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Which SQL query is faster? Filter on Join criteria or Where clause?
...ause it reduces the result set at the soonest possible moment, but I don't know for sure.
9 Answers
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MySQL: How to copy rows, but change a few fields?
I have a large number of rows that I would like to copy, but I need to change one field.
6 Answers
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How do you set the Content-Type header for an HttpClient request?
...y this is failing. AddWithoutValidation as suggested by Robert Levy may work, but you can also set the content type when creating the request content itself (note that the code snippet adds application/json in two places-for Accept and Content-Type headers):
HttpClient client = new HttpClient();
cli...
htmlentities() vs. htmlspecialchars()
... encoded. The choices are everything (entities) or "special" characters, like ampersand, double and single quotes, less than, and greater than (specialchars).
I prefer to use htmlspecialchars whenever possible.
For example:
echo htmlentities('<Il était une fois un être>.');
// ...
favicon.png vs favicon.ico - why should I use PNG instead of ICO?
...
Answer replaced (and turned Community Wiki) due to numerous updates and notes from various others in this thread:
ICOs and PNGs both allow full alpha channel based transparency
ICO allows for backwards compatibility to older browsers (e.g. IE6)
PNG probably has b...
How to do Base64 encoding in node.js?
...
Buffers can be used for taking a string or piece of data and doing base64 encoding of the result. For example:
> console.log(Buffer.from("Hello World").toString('base64'));
SGVsbG8gV29ybGQ=
> console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64'...
What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?
...Dec 27 '18 at 16:51
Andrew Tobilko
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answered Dec 24 '12 at 19:36
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Truly understanding the difference between procedural and functional
...ons as values.
Let's consider an analogy with "regular" values. We can take two integer values and combine them using the + operator to obtain a new integer. Or we can multiply an integer by a floating point number to get a floating point number.
In functional programming, we can combine two fun...
android View not attached to window manager
...e on a screen orientation change, the activity finished before the AsyncTask with the progress dialog completed. I seemed to resolve this by setting the dialog to null onPause() and then checking this in the AsyncTask before dismissing.
@Override
public void onPause() {
super.onPause();
i...
What does “SyntaxError: Missing parentheses in call to 'print'” mean in Python?
...nt statement:
print "Hello, World!"
The statement above does not work in Python 3. In Python 3 you need to add parentheses around the value to be printed:
print("Hello, World!")
“SyntaxError: Missing parentheses in call to 'print'” is a new error message that was added in Python 3.4....