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“Insert if not exists” statement in SQLite
...CT 1 FROM memos WHERE id = 5 AND text = 'text to insert');
If a record already contains a row where text is equal to 'text to insert' and id is equal to 5, then the insert operation will be ignored.
I don't know if this will work for your particular query, but perhaps it give you a hint on how to...
ObservableCollection Doesn't support AddRange method, so I get notified for each item added, besides
... End Sub
Private m_Action As NotifyCollectionChangedAction
Public ReadOnly Property Action() As NotifyCollectionChangedAction
Get
Return m_Action
End Get
End Property
Private m_Items As IList
Public ReadOnly Property Items() As IEnumerable(Of T)
...
How to articulate the difference between asynchronous and parallel programming?
...get this. The parallel tasks of rendering the different frames should be spread out across multiple CPUs/cores. That has nothing to do with the timing of the task completion, or whether that task blocks something else. It just means a bunch of CPUs will do it together and make the result available a...
Negative weights using Dijkstra's Algorithm
...o understand why Dijkstra's algorithm will not work with negative weights. Reading an example on Shortest Paths , I am trying to figure out the following scenario:
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Overwrite or override
...ommon used word is Override and it's not language-specific as you can also read from wikipedia: http://en.wikipedia.org/wiki/Method_overriding
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Difference between JAX-WS, Axis2 and CXF
...rison.htm
http://www.ibm.com/developerworks/java/library/j-jws11/
And, I read above links, its preety helpful for me. I hope it works for u too.
Thanks !
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What is the best way to paginate results in SQL Server
...hink of it as the subquery (inner query) returning a stream, which is then read until the outer WHERE clause is satisfied. How may rows are involved with that, depends entirely on the query, but the optimizer generally does a very good job on minimizing that number. Using the graphical execution pla...
Difference between abstraction and encapsulation?
...providing a generalization (say, over a set of behaviors).
Here's a good read: Abstraction, Encapsulation, and Information Hiding by Edward V. Berard of the Object Agency.
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What is an unsigned char?
...0 LSB comes first. Now Main Part . if i use printf("%d" , *p). printf will read first byte 11010010only the output is -46 but 11010010 is 210 so why does it print -46 . I am really confused i guess some char to integer promotion is doing something but i don't know.
– Suraj Jain...
Python Linked List
...t in Python" "In real world": describe the benefits for your example e.g., readability, performance or other "practical value" of your choosing). I've made a similar request in the past: in 8 years, zero links except for doubly linked lists used in Raymond Hettinger's ordered set recipe--perhaps, it...