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How to open a specific port such as 9090 in Google Compute Engine
I have 2 Google Compute Engine instances and I want to open port 9090 in both the instances. I think we need to add some firewall rules.
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Painless way to install a new version of R?
Andrew Gelman recently lamented the lack of an easy upgrade process for R (probably more relevant on Windows than Linux). Does anyone have a good trick for doing the upgrade, from installing the software to copying all the settings/packages over?
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How do you find the disk size of a Postgres / PostgreSQL table and its indexes
I'm coming to Postgres from Oracle and looking for a way to find the table and index size in terms of bytes/MB/GB/etc , or even better the size for all tables. In Oracle I had a nasty long query that looked at user_lobs and user_segments to give back an answer.
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Why is there no multiple inheritance in Java, but implementing multiple interfaces is allowed?
...nce is that two classes may define different ways of doing the same thing, and the subclass can't choose which one to pick.
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How to communicate between iframe and the parent site?
...bsite in the iframe isn't located in the same domain , but both are mine, and I would like to communicate between the iframe and the parent site. Is it possible?
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How to compare 2 files fast using .NET?
Typical approaches recommend reading the binary via FileStream and comparing it byte-by-byte.
18 Answers
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Difference between C++03 throw() specifier C++11 noexcept
Is there any difference between throw() and noexcept other than being checked at runtime and compile time, respectively?
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Differences between dependencyManagement and dependencies in Maven
What is the difference between dependencyManagement and dependencies ?
I have seen the docs at Apache Maven web site.
It seems that a dependency defined under the dependencyManagement can be used in its child modules without specifying the version.
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How do I UPDATE from a SELECT in SQL Server?
...ue) then change the ON statement to something like ON Table.id = @IdToEdit AND other_table.id = @NewValue
– Trisped
Oct 24 '12 at 18:41
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How to set the environmental variable LD_LIBRARY_PATH in linux
I have first executed the command: export LD_LIBRARY_PATH=/usr/local/lib
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