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Is there a REAL performance difference between INT and VARCHAR primary keys?
...ng. Is using a natural key in for data consistency along side of the FK a common practice? My first thought was that the extra storage that would be required on large tables might not make it worthwhile. Any information is appreciated. FYI - I have a decent programming background but my SQL exper...
C++ Tuple vs Struct
...= std::tuple<int, int, double, std::string>;
We then use Celero to compare the performance of our simple struct and tuple. Below is the benchmark code and performance results collected using gcc-4.9.2 and clang-4.0.0:
std::vector<StructData> test_struct_data(const size_t N) {
std:...
Android: AsyncTask vs Service
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In some cases it is possible to accomplish the same task with either an AsyncTask or a Service however usually one is better suited to a task than the other.
AsyncTasks are designed for once-off time-consuming tasks that cannot be run of the UI thread. A com...
Is it possible to force Excel recognize UTF-8 CSV files automatically?
...(or choose correct language character identifier)
Change the Delimiter to comma
Select where to import to and Finish
This way the special characters should show correctly.
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What are best practices for REST nested resources?
...kes sense to me.
Just because employees are accessible under department:
company/{companyid}/department/{departmentid}/employees
Doesn't mean they can't be accessible under company too:
company/{companyid}/employees
Which would return employees for that company. It depends on what is needed b...
Should I use #define, enum or const?
...a flag kind of value which can have four values. Those four flags can be combined. Flags describe the records in database and can be:
...
When to use MongoDB or other document oriented database systems? [closed]
...e the meta-information of, too. Videos and vector-graphics don't share any common meta-information, etc. so I know, that MongoDB is perfect to store this unstructured data and keep it searchable.
...
How to split text without spaces into list of words?
...s the product of the probability of each individual word, and it's easy to compute it with dynamic programming. Instead of directly using the probability we use a cost defined as the logarithm of the inverse of the probability to avoid overflows.
The code
from math import log
# Build a cost dicti...
Detect all Firefox versions in JS
...to consider using feature-detection ala Modernizr, or a related tool, to accomplish what you need.
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How can I maintain fragment state when added to the back stack?
...e feeling I'm after the same thing as this question, but I've included a complete code sample to help root out the issue:
...