大约有 48,000 项符合查询结果(耗时:0.0648秒) [XML]

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Is there a way to loop through a table variable in TSQL without using a cursor?

... — set based operations will perform faster in every case I can think of and will normally use simpler code. Depending on your data it may be possible to loop using just SELECT statements as shown below: Declare @Id int While (Select Count(*) From ATable Where Processed = 0) > 0 Begin Se...
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Twitter image encoding challenge [closed]

... Alright, here's mine: nanocrunch.cpp and the CMakeLists.txt file to build it using CMake. It relies on the Magick++ ImageMagick API for most of its image handling. It also requires the GMP library for bignum arithmetic for its string encoding. I based my solu...
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FileSystemWatcher Changed event is raised twice

I have an application where I am looking for a text file and if there are any changes made to the file I am using the OnChanged eventhandler to handle the event. I am using the NotifyFilters.LastWriteTime but still the event is getting fired twice. Here is the code. ...
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Random data in Unit Tests?

...a coworker who writes unit tests for objects which fill their fields with random data. His reason is that it gives a wider range of testing, since it will test a lot of different values, whereas a normal test only uses a single static value. ...
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How to declare an array in Python?

...t can hold a heterogenous collection of objects (their types do not matter and can be freely mixed). This should not be confused with the array module, which offers a type closer to the C array type; the contents must be homogenous (all of the same type), but the length is still dynamic. ...
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What is a NullReferenceException, and how do I fix it?

I have some code and when it executes, it throws a NullReferenceException , saying: 28 Answers ...
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What is the difference between required and ng-required?

What is the difference between required and ng-required (form validation)? 3 Answers ...
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Difference between $state.transitionTo() and $state.go() in Angular ui-router

In AngularJS, I see sometimes we use $state.transitionTo() and sometimes we use $state.go() . Can anyone tell me how they differ and when one should be used over the other? ...
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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly

I have a dataframe with ~300K rows and ~40 columns. I want to find out if any rows contain null values - and put these 'null'-rows into a separate dataframe so that I could explore them easily. ...
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TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes

... @Bridge Not sure I understand, but this means that TINYTEXT can get up to 255 characters, am I right??? – ltdev May 27 '14 at 13:19 ...