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Catching multiple exception types in one catch block

..., you can catch AError and BError in the same block (it is somewhat easier if you are the one defining the exceptions). Even given that there are exceptions you want to "fall through", you should still be able to define a hierarchy to match your needs. abstract class MyExceptions extends Exception ...
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What is Weak Head Normal Form?

...a constructor, stop. To avoid building these large expressions when we know all the subexpressions will have to be evaluated, we want to force the inner parts to be evaluated ahead of time. seq seq is a special function that is used to force expressions to be evaluated. Its semantics are that s...
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Difference between std::system_clock and std::steady_clock?

...able 59 C1 and C2 denote clock types. t1 and t2 are values returned by C1::now() where the call returning t1 happens before the call returning t2 and both of these calls occur before C1::time_point::max(). [ Note: this means C1 did not wrap around between t1 and t2. —end note ] Expression: ...
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How do I finish the merge after resolving my merge conflicts?

... of completing a merge after resolving conflicts is to use 'git commit'. Now with commands like 'git rebase' and 'git cherry-pick' having a '--continue' option adding such an option to 'git merge' presents a consistent UI. ...
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Convert pem key to ssh-rsa format

I have a certificate in der format, from it with this command I generate a public key: 8 Answers ...
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Rails 3 execute custom sql query without a model

... row[0] end You need to have TinyTds gem installed, since you didn't specify it in your question I didn't use Active Record share | improve this answer | follow ...
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How do you manage databases in development, test, and production?

...o keep track of the current database version, and only execute the scripts if they are for a newer version. Use a migration solution. These solutions vary by language, but for .NET I use Migrator.NET. This allows you to version your database and move up and down between versions. Your schema is s...
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how to mysqldump remote db from local machine

...robably connects by socket rather then by port) edit: well, to elaborate: if host is set to localhost, a configured (or default) --socket option is assumed. See the manual for which option files are sought / used. Under Windows, this can be a named pipe. ...
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How to do error logging in CodeIgniter (PHP)

... Now the link is http://ellislab.com/codeigniter/user-guide/general/errors.html – machineaddict May 15 '13 at 9:15 ...
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C# Sortable collection which allows duplicate keys

...ompare(TKey x, TKey y) { int result = x.CompareTo(y); if (result == 0) return 1; // Handle equality as beeing greater else return result; } #endregion } You will use it when instancing a new SortedList, SortedDictionary etc: SortedLi...