大约有 47,000 项符合查询结果（耗时：0.0481秒） [XML]
How do I explicitly specify a Model's table-name mapping in Rails?
I have a Model class called Countries and I want it to map to a DB table called 'cc'.
2 Answers
...
Check that Field Exists with MongoDB
So I'm attempting to find all records who have a field set and isn't null.
4 Answers
4...
Rails filtering array of objects by attribute value
So I perform a query to the db and I have a complete array of objects:
5 Answers
5
...
ROW_NUMBER() in MySQL
Is there a nice way in MySQL to replicate the SQL Server function ROW_NUMBER() ?
24 Answers
...
A list of indices in MongoDB?
Is there a way to see a list of indices on a collection in mongodb in shell? i read through http://www.mongodb.org/display/DOCS/Indexes but i dont see anything
...
ipython notebook clear cell output in code
In a iPython notebook, I have a while loop that listens to a Serial port and print the received data in real time.
3 Answ...
What does dot (.) mean in a struct initializer?
I don't understand this C syntax well. I can't even search because I don't know the syntax's name. What's that?
4 Answers
...
How do I configure a Python interpreter in IntelliJ IDEA with the PyCharm plugin?
There is a tutorial in the IDEA docs on how to add a Python interpreter in PyCharm, which involves accessing the "Project Interpreter" page. Even after installing the Python plugin, I don't see that setting anywhere.
...
Difference between repository and service?
What's the difference between a repository and a service? I don't seem to grasp it.
3 Answers
...
How do you write a migration to rename an ActiveRecord model and its table in Rails?
I'm terrible at naming and realize that there are a better set of names for my models in my Rails app. Is there any way to use a migration to rename a model and its corresponding table?
...