大约有 31,400 项符合查询结果（耗时：0.0512秒） [XML]
Good MapReduce examples [closed]
...ibuted manner
Here is a wikipedia article explaining what map-reduce is all about
Another good example is Finding Friends via map reduce can be a powerful example to understand the concept, and
a well used use-case.
Personally, found this link quite useful to understand the concept
Copying th...
PostgreSQL: Drop PostgreSQL database through command line [closed]
...ype of activity is currently taking place against your database, including all idle processes.
SELECT * FROM pg_stat_activity WHERE datname='database name';
share
|
improve this answer
|
...
How do you effectively model inheritance in a database?
...s:
Table-Per-Type (TPT)
Each class has its own table. The base class has all the base class elements in it, and each class which derives from it has its own table, with a primary key which is also a foreign key to the base class table; the derived table's class contains only the different elements...
.Net picking wrong referenced assembly version
...r assembly you are using is referencing the old dll. Are you familiar with all of the other project references being used and do any of them have a reference to the Telerik dlls?
Can you put in a binding redirect in your web.config file like this?
<dependentAssembly>
<assemblyIdentity na...
The source was not found, but some or all event logs could not be searched
... approach for handling such issues is to register event log sources at installation time (under an administrator account), then assume that they exist at runtime, allowing any resulting exception to be treated as unexpected if a target event log source does not actually exist at runtime.
...
How to check if a string in Python is in ASCII?
...
def is_ascii(s):
return all(ord(c) < 128 for c in s)
share
|
improve this answer
|
follow
|
...
In Flux architecture, how do you manage Store lifecycle?
...
In a Flux app there should only be one Dispatcher. All data flows through this central hub. Having a singleton Dispatcher allows it to manage all Stores. This becomes important when you need Store #1 update itself, and then have Store #2 update itself based on both the Acti...
Exclude folders from Eclipse search
Is there a way to exclude certain folders (and all their subfolders) from searching within Eclipse?
6 Answers
...
Is it possible to execute code once before all tests run?
Basically I would like to tell MSTest to execute a bit of code before launching into a series of test runs, essentially what I would like to do is the same thing as sticking some code in Main() .
...
Unioning two tables with different number of columns
... I realized that this solution also works without having to list all the columns. So instead of Select Col1, Col2, Col3, Null as Col4, Null as Col5 from Table2, one can also do, Select *, Null as Col4, Null as Col5 from Table2.
– Pratik Patel
Sep 20 '...