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Why do you need to create a cursor when querying a sqlite database?
I'm completely new to Python's sqlite3 module (and SQL in general for that matter), and this just completely stumps me. The abundant lack of descriptions of cursor objects (rather, their necessity) also seems odd.
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How to create default value for function argument in Clojure
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A function can have multiple signatures if the signatures differ in arity. You can use that to supply default values.
(defn string->integer
([s] (string->integer s 10))
([s base] (Integer/parseInt s base)))
Note t...
Rails has_and_belongs_to_many migration
I have two models restaurant and user that I want to perform a has_and_belongs_to_many relationship.
4 Answers
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What does principal end of an association means in 1:1 relationship in Entity framework
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In one-to-one relation one end must be principal and second end must be dependent. Principal end is the one which will be inserted first and which can exist without the dependent one. Dependent end is the one which must be inserted after the principal becau...
What is dynamic programming? [closed]
...ith dynamic programming, you store your results in some sort of table generally. When you need the answer to a problem, you reference the table and see if you already know what it is. If not, you use the data in your table to give yourself a stepping stone towards the answer.
The Cormen Algorithms ...
Can I find out the return value before returning while debugging in Intellij?
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There seems to be a couple ways you can do this. The first one involves setting up the breakpoint on the method signature, in your case you would setup a breakpoint on Object method(){ . This will allow you to watch for the entrance and exit of...
Difference between Lookup() and Dictionary(Of list())
I'm trying to wrap my head around which data structures are the most efficient and when / where to use which ones.
6 Answer...
How to use __doPostBack()
I'm trying to create an asyncrhonous postback in ASP.NET using __doPostBack() , but I have no idea how to do it. I want to use vanilla JavaScript.
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Scrollable Menu with Bootstrap - Menu expanding its container when it should not
I tried this method ( their fiddle ) to enable scrollable menu with Bootstrap, but with that approach, the scrollable menu expands its container -- fiddle -- the non-scrollable menu, correctly, does not do this.
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Cancellation token in Task constructor: why?
Certain System.Threading.Tasks.Task constructors take a CancellationToken as a parameter:
4 Answers
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