大约有 47,000 项符合查询结果(耗时:0.0777秒) [XML]

https://stackoverflow.com/ques... 

How can I get column names from a table in SQL Server?

I want to query the name of all columns of a table. I found how to do this in: 20 Answers ...
https://stackoverflow.com/ques... 

How can I upgrade specific packages using pip and a requirements file?

...de Django to 1.2.4 - I was always finishing with 1.2.3 version, so I uninstalled Django with: <virtualenv>/bin/pip uninstall Django Then I removed <virtualenv>/build/Django directory and finally I installed the proper version with: <virtualenv>/bin/pip install Django ...
https://stackoverflow.com/ques... 

Understanding the Event Loop

...nd get executed. There's only 1 thread in the node process that will actually execute your program's JavaScript. However, within node itself, there are actually several threads handling operation of the event loop mechanism, and this includes a pool of IO threads and a handful of others. The key i...
https://stackoverflow.com/ques... 

Retain precision with double in Java

...red as a binary representation of a fraction and a exponent. More specifically, a double-precision floating point value such as the double type is a 64-bit value, where: 1 bit denotes the sign (positive or negative). 11 bits for the exponent. 52 bits for the significant digits (the fractional par...
https://stackoverflow.com/ques... 

Really weird eclipse keyboard behavior/bug?

I am using Helios on Mac Snow Leopard. I don't know why but all of a sudden my arrow keys and delete button start not working only on Eclipse (so Eclipse ignores them) but the rest of the buttons works just fine. There is no exception/error thrown anywhere on the screen. I don't exactly know how to ...
https://stackoverflow.com/ques... 

How to delete/create databases in Neo4j?

...s in the graph database Neo4j like in MySQL? Or, at least, how to delete all nodes and relationships of an existing graph to get a clean setup for tests, e.g., using shell commands similar to rmrel or rm ? ...
https://stackoverflow.com/ques... 

Can we instantiate an abstract class?

...that here: - Whenever a new class instance is created, memory space is allocated for it with room for all the instance variables declared in the class type and all the instance variables declared in each superclass of the class type, including all the instance variables that may be hidden....
https://stackoverflow.com/ques... 

Add a method breakpoint to all methods of a class in EclipseIDE

In Eclipse, is there a way you can set Method Breakpoints on all the methods of the class without going to individual methods? The motivation behind is that, any time a method gets hit, it would go to that method in debug mode. ...
https://stackoverflow.com/ques... 

Java - escape string to prevent SQL injection

...lace in java and am finding it very difficult to work with the the "replaceAll" string function. Ultimately I need a function that will convert any existing \ to \\ , any " to \" , any ' to \' , and any \n to \\n so that when the string is evaluated by MySQL SQL injections will be block...
https://stackoverflow.com/ques... 

Remove outline from select box in FF

... I found a solution, but it is mother of all hacks, hopefully it will serve as a starting point for other more robust solutions. The downside (too big in my opinion) is that any browser that doesn't support text-shadow but supports rgba (IE 9) won't render the text ...