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How to “return an object” in C++?
...ll probably optimize the call to the copy constructor, so there will be no extra overhead. (Like dreamlax pointed out in the comment).
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Turning a Comma Separated string into individual rows
...ample table:
CREATE TABLE Testdata
(
SomeID INT,
OtherID INT,
String VARCHAR(MAX)
)
INSERT Testdata SELECT 1, 9, '18,20,22'
INSERT Testdata SELECT 2, 8, '17,19'
INSERT Testdata SELECT 3, 7, '13,19,20'
INSERT Testdata SELECT 4, 6, ''
INSERT Testdata SELECT 9, 11, '1,2,3,4'
The q...
How to generate JAXB classes from XSD?
....w3._2005.atom.FeedType;
public class Demo {
public static void main(String[] args) throws Exception {
JAXBContext jc = JAXBContext.newInstance("org.w3._2005.atom");
Unmarshaller unmarshaller = jc.createUnmarshaller();
URL url = new URL("http://bdoughan.blogspot.com/at...
SQL - Update multiple records in one query
... $sql = "";
$columns = array_keys($array[0]);
$columns_as_string = implode(', ', $columns);
$sql .= "
INSERT INTO $table
(" . $columns_as_string . ")
VALUES ";
$len = count($array);
foreach ($array as $index => $values) {
$s...
Truncate Two decimal places without rounding
...t it to an Integer. The question would be why you would want to incur that extra overhead anyway since Truncate returns Decimal integrals anyway. Just do something like: decimal step = (decimal)Math.Pow(10, precision); return Math.Truncate(step * value) / step;
– Sarel Esterhu...
Why is subtracting these two times (in 1927) giving a strange result?
If I run the following program, which parses two date strings referencing times 1 second apart and compares them:
10 Answer...
Unique Key constraints for multiple columns in Entity Framework
...
EF 6 and below:
First approach:
dbContext.Database.ExecuteSqlCommand(string.Format(
@"CREATE UNIQUE INDEX LX_{0} ON {0} ({1})",
"Entitys", "FirstColumn, SecondColumn"));
This approach is very fast and useful but the main problem is th...
Get Insert Statement for existing row in MySQL
...blob if you have blob columns (for example a bit(1)), it would write it as string otherwise, which could result in Unknown command '\0' error when executing the INSERT.
– moffeltje
May 19 at 9:18
...
What are the differences between B trees and B+ trees?
...e work and more disk reads which makes sense because the tree has all this extra data in it. I don't get it.
– Eric
Sep 2 '15 at 2:45
...
Bootstrap 3 panel header with buttons wrong position
...ve your floats defined BEFORE the rest of the contents or you'll have that extra line-break problem.
<div class="panel-heading">
<div class="btn-group pull-right">
<a href="#" class="btn btn-default btn-sm">## Lock</a>
<a href="#" class="btn btn-defaul...