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Fetch the row which has the Max value for a column

... This will retrieve all rows for which the my_date column value is equal to the maximum value of my_date for that userid. This may retrieve multiple rows for the userid where the maximum date is on multiple rows. select userid, my_date, ...
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Is the sizeof(some pointer) always equal to four?

... Pointers to member functions are a real pain. It is unfortunate that not all compilers does it like the Digital Mars C++ compiler, which return 4 in all cases. – dalle Feb 18 '09 at 15:21 ...
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What is a Proxy in Doctrine 2?

I just finished reading all the Doctrine 2 documentation, I started my own sandbox, I understood most of the principes, but there is still a question and I couldn't find any complete explanation in the doc. ...
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Qt events and signal/slots

... and handled by any instance of a QObject subclass, but they are especially relevant to widgets. This document describes how events are delivered and handled in a typical application. So events and signal/slots are two parallel mechanisms accomplishing the same things. In general, an eve...
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Android: Access child views from a ListView

... adapter. It might not be fully visible (and might not even be visible at all, depending on ListView's threshold of "visibility" before recycling a view that it considers is "scrolled out of view") – Joe Oct 31 '13 at 16:33 ...
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How and when to use ‘async’ and ‘await’

...he result of LongRunningOperationAsync can be done here //and now we call await on the task int result = await longRunningTask; //use the result Console.WriteLine(result); } public async Task<int> LongRunningOperationAsync() // assume we return an int from this long running...
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preferredStatusBarStyle isn't called

...llowed this thread to override -preferredStatusBarStyle , but it isn't called. Are there any options that I can change to enable it? (I'm using XIBs in my project.) ...
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Gradle build without tests

... Try: gradle assemble To list all available tasks for your project, try: gradle tasks UPDATE: This may not seem the most correct answer at first, but read carefully gradle tasks output or docs. Build tasks ----------- assemble - Assembles the outputs...
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Visual Studio 2005/2012: How to keep first curly brace on same line?

... C# In the Tools Menu click Options Click Show all Parameters (checkbox at the bottom left) (Show all settings in VS 2010) Text Editor C# Formatting New lines And there check when you want new lines with brackets Css: almost the same, but fewer options In the Tools...
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How to set entire application in portrait mode only?

...o be disabled while the application is running. How do I do it programmatically? 16 Answers ...