I am looking at a practice test that doesn't have explanations about the correct answers. The question I'm confused about basically asks why the following SQL statement can never work:
SELECT oi.order_id, product_jd, order_date
FROM order_items oi JOIN orders o
USING(order_id);
The answer it gave was: "The statement would not execute ...
Hello Programming Experts,
To Nik,
I am facing same problem.I am generating two dropdown using ajax. But I can't access value of those dropdowns to another page. i cannot understand this code..what should i do to get value from those dropdowns....Where should i put this function?
Plz reply me at [email protected] php page is like ...
i need this System.Windows.Forms.DataVisualization.dll to run charting application in vs2008 windows application
...
In Java is there an equivalent to the C# "using" statement allowing to define a scope for an object:
using (AwesomeClass hooray = new AwesomeClass())
{
// Great code
}
This has probably already been asked but the keywords make it difficult to find a relevant question.
...
Hi,
I am developing an iPhone application that uploads videos to TwitVid using the library TwitVid-iPhone-OAuth3. I have selected this library since Twitter is shifting to OAuth mechanism of authentication.
1) Does this new library allows to upload without user-name and password parameters?
2) I am using the following steps for upload...
Hello everyone,
I have a SWF file which contains of an image (1keyframe) and also, it contains an AS3 file with the following codes:
var loader:Loader=new Loader();
var ur:URLRequest=new URLRequest("1.swf");
loader.load(ur);
addChild(loader);
so basically, i am trying to play the swf file (1.swf - an audio) while the image is being d...
Is it possinle to create an editor in c# without using office libraries which should includes all the features of a Dic file including tagging fascility.
please suggest?
...
I'm iterating over a ManageObjectCollection.( which is part of WMI interface).
However the important thing is, the following line of code. :
foreach (ManagementObject result in results)
{
//code here
}
The point is that ManageObject also implements IDisposable, so I would like to put "result" variable in a using block. Any idea o...
Hello,
Has anyone had an issue adding an existing project to a Silverlight business application and unable to use that new reference? I had an existing project folder that I am trying to import into a new app and I am unable to see any of the properties of the new project that I added.
using dt.Model;
The above gives me a red line ...
I am looking for iPhone-like "picker" control which can be used in the web.
Without using any third party control or Flash\silverlight. Only HTML,Style sheet,javascript\jquery etc. are allowed.
I will appreciate if anyone helps me.
Thanks in advance....
...
I'm learning REST to implement some Services with WCF. I implemented an example with a MemoryStream. Because MemoryStream is Disposable I wrapped it in a using. When I do this I sometimes can see the xml response in the browser (IE8) and sometimes it will just show me the following Errormessage:
The download of the specified resource h...
It seems that in most cases the C# compiler could call Dispose() automatically. Like most cases of the using pattern look like:
public void SomeMethod()
{
...
using (var foo = new Foo())
{
...
}
// Foo isn't use after here (obviously).
...
}
Since foo isn't used (that's a very simple detection) and si...
I like to adhere to StyleCop's formatting rules to make code nice and clear, but I've recently had a problem with one of its warnings:
All using directives must be placed
inside of the namespace.
My problem is that I have using directives, an assembly reference (for mocking file deletion), and a namespace to juggle in one of my t...
I have 2 apps and both integrate a package containing an activity. My problem is that when I launch any one app, and when it calls the activity inside the package, it shows me a dialog:
Complete action using:
App1
App2
I want to eliminate this dialog, so it just launches the activity from its own integrated package.
Currently, my A...
using (Font font3 = new Font("Arial", 10.0f),
font4 = new Font("Arial", 10.0f))
{
// Use font3 and font4.
}
I know that multiple objects of same type can be used inside a using clause.
Cant i use different types of objects inside the using clause?
Well i tried but although they were different names and different objec...
I have lots of code like this:
FileStream fs = File.Open(@"C:\Temp\SNB-RSS.xml", FileMode.Open);
using (XmlTextReader reader = new XmlTextReader(fs))
{
/* Some other code */
}
This gives me the following Code Analysis warning:
CA2000 : Microsoft.Reliability : In method 'SF_Tester.Run()', object 'fs' is not disposed along all ex...
Can anyone suggest a cleaner method to delete rows with a one-to-many relationship in one query?
This works, but I'm not very familiar with the using clause or delete, so I don't fully understand how it works.
DELETE FROM ip_record,
entry using ip_record
inner join entry
where ip_record.site_id = ?
...
$breakfast = array(
'rest_id' => $rest_id ,
'type' => 'Breakfast' ,
'value' => $bprice
);
$lunch = array(
'rest_id' => $rest_id ,
...
I have two tables. Lets say they look like this
Table Sports:
Column 1: id (integer)
Column 2: name (varchar 100)
Table Sport Articles:
Column 1: id (integer)
Column 2: data (text)
Column 3: sport (integer)
So what I want to do is select things from the sports articles. lets say I have the ID number already. all i want is the data an...
I really want to get this out of my head. Please see below code:
using (DataTable resultTable = DBUtility.GetSingleDBTableResult(connectionString, "SELECT * FROM MyDBTable")) {
List<string> resultsList = new List<string>();
foreach (DataRow dataRow in resultTable.Rows) {
resultsList.Add(dataRow[0].ToString());
}
...