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Entity Framework is Too Slow. What are my options? [closed]
...k at the SQL generated, use debuggers, pre-compile, take many extra steps, etc. i.e. waste a lot of time. No one says - Simplify! Everyone wants to comlicate things further by taking even more steps (wasting time).
A common sense approach would be not to use EF or LINQ at all. Use plain SQL. Th...
What is the correct way of using C++11's range-based for?
...gers,
but instances of a more complex class, with custom copy constructor, etc.
// A sample test class, with custom copy semantics.
class X
{
public:
X()
: m_data(0)
{}
X(int data)
: m_data(data)
{}
~X()
{}
X(const X& other)
: m_data(ot...
How to select rows that have current day's timestamp?
...t
WHERE DATE(timestamp) = CURDATE() --- using DATE(timestamp)
ORDER BY timestamp ;
Explain:
ID SELECT_TYPE TABLE TYPE POSSIBLE_KEYS KEY KEY_LEN REF
1 SIMPLE test ALL
ROWS FILTERED EXTRA
6671 100 Using where; Using filesort
It filters all (6671) rows and ...
Why are dashes preferred for CSS selectors / HTML attributes?
...ff you do with JavaScript these days, you'd want to use CSS Selectors for fetching elements from the DOM anyway, which makes the whole dot notation rather useless. Which one would you prefer?
var firstName = $('#first-name');
var firstName = document.querySelector('#first-name');
var firstName = do...
Valid to use (anchor tag) without href attribute?
...f this is that an <a> element without [href] won't be in the tabbing order by default.
The real question is whether the <a> element alone is an appropriate representation of a <button>. On a semantic level, there is a distinct difference between a link and a button.
A button is s...
Read Excel File in Python
...nded to the values string separated by a new line char.
The output column order is determined by the order of the column names in the FORMAT list.
In my code below the case of the column name in the FORMAT list is important. In the question above you've got 'Pincode' in your FORMAT list, but 'PinC...
PostgreSQL naming conventions
...table names vs. camel case, sequences, primary keys, constraints, indexes, etc...)
2 Answers
...
How to generate all permutations of a list?
... and above ONLY
First, import itertools:
import itertools
Permutation (order matters):
print list(itertools.permutations([1,2,3,4], 2))
[(1, 2), (1, 3), (1, 4),
(2, 1), (2, 3), (2, 4),
(3, 1), (3, 2), (3, 4),
(4, 1), (4, 2), (4, 3)]
Combination (order does NOT matter):
print list(itertools.c...
Solving “Who owns the Zebra” programmatically?
... It basically allows concluding of facts from statements made using First Order Logic. FOL is basically a more advanced form of propositional logic. If you decide you don't want to use Prolog, you could use a similar system of your own creation using a technique such as modus ponens to perform th...
Android Studio Multi-Windows for One Project
...t, but I want to have two separate windows, each with their own Title Bar, etc.
– ElectronicGeek
Mar 14 '14 at 16:03
1
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