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What's wrong with foreign keys?
... get Orphaned Rows
you can get nice "on delete cascade" behavior, automatically cleaning up tables
knowing about the relationships between tables in the database helps the Optimizer plan your queries for most efficient execution, since it is able to get better estimates on join cardinality.
FKs giv...
Moving from CVS to Git: $Id$ equivalent?
... for example, you packaged a version file with the source (or even rewrote all the content for distribution) to show that number. Let's say that packaged version was 2.2-12-g6c4ae7a (not a release, but a valid version).
You can now see exactly how far behind you are (4 commits), and you can see exa...
how does array[100] = {0} set the entire array to 0?
...se an empty initializer list, causing the compiler to aggregate-initialize all of the elements of the array:
char array[100] = {};
As for what sort of code the compiler might generate when you do this, take a look at this question: Strange assembly from array 0-initialization
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How to define custom exception class in Java, the easiest way?
...nstructors, you need to define the one taking a String in your class. Typically you use super(message) in your constructor to invoke your parent constructor. For example, like this:
public class MyException extends Exception {
public MyException(String message) {
super(message);
}
}...
How to create UILabel programmatically using Swift?
How do I create a UILabel programmatically using Swift in Xcode 6?
12 Answers
12
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Adding external library in Android studio
...nspecting.... But there are docs available : developer.android.com/sdk/installing/studio-build.html
– malcubierre
Sep 2 '14 at 6:28
26
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How to create directory automatically on SD card
...ollowing location
FileOutputStream fos = new FileOutputStream("/sdcard/Wallpaper/"+fileName);
but I'm getting the exception java.io.FileNotFoundException
However, when I put the path as "/sdcard/" it works.
...
CSV in Python adding an extra carriage return, on Windows
... best approach. For example, it doesn't work on Python 3 unless you encode all of your inputs to the CSV writer. Also, it doesn't address the issue if the script wants to use sys.stdout as the stream.
I suggest instead setting the 'lineterminator' attribute when creating the writer:
import csv
imp...
Calculate the date yesterday in JavaScript
...is would fail as getDate returns the day of the month (eg: 1 - 31) but actually setDate(0) sets the date to the last day of the previous month. Does this work across all browsers though?
– Drew Noakes
Mar 21 '14 at 14:19
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how to get request path with express req object
..., and req.path could be missing mounting points depending upon where it's called. expressjs.com/en/api.html#req.originalUrl
– Christian Davis
Jul 21 '17 at 19:06
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