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STAThread and multithreading
...ading is a COM concept; if you're not using COM, and none of the APIs you call use COM "under the covers", then you don't need to worry about apartments.
If you do need to be aware of apartments, then the details can get a little complicated; a probably-oversimplified version is that COM objects ta...
Implementation difference between Aggregation and Composition in Java
...e) and aggregation as a weak association (a Car without an Engine makes totally sense, it doesn't even need one in its constructor). Which one to use? Depends on the context.
– Federico Pugnali
Oct 26 '12 at 19:31
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How to copy data from one table to another new table in MySQL?
...d,from_uid,now(),'Pending','Assigned'
FROM table1
If you want to include all rows from table1. Otherwise you can add a WHERE statement to the end if you want to add only a subset of table1.
I hope this helps.
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What's the best practice for primary keys in tables?
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I follow a few rules:
Primary keys should be as small as necessary. Prefer a numeric type because numeric types are stored in a much more compact format than character formats. This is because most primary keys will be foreign keys in another table as well as used in multipl...
Hibernate Annotations - Which is better, field or property access?
...d to add logic for", or "xxxx breaks encapsulation". However, nobody has really commented on the theory, and given a properly reasoned argument.
What is Hibernate/JPA actually doing when it persists an object - well, it is persisting the STATE of the object. That means storing it in a way that it ...
How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
... (you can see them in the first diagram), one for B and one for C who virtually inherit A. D's object size is increased because it stores 2 pointers now; however there is only one A now.
So B::A and C::A are the same and so there can be no ambiguous calls from D. If you don't use virtual inheri...
How do I get my Maven Integration tests to run
...he *Test not the *Integration.java files will run when executing: mvn install I need to run my *Test.java as the default, but for my nightlty build I need to run both *Test.java and *Integration.java. I have to execute mvn install then cd to each sub-child directory and execute mvn -Dtest=**/*In...
What is the best extension for SQLite database files? [closed]
...king about in the database by themselves. The program reads and writes it all by itself. The only reason for a user to touch the DB file is to take a backup copy. Therefore I have named it whatever_records.db
The simple .db extension tells the user that it is a binary data file and that's all the...
Is modern C++ becoming more prevalent? [closed]
When I first learned C++ 6-7 years ago, what I learned was basically "C with Classes". std::vector was definitely an advanced topic, something you could learn about if you really wanted to. And there was certainly no one telling me that destructors could be harnessed to help manage memory.
Toda...
Go to Matching Brace in Visual Studio?
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This was useful for me because it wasn't set for me at all in VS 2017.
– Mmm
Dec 13 '18 at 23:54
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