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Strings as Primary Keys in SQL Database [closed]
...m not very familiar with databases and the theories behind how they work. Is it any slower from a performance standpoint (inserting/updating/querying) to use Strings for Primary Keys than integers?
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Android ListView not refreshing after notifyDataSetChanged
My ListFragment code
11 Answers
11
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What are the best practices for SQLite on Android?
...eletes and reads are generally OK from multiple threads, but Brad's answer is not correct. You have to be careful with how you create your connections and use them. There are situations where your update calls will fail, even if your database doesn't get corrupted.
The basic answer.
The SqliteOp...
How to implement the factory method pattern in C++ correctly
There's this one thing in C++ which has been making me feel uncomfortable for quite a long time, because I honestly don't know how to do it, even though it sounds simple:
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Which HTML Parser is the best? [closed]
...on it here because I think it will do what you are after.
Its party trick is a CSS selector syntax to find elements, e.g.:
String html = "<html><head><title>First parse</title></head>"
+ "<body><p>Parsed HTML into a doc.</p></body></html&g...
Is there a query language for JSON?
Is there a (roughly) SQL or XQuery-like language for querying JSON?
22 Answers
22
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What is the difference between “git branch” and “git checkout -b”?
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edited Sep 7 at 3:23
Patrick Allaert
1,5551616 sil...
Pickle or json?
I need to save to disk a little dict object whose keys are of the type str and values are int s and then recover it . Something like this:
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How to get the current directory of the cmdlet being executed
This should be a simple task, but I have seen several attempts on how to get the path to the directory where the executed cmdlet is located with mixed success. For instance, when I execute C:\temp\myscripts\mycmdlet.ps1 which has a settings file at C:\temp\myscripts\settings.xml I would like to ...
When would you use delegates in C#? [closed]
...t handlers (for GUI and more)
Starting threads
Callbacks (e.g. for async APIs)
LINQ and similar (List.Find etc)
Anywhere else where I want to effectively apply "template" code with some specialized logic inside (where the delegate provides the specialization)
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