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How can I pair socks from a pile efficiently?
...ce comparison is not required.
Case 3: The number of combinations is not known in advance (general case).
We have to do comparison to check whether two socks come in pair. Pick one of the O(n log n) comparison-based sorting algorithms.
However in real life when the number of socks is relatively s...
Why is std::map implemented as a red-black tree?
...implementation". Each implementer chooses an implementation. As far as we know, they've all chose RB trees, so presumably this is either for performance or for ease of implementation/maintenance. As I said, the breakpoint for performance might not imply that they think there are more inserts/deletes...
Database, Table and Column Naming Conventions? [closed]
...ink how many c# developers hated the "var" keyword when it was introduced, now its the widely accepted way to define variables.
– Jason
Apr 10 '12 at 16:39
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Non-Relational Database Design [closed]
...ntation slides (slideshare) Graph Databases and the Future of Large-Scale Knowledge Management by Marko Rodriguez contains a very nice introduction to data design using a graph database as well.
Answering the specific questions from a graphdb point of view:
Alternate design: adding relationships b...
Difference between sh and bash
...we often use /bin/sh and /bin/bash . I usually use bash , but I don't know what's the difference between them.
12 Answ...
How to generate an entity-relationship (ER) diagram using Oracle SQL Developer
... select New Relational Model to open a blank model diagram panel. You’re now starting at the same place as someone who’s using the standalone Oracle SQL Developer Data Modeler.
Importing Your Data Dictionary
Importing Your Data Dictionary
A design in Oracle SQL Developer Data Modeler...
Entity Framework and Connection Pooling
... use this approach but in most situation this is enough.
If you want to know what impact has single object context for WPF / WinForm application check this article. It is about NHibernate Session but the idea is same.
Edit:
When you use EF it by default loads each entity only once per context. T...
Read/write to Windows registry using Java
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I know this question is old, but it is the first search result on google to "java read/write to registry". Recently I found this amazing piece of code which:
Can read/write to ANY part of the registry.
DOES NOT USE JNI.
DOES...
Why is require_once so bad to use?
...ret the code might even make it marginally slower but, that said, I don't know how thorough the internal method is. It might do extra work to ensure no duplicates.
– Oli
Oct 9 '08 at 9:37
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Difference between Visual Basic 6.0 and VBA
...e is something like a Printer object in VB6 that's not in VBA and I don't know why that is. Otherwise, I believe there are no differences in the base languages.
– Dick Kusleika
Jun 14 '09 at 21:39
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