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How to keep Maven profiles which are activeByDefault active even if another profile gets activated?
...
One trick is to avoid activeByDefault, and instead activate the profile by the absence of a property, eg:
<profiles>
<profile>
<id>firstProfile</id>
<activation>
<property>...
What is the difference between partitioning and bucketing a table in Hive ?
...ntry or department . For a faster query response Hive table can be PARTITIONED BY (country STRING, DEPT STRING). Partitioning tables changes how Hive structures the data storage and Hive will now create subdirectories reflecting the partitioning structure like
.../employees/country=ABC/DEPT=XYZ.
...
how can I see what ports mongo is listening on from mongo shell?
... will give you all the arguments passed on the command line (argv) and the ones from the config file (parsed) and you can infer the ports mongod is listening based on that information. Here's an example:
db.serverCmdLineOpts()
{
"argv" : [
"./mongod",
"-replSet",
"test"...
How to prevent text in a table cell from wrapping
Does anyone know how I can prevent the text in a table cell from wrapping? This is for the header of a table, and the heading is a lot longer than the data under it, but I need it to display on only one line. It is okay if the column is very wide.
...
entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
... @Maritim it depends on the usage. In Web Applications, its typically one roundtrip. In Desktop Applications, you might also use one per Form (what ever, it just represents one unit of work) per Thread (because DbContext is not guaranteed to be threadsafe).
– LuckyLikey
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Best way to organize jQuery/JavaScript code (2013) [closed]
...ry is available.
This also has a hidden gem: the library loading will be done the second the DOM is ready, not before. This no longer halts load-up of your page!
Step 2: Modularize
See the wireframe? I have two ad units. They'll most likely have shared event listeners.
Your task in this step is ...
Why not use HTTPS for everything?
...snail-mail post in a tamper-proof opaque envelope by Registered Mail? Someone from the Post Office would always have personal custody of it, so you could be pretty sure that no one is snooping on your mail. Obviously, the answer is that while some mail is worth the expense, most mail isn't. I don...
Why is spawning threads in Java EE container discouraged?
One of the first things I've learned about Java EE development is that I shouldn't spawn my own threads inside a Java EE container. But when I come to think about it, I don't know the reason.
...
Rails “validates_uniqueness_of” Case Sensitivity
...t."
See also this programmer's experience with validates_uniqueness_of.
One way this commonly happens is accidental double-submissions from a web page when creating a new account. This is a hard one to solve because what the user will get back is the second (ugly) error and it will make them thi...
Is DateTime.Now the best way to measure a function's performance?
...is quite a bit slower than DateTime.UtcNow due to the work that has to be done with timezones, DST and such.
DateTime.UtcNow typically has a resolution of 15 ms. See John Chapman's blog post about DateTime.Now precision for a great summary.
Interesting trivia: The stopwatch falls back on DateTime...