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With MySQL, how can I generate a column containing the record index in a table?
... @smhnaji MySQL requires that every "derived table" is given a name. I decided to call it "r" :) ... It has little purpose in this case, but you'd normally use it to reference attributes of the derived table, as if it was a real table.
– Daniel Vassallo
Feb 27...
Use HTML5 to resize an image before upload
...at I ended up doing and it worked great.
First I moved the file input outside of the form so that it is not submitted:
<input name="imagefile[]" type="file" id="takePictureField" accept="image/*" onchange="uploadPhotos(\'#{imageUploadUrl}\')" />
<form id="uploadImageForm" enctype="multipa...
Java: int array initializes with nonzero elements
...zeroing of allocated array.
This bug is placed in Oracle bug tracker (bug id 7196857). Unfortunately, I did not wait for any clarifications from Oracle about the following points. As I see, this bug is OS-specific: it absolutely reproducible on 64-bit Linux and Mac, but, as I see from comments, it ...
What do Clustered and Non clustered index actually mean?
...the case. SQL Server certainly doesn't guarantee that all data files are laid out in a contiguous physical area of disc and there is zero file system fragmentation. It isn't even true that a clustered index is in order within the data file. The degree to which this isn't the case is the degree of lo...
Javascript - Open a given URL in a new tab by clicking a button
...its as follows:
onclick="window.open(this.href,'popUpWindow','height=400,width=600,left=10,top=10,,scrollbars=yes,menubar=no'); return false;"
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How can a LEFT OUTER JOIN return more records than exist in the left table?
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SELECT Table1.Id, Table2.Id FROM Table1 LEFT OUTER JOIN Table2 ON Table1.Id=Table2.Id
Results:
1,null
2,2
2,2
3,null
4,null
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Mix Razor and Javascript code
...hting gets all sorts of confused. It highlights all the Razor code as invalid Syntax because it's stuck in Javascript mode I believe.
– Chev
Aug 10 '12 at 16:29
2
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How to get active user's UserDetails
...ustom User Object from the Database by some information (like the login or id) stored in the principal or
want to learn how a HandlerMethodArgumentResolver or WebArgumentResolver can solve this in an elegant way, or just want to an learn the background behind @AuthenticationPrincipal and Authenticat...
Proper way to initialize a C# dictionary with values?
... simple .NET 4.0 console application:
static class Program
{
static void Main(string[] args)
{
var myDict = new Dictionary<string, string>
{
{ "key1", "value1" },
{ "key2", "value2" }
};
Console.ReadKey();
}
}
Can you try ...
Apply CSS Style to child elements
I want to apply styles only to the table inside the DIV with a particular class:
8 Answers
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