eterministic (rule-based) transformation on the constituency parse tree to convert it into a dependency tree.
More can be found here:
http://en.wikipedia.org/wiki/Phrase_structure_grammar
http://en.wikipedia.org/wiki/Dependency_grammar
...
How to extract one column of a csv file
...}
' c=3 < <(dos2unix <textfile.csv)
Note the use of dos2unix to convert possible DOS style line breaks (CRLF i.e. "\r\n") and UTF-16 encoding (with byte order mark) to "\n" and UTF-8 (without byte order mark), respectively. Standard CSV files use CRLF as line break, see Wikipedia.
If the...
Linq to Entities - SQL “IN” clause
...ther uses method syntax. Essentially, they are the same and could be used interchangeably depending on your preference:
Query Syntax:
var selected = from u in users
where new[] { "Admin", "User", "Limited" }.Contains(u.User_Rights)
select u
foreach(user u in selecte...
Array initializing in Scala
...o more dynamic inits with fill, e.g.
Array.fill(10){scala.util.Random.nextInt(5)}
==>
Array[Int] = Array(0, 1, 0, 0, 3, 2, 4, 1, 4, 3)
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Reorder levels of a factor without changing order of values
...sapply(dtf, class)
numbers letters
"integer" "factor"
Now, if you convert this factor to numeric, you'll get:
# return underlying numerical values
1> with(dtf, as.numeric(letters))
[1] 1 2 3 4
# change levels
1> levels(dtf$letters) <- letters[4:1]
1> dtf
numbers letters
1 ...