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Use cases for NoSQL [closed]
NoSQL has been getting a lot of attention in our industry recently. I'm really interested in what peoples thoughts are on the best use-cases for its use over relational database storage. What should trigger a developer into thinking that particular datasets are more suited to a NoSQL solution. I'm p...
What exactly is a reentrant function?
...d term. It just mean "You can do that, without risk".
2. If a program can be safely executed concurrently, does it always mean that it is reentrant?
No.
For example, let's have a C++ function that takes both a lock, and a callback as a parameter:
#include <mutex>
typedef void (*callback)(...
How do I sort a dictionary by value?
I have a dictionary of values read from two fields in a database: a string field and a numeric field. The string field is unique, so that is the key of the dictionary.
...
Multiple line code example in Javadoc comment
...t:
Set<String> s;
System.out.println(s);
While omitting the @code block (or using a <code> tag) will result in HTML like this:
Set s;
System.out.println(s);
(For reference, Java SE 8 tag descriptions can be found here: Javadoc Tags)
...
How do I sort an NSMutableArray with custom objects in it?
What I want to do seems pretty simple, but I can't find any answers on the web. I have an NSMutableArray of objects, and let's say they are 'Person' objects. I want to sort the NSMutableArray by Person.birthDate which is an NSDate .
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How to implement an ordered, default dict? [duplicate]
I would like to combine OrderedDict() and defaultdict() from collections in one object, which shall be an ordered, default dict .
Is this possible?
...
Escape angle brackets in a Windows command prompt
I need to echo a string containing angle brackets (< and >) to a file on a Windows machine. Basically what I want to do is the following:
echo some string < with angle > brackets >>myfile.txt
...
How do I get the MIN() of two fields in Postgres?
Let's say I have a table like this:
3 Answers
3
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Multiple linear regression in Python
I can't seem to find any python libraries that do multiple regression. The only things I find only do simple regression. I need to regress my dependent variable (y) against several independent variables (x1, x2, x3, etc.).
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How to delete or add column in SQLITE?
I want to delete or add column in sqlite database
19 Answers
19
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