大约有 30,000 项符合查询结果(耗时:0.0426秒) [XML]

https://stackoverflow.com/ques... 

What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]

...tf8_general_ci is fine only for Russian and Bulgarian subset of Cyrillic. Extra letters used in Belarusian, Macedonian, Serbian, and Ukrainian are sorted not well. The cost of utf8_unicode_ci is that it is a little bit slower than utf8_general_ci. But that’s the price you pay for correctness...
https://stackoverflow.com/ques... 

How to map a composite key with JPA and Hibernate?

...Integer levelStation; @Id private Integer confPathID; private String src; private String dst; private Integer distance; private Integer price; // getters, setters } The IdClass annotation maps multiple fields to the table PK. With EmbeddedId The class for the compo...
https://stackoverflow.com/ques... 

Differences between numpy.random and random.random in Python

...nd any evidence to the contrary). The numpy.random library contains a few extra probability distributions commonly used in scientific research, as well as a couple of convenience functions for generating arrays of random data. The random.random library is a little more lightweight, and should be fi...
https://stackoverflow.com/ques... 

In AngularJS, what's the difference between ng-pristine and ng-dirty?

...ss cognitive step to comprehend than !ng-hide. your brain needs to do that extra step and thus you more likely to introduce bugs – Damian Green Aug 20 '14 at 8:32 ...
https://stackoverflow.com/ques... 

How to create a responsive image that also scales up in Bootstrap 3

... put the .col class on the image will do the trick - however this gives it extra padding along with any other attributes associated with the class such as float left, however these can be cancelled by say for example a no padding class as an addition. ...
https://stackoverflow.com/ques... 

How can I switch themes in Visual Studio 2012

... For extra themes, including making VS 2012 look like VS 2010 see: http://visualstudiogallery.msdn.microsoft.com/366ad100-0003-4c9a-81a8-337d4e7ace05 shar...
https://stackoverflow.com/ques... 

Can I bind an array to an IN() condition?

... i think soulmerge is right. you'll have to construct the query-string. <?php $ids = array(1, 2, 3, 7, 8, 9); $inQuery = implode(',', array_fill(0, count($ids), '?')); $db = new PDO(...); $stmt = $db->prepare( 'SELECT * FROM table WHERE id IN(' . $inQuery . ')' )...
https://stackoverflow.com/ques... 

Performing Inserts and Updates with Dapper

...using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString)) { string insertQuery = @"INSERT INTO [dbo].[Customer]([FirstName], [LastName], [State], [City], [IsActive], [CreatedOn]) VALUES (@FirstName, @LastName, @State, @City, @IsActive...
https://stackoverflow.com/ques... 

How to find serial number of Android device?

... (TelephonyManager)myActivity.getSystemService(Context.TELEPHONY_SERVICE); String uid = tManager.getDeviceId(); getSystemService is a method from the Activity class. getDeviceID() will return the MDN or MEID of the device depending on which radio the phone uses (GSM or CDMA). Each device MUST ...
https://stackoverflow.com/ques... 

Why are preprocessor macros evil and what are the alternatives?

...can't be debugged. When you have a macro that translates to a number or a string, the source code will have the macro name, and many debuggers, you can't "see" what the macro translates to. So you don't actually know what is going on. Replacement: Use enum or const T For "function-like" macros,...