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What scalability problems have you encountered using a NoSQL data store? [closed]
...ays drawbacks for our circumstances (e.g. missing/immature Java support).
Extra benefit of (ab)using MySQL - the bits of our model that do work relationally can be easily linked to our key/value store data.
Update: here's an example of how we represented text content, not our actual business domai...
Merging 2 branches together in GIT
...mits into master branch (4 in master + 2 in feature_branch = total 6) + an extra merge commit something like 'Merge branch 'feature_branch'' as the master is diverged.
If you really need to ignore these commits (those made in FB) and add the whole changes made in feature_branch as a single commit ...
Examples of GoF Design Patterns in Java's core libraries
...ognizeable by creational methods returning the instance itself)
java.lang.StringBuilder#append() (unsynchronized)
java.lang.StringBuffer#append() (synchronized)
java.nio.ByteBuffer#put() (also on CharBuffer, ShortBuffer, IntBuffer, LongBuffer, FloatBuffer and DoubleBuffer)
javax.swing.GroupLayout.G...
How does git store files?
... gc --aggressive uses value 250, which makes it run very slow, but provide extra compression for history data.
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What's the best way to send a signal to all members of a process group?
... And if you modify the format slightly and sort, you get to see all processes nicely grouped and beginning with (potentially) the group parent in each group: ps x -o "%r %p %y %x %c" | sort -nk1,2
– haridsv
Dec 3 '12 at 12:18
...
How do I set up a simple delegate to communicate between two view controllers?
...nto your SecondVC
protocol DataDelegate {
func sendData(data : String)
}
class ViewControllerB : UIViewController {
//Declare the delegate property in your SecondVC
var delegate : DataDelegate?
var data : String = "Send data to ViewControllerA."
over...
Does Python have “private” variables in classes?
...ass variables. In Java, nothing prevents you from doing the same if you really want to - after all, you can always edit the source of the class itself to achieve the same effect. Python drops that pretence of security and encourages programmers to be responsible. In practice, this works very nicely...
How can I use Guzzle to send a POST request in JSON?
...n Guzzle 6, you can do it like this: $client->post($url, ['body' => $string, 'headers' => ['Content-type' => 'application/json']]);
– marcovtwout
Apr 13 '17 at 6:41
...
What's the best practice for primary keys in tables?
...
Just an extra comment on something that is often overlooked. Sometimes not using a surrogate key has benefits in the child tables. Let's say we have a design that allows you to run multiple companies within the one database (maybe it...
What's wrong with foreign keys?
...documented
Reasons not to use Foreign Keys:
you are making the DB work extra on every CRUD operation because it has to check FK consistency. This can be a big cost if you have a lot of churn
by enforcing relationships, FKs specify an order in which you have to add/delete things, which can lead ...