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Simple way to transpose columns and rows in SQL?
...n all
select color, Eric value, 'Eric' name
from yourTable
) src
group by name
See SQL Fiddle with Demo
The UNION ALL performs the UNPIVOT of the data by transforming the columns Paul, John, Tim, Eric into separate rows. Then you apply the aggregate function sum() with the case statement to g...
PostgreSQL - max number of parameters in “IN” clause?
...where id in (... 100k values...)" with the postgresql jdbc driver:
Caused by: java.io.IOException: Tried to send an out-of-range integer as a 2-byte value: 100000
at org.postgresql.core.PGStream.SendInteger2(PGStream.java:201)
...
Do AJAX requests retain PHP Session info?
...f this page seems quite high).
PHP can be configured to maintain sessions by URL-rewriting, instead of cookies. (How it's good or bad (<-- see e.g. the topmost comment there) is a separate question, let's now stick to the current one, with just one side-note: the most prominent issue with URL-ba...
How to get the system uptime in Windows? [closed]
...
Following are eight ways to find the Uptime in Windows OS.
1: By using the Task Manager
In Windows Vista and Windows Server 2008, the Task Manager has been beefed up to show additional information about the system. One of these pieces of info is the server’s running time.
Right-cli...
Google MAP API Uncaught TypeError: Cannot read property 'offsetWidth' of null
...he second option is more sensitive to invalid HTML).
Note, as pointed out by matthewsheets this also could be cause by the div with that id not existing at all in your HTML (the pathological case of the div not being rendered)
Adding code sample from wf9a5m75's post to put everything in one place...
How do I get the value of text input field using JavaScript?
...he input element inside a form element):
Method 1:
document.getElementById('textbox_id').value to get the value of
desired box
For example, document.getElementById("searchTxt").value;
Note: Method 2,3,4 and 6 returns a collection of elements, so use [whole_number] to get the des...
ASP.NET MVC - Set custom IIdentity or IPrincipal
...ax.cs - Reading cookie and replacing HttpContext.User object, this is done by overriding PostAuthenticateRequest
protected void Application_PostAuthenticateRequest(Object sender, EventArgs e)
{
HttpCookie authCookie = Request.Cookies[FormsAuthentication.FormsCookieName];
if (authCookie != ...
Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio
...UNT([uid]) will produce the warning:
Warning: Null value is eliminated by an aggregate or other SET operation.
whilst being used with a left join, where the counted object does not exist.
Using COUNT(*) in this case would also render incorrect results, as you would then be counting the total ...
Entity Framework - Invalid Column Name '*_ID"
...t; set; }
[Required]
[StringLength(720)]
public string UpdatedBy { get; set; }
[ForeignKey("CategoryId")]
public virtual TourCategory TourCategory { get; set; }
}
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impr...
How to create a checkbox with a clickable label?
...at breaks the grid system and mobile responsiveness will be harder to come by
– Max
Nov 6 '14 at 7:59
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