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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?
10 Answers...
How do I find the most recent git commit that modified a file?
I want to find the most recent commit that modified a source file.
6 Answers
6
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What is `mt=8` in iTunes links for the App Store?
Does anyone know the significance of the mt parameter in App Store Links?
8 Answers
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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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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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When to use EntityManager.find() vs EntityManager.getReference() with JPA
I have come across a situation (which I think is weird but is possibly quite normal) where I use the EntityManager.getReference(LObj.getClass(), LObj.getId()) to get a database entity and then pass the returned object to be persisted in another table.
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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 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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