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Possible to perform cross-database queries with PostgreSQL?
...u need to do this in a pre-2013 Postgres installation, there is a function called dblink.
I've never used it, but it is maintained and distributed with the rest of PostgreSQL. If you're using the version of PostgreSQL that came with your Linux distro, you might need to install a package called post...
Java Ordered Map
...effectively returns a LinkedHashSet which reflects the order of your put() calls. Note that repeated calls to put() for the same key will not change the order unless you remove() the key beforehand.
– Glenn Lawrence
Mar 3 '15 at 3:29
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Create and append dynamically
I am trying to create a <div> dynamically, with an appended <div> inside. I have this so far which works:
9...
Check Whether a User Exists
...level boolean handling in bash is in my opinion less than clear and I typically avoid implicit boolean inferences in my code. The following make interesting reading and interestingly both favour 0 = true and <not 0> = false for bash purposes, and while not de facto, align with the variable na...
How can I reverse a NSArray in Objective-C?
...e complexity of the sort algorithm is (best case O(n*logn)?, but it's also calling indexOfObject, which is probably O(n). With the sort, that could be O(n^2*logn) or something. Not good!
– Joseph Humfrey
Apr 8 '14 at 9:32
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How Pony (ORM) does its tricks?
...tecode instructions one-by-one.
For each instruction the decompiler object calls its own method.
The name of this method is equal to the name of current bytecode instruction.
When Python calculates an expression, it uses stack, which stores an intermediate
result of calculation. The decompiler obje...
How to get the next auto-increment id in mysql
... Thanks for the first two options.. But the third is just number two called from PHP.. Not sure what makes that faster on large databases...
– Gerard ONeill
Feb 12 '16 at 15:26
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Drawing a line/path on Google Maps
... help. At last I could draw a line on the map.
This is how I done it:
/** Called when the activity is first created. */
private List<Overlay> mapOverlays;
private Projection projection;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
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When should I use uuid.uuid1() vs. uuid.uuid4() in python?
...s reading. uuid1 is "more unique", while uuid4 is more anonymous. So basically use uuid1 unless you have a reason not to. @mark ransom: Awesome answer, didn't come up when I searched for uuid1/uuid4. Straight from the horse's mouth, it seems.
– rocketmonkeys
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unobtrusive validation not working with dynamic content
...trusive jquery validation to work with a partial view that is loaded dynamically through an AJAX call.
7 Answers
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