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SQL Server IN vs. EXISTS Performance

...l quit looking as the condition has proved true. With IN, it will collect all the results from the sub-query before further processing. share | improve this answer | follow ...
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What is the Linux equivalent to DOS pause?

... Usually it's a better idea to ask for a specific key like enter, space or Y. "ANY" can be confusing to some users, there is a TAB-key so why no ANY-key and for sure there are keys that are potentially dangerous like ESCAPE, CTRL...
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Is it possible to decrypt MD5 hashes?

...gorithms), it is a one way hash function. Much of the original data is actually "lost" as part of the transformation. Think about this: An MD5 is always 128 bits long. That means that there are 2128 possible MD5 hashes. That is a reasonably large number, and yet it is most definitely finite. And y...
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Why do some claim that Java's implementation of generics is bad?

I've occasionally heard that with generics, Java didn't get it right. (nearest reference, here ) 13 Answers ...
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Razor HtmlHelper Extensions (or other namespaces for views) Not Found

... Since the Beta, Razor uses a different config section for globally defining namespace imports. In your Views\Web.config file you should add the following: <configSections> <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSe...
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How do you create a yes/no boolean field in SQL server?

... The BIT datatype is generally used to store boolean values (0 for false, 1 for true). share | improve this answer | follow ...
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Getting the array length of a 2D array in Java

... Unrelated question about your answer. What is the technique/method called where you put "{...};" after the object definition. As a new developer I keep seeing this more and more. – user432209 Oct 22 '10 at 19:27 ...
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Blocks and yields in Ruby

...trary segments of code. When a method expects a block, it invokes it by calling the yield function. This is very handy, for instance, to iterate over a list or to provide a custom algorithm. Take the following example: I'm going to define a Person class initialized with a name, and provide a ...
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How to drop SQL default constraint without knowing its name?

...llowing script will generate the command to drop the constraint and dynamically execute it. declare @schema_name nvarchar(256) declare @table_name nvarchar(256) declare @col_name nvarchar(256) declare @Command nvarchar(1000) set @schema_name = N'MySchema' set @table_name = N'Department' set @col_...
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What difference does .AsNoTracking() make?

I have a question regarding the .AsNoTracking() extension, as this is all quite new and quite confusing. 6 Answers ...