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Update Row if it Exists Else Insert Logic with Entity Framework
...tions on the most efficient way to implement "update row if it exists else insert" logic using Entity Framework?
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How to execute IN() SQL queries with Spring's JDBCTemplate effectivly?
I was wondering if there is a more elegant way to do IN() queries with Spring's JDBCTemplate. Currently I do something like that:
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How to record webcam and audio using webRTC and a server-based Peer connection
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You should definitely have a look at Kurento. It provides a WebRTC server infrastructure that allows you to record from a WebRTC feed and much more. You can also find some examples for the application you are planning here. It is really ea...
How do I use variables in Oracle SQL Developer?
Below is an example of using variables in SQL Server 2000.
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How to send a message to a particular client with socket.io
I'm starting with socket.io + node.js, I know how to send a message locally and to broadcast socket.broadcast.emit() function:- all the connected clients receive the same message.
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How do I find which transaction is causing a “Waiting for table metadata lock” state?
I am trying to perform some DDL on a table and SHOW PROCESSLIST results in a " Waiting for table metadata lock " message.
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How do I sort an NSMutableArray with custom objects in it?
What I want to do seems pretty simple, but I can't find any answers on the web. I have an NSMutableArray of objects, and let's say they are 'Person' objects. I want to sort the NSMutableArray by Person.birthDate which is an NSDate .
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Pandas aggregate count distinct
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That's it. pd.Series.nunique is what I couldn't find, well, couldn't get to work correctly. Pretty obvious in hindsight. Thanks!
– dave
Sep 1 '13 at 3:36
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What's the difference between belongs_to and has_one?
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They essentially do the same thing, the only difference is what side of the relationship you are on. If a User has a Profile, then in the User class you'd have has_one :profile and in the Profile class you'd have belongs_to :user. To determine who "has" th...
Best way to store date/time in mongodb
I've seen using strings, integer timestamps and mongo datetime objects.
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