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Getting activity from context in android
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edited Sep 11 '16 at 23:59
bartonstanley
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Increment a value in Postgres
...tgres table and increment it by one. For example if the table 'totals' had 2 columns, 'name' and 'total', and Bill had a total of 203, what would be the SQL statement I'd use in order to move Bill's total to 204?
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How to generate a random number between a and b in Ruby?
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324
UPDATE: Ruby 1.9.3 Kernel#rand also accepts ranges
rand(a..b)
http://www.rubyinside.com/ru...
Difference between double and single curly brace in angular JS?
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282
{{}} - double curly braces:
{{}} are Angular expressions and come quite handy when you wish to...
Transactions in .net
What are the best practices to do transactions in C# .Net 2.0. What are the classes that should be used? What are the pitfalls to look out for etc. All that commit and rollback stuff. I'm just starting a project where I might need to do some transactions while inserting data into the DB. Any respons...
How to get the request parameters in Symfony 2?
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422
The naming is not all that intuitive:
use Symfony\Component\HttpFoundation\Request;
public fu...
Moving project to another folder in Eclipse
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252
Right click on the Eclipse project in the Package Explorer, select Refactor, then select Move....
Git submodule inside of a submodule (nested submodules)
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2 Answers
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@UniqueConstraint annotation in Java
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427
To ensure a field value is unique you can write
@Column(unique=true)
String username;
The @U...