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What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
What is the difference between Unidirectional and Bidirectional associations?
4 Answers
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
... comes from fact that 2^6 == 64 bytes is standard size of cache line.
Now what does this mean? Well it means that if I have address X and address Y and
(X >> 6) - (Y >> 6) is divisible by L (i.e. some large power of 2), they will be stored in the same cacheline.
Now to go back to your...
What can be the reasons of connection refused errors?
I'm trying to write a server program in C,
using another client, I get this error when I try to connect through port 2080 for example.
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Best practice for Python assert
...code.
Then assert has four roles:
Inform Alice, Bernd, Carl, and Daphne what your code expects.
Assume you have a method that processes a list of tuples and the program logic can break if those tuples are not immutable:
def mymethod(listOfTuples):
assert(all(type(tp)==tuple for tp in listOfT...
Database: To delete or not to delete records
I don't think I am the only person wondering about this. What do you usually practice about database behavior? Do you prefer to delete a record from the database physically? Or is it better to just flag the record with a "deleted" flag or a boolean column to denote the record is active or inactive?
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How to run a C# console application with the console hidden
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Just what I was going to post :)
– Jon Skeet
May 7 '09 at 19:07
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Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.10:test
...ly because I am so new to both Maven and PlayN so I'm not entirely sure at what I'm looking at exactly. But, it is clearly fizzing up at building the core. Seems it can't download an "artifact filter", and is unable to run Surefire's test. But, I'm just speculating on things I don't quite underst...
eval command in Bash and its typical uses
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@Konos5 What comment? eval receives a string (which may itself be the result of parsing and evaluation), and interprets it as a code snippet.
– Gilles 'SO- stop being evil'
Jun 16 '12 at 19:41
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How do I get the AM/PM value from a DateTime?
...or get AM/PM from date. But if I want to change AM to PM in any date. Then what should I do ?
– Ajay Sharma
Apr 14 '16 at 6:11
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EF Migrations: Rollback last applied migration?
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@tutiplain Look at his second code block. You quoting what he wishes existed, not what does exist.
– Sinjai
Jun 22 '18 at 1:48
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