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How to safely upgrade an Amazon EC2 instance from t1.micro to large? [closed]
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If the snapshot is of the root volume, Amazon recommends stopping the instance before taking the snapshot: docs.aws.amazon.com/AWSEC2/latest/UserGuide/…
– Taterhead
Dec 8 '16 at 9:38
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Why do all browsers' user agents start with “Mozilla/”?
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30
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Regular expression for letters, numbers and - _
I'm having trouble checking in PHP if a value is is any of the following combinations
6 Answers
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Linq to EntityFramework DateTime
...example I kept two Where clauses to match the original format. Even if you compress the two into a single Where clause, Entity Framework generates identity SQL so it's really a matter of readability.
– Justin Niessner
Nov 10 '10 at 16:24
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Move an item inside a list?
... it to [1,2,[3,4,5],6,7,8,9]? Can this be done in one step or with a list comprehension?
– g33kz0r
Feb 21 '13 at 19:04
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How to create a new (and empty!) “root” branch?
...checkout --orphan YourBranchName
This will create a new branch with zero commits on it, however all of your files will be staged. At that point you could just remove them.
("remove them": A git reset --hard will empty the index, leaving you with an empty working tree)
Take a look at the man page ...
@UniqueConstraint and @Column(unique = true) in hibernate annotation
...umnNames = {"mask", "group"})}
)
Implies that the values of mask + group combined should be unique. That means you can have, for example, a record with mask.id = 1 and group.id = 1, and if you try to insert another record with mask.id = 1 and group.id = 2, it'll be inserted successfully, whereas i...
Is there a Mutex in Java?
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See this page: http://www.oracle.com/technetwork/articles/javase/index-140767.html
It has a slightly different pattern which is (I think) what you are looking for:
try {
mutex.acquire();
try {
// do something
} finally {
mutex.release();
}
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Get image data url in JavaScript?
... 3.5) of Firefox, so if you want to support that, you'll need to check the compatibility. If the encoding is not supported, it will default to "image/png".
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