大约有 47,000 项符合查询结果(耗时:0.0534秒) [XML]

https://stackoverflow.com/ques... 

Should each and every table have a primary key?

... Just add it, you will be sorry later when you didn't (selecting, deleting. linking, etc) share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Calculate text width with JavaScript

...er, div in this case, does not have any other styles applied to it via css selection rules that you may not be cognizant of at the time. Strip all relevant styles from the container before applying the ones you care about before measuring. – Jason Bunting Sep 2...
https://stackoverflow.com/ques... 

How do I drop table variables in SQL-Server? Should I even do this?

...4' SET @SQL = 'DROP TABLE dbo.' + QUOTENAME(@tablename) + ''; IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(@tablename) AND type in (N'U')) EXEC sp_executesql @SQL; Works fine on SQL Server 2014 Christophe ...
https://stackoverflow.com/ques... 

Can I record/play macros in Visual Studio 2012/2013/2015/2017/2019?

... external tool to Visual Studio: open Tools/External Tools add: Sublime, select the exe and use these arguments: $(ItemPath):$(CurLine):$(CurCol) (also move it to the top as this makes the next step easier, otherwise remember its position) then go to customize/Keyboard, search for Tools.ExternalCo...
https://stackoverflow.com/ques... 

Why should weights of Neural Networks be initialized to random numbers? [closed]

...imization algorithms such as stochastic gradient descent use randomness in selecting a starting point for the search and in the progression of the search. The progression of the search or learning of a neural network is known as convergence. Discovering a sub-optimal solution or local optima result ...
https://stackoverflow.com/ques... 

App store link for “rate/review this app”

... On iOS 7 this is taking me to the store page, but does not select the review tab. – devios1 Oct 7 '13 at 8:40 40 ...
https://stackoverflow.com/ques... 

Visual Studio, Find and replace, regex

... You need to select both Match Case and Regular Expressions for regex expressions with case. Else [a-z] won't work. share | improve this...
https://stackoverflow.com/ques... 

When/Why to use Cascading in SQL Server?

...alking about to restrict all data accesses to SPs, or at the least all but Select. See my answer under stackoverflow.com/questions/1171769/… – Cruachan May 29 '10 at 9:32 ...
https://stackoverflow.com/ques... 

Parse a URI String into Name-Value Collection

... What about the URL decoding described in the selected answer? – Clint Eastwood Jun 5 '14 at 20:38 7 ...
https://stackoverflow.com/ques... 

SQLite Concurrent Access

... If most of those concurrent accesses are reads (e.g. SELECT), SQLite can handle them very well. But if you start writing concurrently, lock contention could become an issue. A lot would then depend on how fast your filesystem is, since the SQLite engine itself is extremely fast...