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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.
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Eclipse, where to change the current debug line background?
Can anyone point me to the preferences page that has the setting of the DEBUG current line background color? I have changed almost all the colours to dark ones and still get annoyed by this almost white current line indicator while debugging (note that the current line indication in editing mode i...
How to get a list of file names in different lines
...
ls -1. From the help:
-1 list one file per line
Works on cygwin and FreeBSD, so it's probably not too GNU-specific.
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What’s the purpose of prototype? [duplicate]
...e;
}
The function does not have to be re-created each time; it exists in one place in the prototype. So when you call someAnimal.set_name("Ubu"); the this context will be set to someAnimal and (the one and only) set_name function will be called.
There is one advantage to using the first synta...
Tool to compare directories (Windows 7) [closed]
...t the downloads are hosted on SourceForge which cannot be trusted anymore. One of the many articles describing their fall from grace: howtogeek.com/218764/…
– Pooks
Aug 25 '15 at 7:43
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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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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...