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@Basic(optional = false) vs @Column(nullable = false) in JPA
...ipseLink Architecture Committee Member, TopLink Core Technical Lead, JPA 2.0 Expert Group Member) wrote a good answer on this topic so instead of paraphrasing him, I'll quote his answer:
The difference between optional and
nullable is the scope at which they
are evaluated. The definition of
...
Django ManyToMany filter()
...
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edited Jun 10 '13 at 15:58
answered Feb 8 '10 at 3:34
...
Redis: possible to expire an element in an array or sorted set?
... Andres
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answered Sep 28 '11 at 8:42
yojimbo87yojimbo87
57.1k2121 gol...
What is an idiomatic way of representing enums in Go?
...
680
Quoting from the language specs:Iota
Within a constant declaration, the predeclared identifi...
How to format a string as a telephone number in C#
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206
Please note, this answer works with numeric data types (int, long). If you are starting with a ...
Getting value of public static final field/property of a class in Java via reflection
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answered Apr 21 '10 at 18:06
M. JessupM. Jessup
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...
Git remote branch deleted, but still it appears in 'branch -a'
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707
git remote prune origin, as suggested in the other answer, will remove all such stale branches....
conditional unique constraint
...this. The difference is, you'll return false if Status = 1 and Count > 0.
http://msdn.microsoft.com/en-us/library/ms188258.aspx
CREATE TABLE CheckConstraint
(
Id TINYINT,
Name VARCHAR(50),
RecordStatus TINYINT
)
GO
CREATE FUNCTION CheckActiveCount(
@Id INT
) RETURNS INT AS BEGIN
DE...
What are Bearer Tokens and token_type in OAuth 2?
...
answered Mar 26 '12 at 20:25
Abhishek TyagiAbhishek Tyagi
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...
What's the difference between “Normal Reload”, “Hard Reload”, and ...
...ll use the cache but revalidate everything during page load, looking for "304 Not Modified" responses. If the browser can avoid re-downloading cached JavaScript files, images, text files, etc. then it will.
Hard reload
Don't use anything in the cache when making the request. (which is equal to SHIF...