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Meaning of @classmethod and @staticmethod for beginner? [duplicate]
...ent constructors allow easy API creation such as Date.from_json, Date.from_sql, Date.from_file, etc.
– DarrylG
May 28 at 19:53
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What is polymorphism, what is it for, and how is it used?
...ke an import file) and then determining what type it is (Excel, CSV, YAML, SQL, etc. etc.). To do this one would need some sort of factory class for Class_Excel, Class_CSV to be called, or have a Reader class called. Either way, some sort of iterative if/then/else is going to have to be stored som...
Is .NET/Mono or Java the better choice for cross-platform development? [closed]
...letion (intellisense), Git/Subversion integration, support for unit tests, SQL integration, debugging, easy refactoring, and assembly browsing with on-the-fly decompilation. It is wonderful to use the same environment for everything from server-side web to mobile apps.
Issue: Compatibility across p...
Difference between timestamps with/without time zone in PostgreSQL
Are timestamp values stored differently in PostgreSQL when the data type is WITH TIME ZONE versus WITHOUT TIME ZONE ? Can the differences be illustrated with simple test cases?
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How to validate an email address using a regular expression?
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@MatthewLock: No. You need to escape SQL queries (or, better yet, use parameters). Sanitization is not a proper defense.
– SLaks
Mar 2 '16 at 14:49
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What's the fundamental difference between MFC and ATL?
...anged drastically to focus on Internet Explorer, Windows Server, IIS, ASP, SQL Server, COM/DCOM in Distributed Transaction Server. So the Document Linking and Embedding was no longer a high priority.]
The huge footprint of MFC made it impossible for them to dump, so it still evolves slowly. Templ...
Why do I need an IoC container as opposed to straightforward DI code? [closed]
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I'm a fan of declarative programming (look at how many SQL questions I answer), but the IoC containers I've looked at seem too arcane for their own good.
...or perhaps the developers of IoC containers are incapable of writing clear documentation.
...or else both are true to o...
Why does ReSharper tell me “implicitly captured closure”?
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For Linq to Sql queries, you may get this warning. The lambda's scope may outlive the method due to the fact that the query is often actualized after the method is out of scope. Depending on your situation, you may want to actualize the ...
Why were pandas merges in python faster than data.table merges in R in 2012?
...ta.table is literally just the sort order (similar to a clustered index in SQL; i.e., that's how the data is ordered in RAM). On the list is to add secondary keys, for example.
In summary, the glaring speed difference highlighted by this particular two-character-column test with over 10,000 unique ...
Is there a MySQL option/feature to track history of changes to records?
I've been asked if I can keep track of the changes to the records in a MySQL database. So when a field has been changed, the old vs new is available and the date this took place. Is there a feature or common technique to do this?
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