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How do you merge two Git repositories?
...mit's title contains a reference to the old history tree:
Add 'rails/' from commit <rev>
Where <rev> is a SHA-1 commit hash. You can still see the history, blame some changes.
git log <rev>
git blame <rev> -- README.md
Note that you can't see the directory prefix fro...
node and Error: EMFILE, too many open files
...fs doesn't work... or you just want to understand where the leak is coming from. Follow this process.
(e.g. graceful-fs isn't gonna fix your wagon if your issue is with sockets.)
From My Blog Article: http://www.blakerobertson.com/devlog/2014/1/11/how-to-determine-whats-causing-error-connect-emfile...
Change type of varchar field to integer: “cannot be cast automatically to type integer”
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There is no implicit (automatic) cast from text or varchar to integer (i.e. you cannot pass a varchar to a function expecting integer or assign a varchar field to an integer one), so you must specify an explicit cast using ALTER TABLE ... ALTER COLUMN ... TYPE .....
Why does the order of the loops affect performance when iterating over a 2D array?
...ter? All memory accesses are the same, right?
No: because of caches. Data from your memory gets brought over to the CPU in little chunks (called 'cache lines'), typically 64 bytes. If you have 4-byte integers, that means you're geting 16 consecutive integers in a neat little bundle. It's actually f...
What is the difference between an int and an Integer in Java and C#?
...ce (or more accurately have references passed by value), and are allocated from the heap. Conversely, primitives are immutable types that are passed by value and are often allocated from the stack.
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Safe String to BigDecimal conversion
I'm trying to read some BigDecimal values from the string. Let's say I have this String: "1,000,000,000.999999999999999" and I want to get a BigDecimal out of it. What is the way to do it?
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Why can't Python find shared objects that are in directories in sys.path?
...rl.so module is in the system library path, which is distinct and separate from the python library path.
A "quick fix" is to add this path to a LD_LIBRARY_PATH variable. However, setting that system wide (or even account wide) is a BAD IDEA, as it is possible to set it in such a way that some progr...
Coloring white space in git-diff's output
...r.diff or color.ui set to auto since you say that you see coloured patches from git diff anyway.)
If you want to fine tune the type of whitespace errors that are highlighted in red, you can then change core.whitespace, but blank-at-eol is enabled by default so you probably won't need to change that...
Request format is unrecognized for URL unexpectedly ending in
...;/webServices>
</system.web>
</configuration>
More info from Microsoft
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How do you kill a Thread in Java?
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I use method getConnection() from java.sql.DriverManager. If the connection attemt takes too long I try to kill the corresponding thread by calling Thread.interrupt() but it doesn't influence the thread at all. The Thread.stop() works however, although o...