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Multiple queries executed in java in single statement
Hi I was wondering if it is possible to execute something like this using JDBC as it currently provides an exception even though it is possible in the MySQL query browser.
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What do I return if the return type of a method is Void? (Not void!)
Due to the use of Generics in Java I ended up in having to implement a function having Void as return type:
6 Answers
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Python integer division yields float
Is this intended? I strongly remember earlier versions returning int/int=int ? What should I do, is there a new division operator or must I always cast?
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How to tell Maven to disregard SSL errors (and trusting all certs)?
I frequently need to run "mvn" command :
4 Answers
4
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Is there a simple way to remove unused dependencies from a maven pom.xml?
I have a large Maven project with many modules and many pom.xml files. The project has changed and I suspect the pom's contain some unnecessary dependencies. Is there is a command which removes any unused dependencies from a pom?
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How to override Backbone.sync?
I'm trying out Backbone.js, and one of the things I'm trying is to make a call to a remote API, so I need to be able to override Backbone.sync, as I understand the documentation .
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How does Junit @Rule work?
I want to write test cases for a bulk of code, I would like to know details of JUnit @Rule annotation feature, so that I can use it for writing test cases. Please provide some good answers or links, which give detailed description of its functionality through a simple example.
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Rails ActionMailer - format sender and recipient name/email address
...s there a way to specify email AND name for sender and recipient info when using ActionMailer?
6 Answers
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Is returning by rvalue reference more efficient?
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Beta_ab&&
Beta::toAB() const {
return move(Beta_ab(1, 1));
}
This returns a dangling reference, just like with the lvalue reference case. After the function returns, the temporary object will get destructed. You should return Beta_ab by value, like the foll...
SQLite table constraint - unique on multiple columns
I can find syntax "charts" on this on the SQLite website, but no examples and my code is crashing. I have other tables with unique constraints on a single column, but I want to add a constraint to the table on two columns. This is what I have that is causing an SQLiteException with the message "syn...