大约有 11,000 项符合查询结果（耗时：0.0352秒） [XML]
A migration to add unique constraint to a combination of columns
What I need is a migration to apply unique constraint to a combination of columns. i.e. for a people table, a combination of first_name , last_Name and Dob should be unique.
...
How to bring back “Browser mode” in IE11?
...he old question applies only to IE11 preview; browser mode had returned in final release of IE11. But there is a catch: it is next to useless, because it does not emulate conditional comments. For example, if you use them to enable HTML5 support in legacy IEs, you will no longer be able to debug you...
Unit Testing C Code [closed]
...written in straight C. It was an existing project that the company I work for had taken over. I have become quite accustomed to writing unit tests in Java using JUnit but was at a loss as to the best way to write unit tests for existing code (which needed refactoring) as well as new code added to ...
TCP: can two different sockets share a port?
This might be a very basic question but it confuses me.
5 Answers
5
...
KnockOutJS - Multiple ViewModels in a single View
...
If they all need to be on the same page, one easy way to do this is to have a master view model containing an array (or property list) of the other view models.
masterVM = {
vmA : new VmA(),
vmB : new VmB(),
vmC :...
Why no love for SQL? [closed]
...eard a lot lately that SQL is a terrible language, and it seems that every framework under the sun comes pre-packaged with a database abstraction layer.
...
When to use a key/value store such as Redis instead/along side of a SQL database?
...read great things about key/value stores such as Redis but I can't seem to figure out when it's time to use it in an application.
...
How Pony (ORM) does its tricks?
Pony ORM does the nice trick of converting a generator expression into SQL. Example:
1 Answer
...
How to properly compare two Integers in Java?
I know that if you compare a boxed primitive Integer with a constant such as:
10 Answers
...
How exactly does a generator comprehension work?
What does generator comprehension do? How does it work? I couldn't find a tutorial about it.
6 Answers
...