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Difference between EXISTS and IN in SQL?
What is the difference between the EXISTS and IN clause in SQL?
21 Answers
21
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@RequestParam in Spring MVC handling optional parameters
Is it possible for a Spring controller to handle both kind of requests?
3 Answers
3
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JOIN queries vs multiple queries
Are JOIN queries faster than several queries? (You run your main query, and then you run many other SELECTs based on the results from your main query)
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How to implement the activity stream in a social network
I'm developing my own social network, and I haven't found on the web examples of implementation the stream of users' actions... For example, how to filter actions for each users? How to store the action events? Which data model and object model can I use for the actions stream and for the actions it...
Maven Could not resolve dependencies, artifacts could not be resolved
This is supposed to be a working project from my friend. He demonstrated the project right in front of me, and then I copied the project, imported it as an existing maven project (I'm using m2eclipse plugin).
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How to clear a notification in Android
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Use the following code to cancel a Notification:
NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.cancel(NOTIFICATION_ID);
In this code there is alway th...
How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn't cre
I'm seeing the following exception in crash logs:
22 Answers
22
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Select Multiple Fields from List in Linq
In ASP.NET C# I have a struct:
10 Answers
10
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Linq to SQL how to do “where [column] in (list of values)”
...a function where I get a list of ids, and I need to return the a list matching a description that is associated with the id. E.g.:
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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
I am getting this error when I GetById() on an entity and then set the collection of child entities to my new list which comes from the MVC view.
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