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Add 2 hours to current time in MySQL?
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SELECT *
FROM courses
WHERE DATE_ADD(NOW(), INTERVAL 2 HOUR) > start_time
See Date and Time Functions for other date/time manipulation.
share
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How do I select child elements of any depth using XPath?
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If you are using the XmlDocument and XmlNode.
Say:
XmlNode f = root.SelectSingleNode("//form[@id='myform']");
Use:
XmlNode s = f.SelectSingleNode(".//input[@type='submit']");
It depends on the tool that you use. But .// will select any child, any depth from a reference node.
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How to lay out Views in RelativeLayout programmatically?
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From what I've been able to piece together, you have to add the view using LayoutParams.
LinearLayout linearLayout = new LinearLayout(this);
RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(
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Create batches in linq
... int maxItems)
{
return items.Select((item, inx) => new { item, inx })
.GroupBy(x => x.inx / maxItems)
.Select(g => g.Select(x => x.item));
}
}
and the usage would be:
List<int> list = new L...
Populate data table from data reader
... conn = new SqlConnection(connString);
string query = "SELECT * FROM Customers";
SqlCommand cmd = new SqlCommand(query, conn);
conn.Open();
SqlDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
DataTable dtSchema = ...
Can I see changes before I save my file in Vim?
...ng the file to the command (on stdin). In the command, - tells it to read from stdin.
– chaos
Oct 7 '13 at 16:15
14
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What's the false operator in C# good for?
...he operator false declared in T, and T.&(x, y) is an invocation of the selected operator &. In other words, x is first evaluated and operator false is invoked on the result to determine if x is definitely false. Then, if x is definitely false, the result of the operation is the value previou...
How to give ASP.NET access to a private key in a certificate in the certificate store?
...on @Phil Hale comment:
Beware, if you're on a domain, your domain will be selected by default in the 'from location box'. Make sure to change that to "Local Computer". Change the location to "Local Computer" to view the app pool identities.
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What is thread contention?
...e a lock is one type of thing that there can be contention over, it is far from the only such thing. There can be contention for lockless resources as well. (For example, if two threads keep atomically incrementing the same integer, they may experience contention due to cache ping-ponging. No locks ...
How to manually expand a special variable (ex: ~ tilde) in bash
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Plagarizing myself from a prior answer, to do this robustly without the security risks associated with eval:
expandPath() {
local path
local -a pathElements resultPathElements
IFS=':' read -r -a pathElements <<<"$1"
: "${pathE...