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Best way to check if object exists in Entity Framework?

What is the best way to check if an object exists in the database from a performance point of view? I'm using Entity Framework 1.0 (ASP.NET 3.5 SP1). ...
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Can hash tables really be O(1)?

... you're hashing ints or something else that fits in a machine word. That's what most theory on hashing assumes. – Thomas Ahle May 30 '14 at 12:40 ...
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Angular.js programmatically setting a form field to dirty

... user rmag, and what about angular 2? – user5260143 Nov 13 '16 at 12:12 add a comment  |  ...
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How do I detect whether a Python variable is a function?

...iner. Don't use types.FunctionType unless you have a very specific idea of what a function is. share | improve this answer | follow | ...
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Random hash in Python

What is the easiest way to generate a random hash (MD5) in Python? 9 Answers 9 ...
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How do you kill a Thread in Java?

...ed Thread.stop(). It goes into detail about why this was a bad method and what should be done to safely stop threads in general. The way they recommend is to use a shared variable as a flag which asks the background thread to stop. This variable can then be set by a different object requesting ...
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MySQL pagination without double-querying?

...want, and by "bullet-proof" I meant that there are no MySQL bugs hampering what SQL you can use. Unlike using SQL_CALC_FOUND_ROWS with ORDER BY and LIMIT, according to the bug I mentioned. – staticsan May 4 '09 at 4:30 ...
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How can I automatically deploy my app after a git push ( GitHub and node.js)?

... Hi, thank you a lot. What prevents Bob from executing my deployment script? – Advanced May 17 '13 at 13:07 16 ...
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How to $http Synchronous call with AngularJS

...e done, and then execute something once they're all complete. I don't know what your use case is, but that might be worth a look. Outside of that, if you're going to roll your own, more information about how to make synchronous and asynchronous ajax calls can be found here. I hope that is helpful....
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Joining three tables using MySQL

... This answer looks very similar to answers already given 5 years earlier. What about your answer do you feel is important, and missing from existing answers? – ToolmakerSteve Jan 21 '19 at 2:02 ...