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In git how is fetch different than pull and how is merge different than rebase?
...ch and updates the repository data, but leaves the local branch unchanged, then what is the point of fetching if the working directory does not show/reflect the changes? My question originally was that how could I see the changes someone else has done and then decide whether I would like to merge th...
Composer Warning: openssl extension is missing. How to enable in WAMP
...by copying one of the examples, like php.ini-development to a new file and then name it php.ini. Then make these changes there.
Also, in the future, to install tools such as PHP and Composer, I recommend using the Chocolatey package manager. Then it's as simple as choco install composer. Of course,...
How to change column order in a table using sql query in sql server 2005?
... a new CREATE TABLE command, copying over the data from the old table, and then dropping it.
There is no SQL command to define the column ordering.
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Docker - how can I copy a file from an image to a host?
...ile from an image, create a temporary container, copy the file from it and then delete it:
id=$(docker create image-name)
docker cp $id:path - > local-tar-file
docker rm -v $id
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How to test an SQL Update statement before running it?
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Using transactions is better in order to check data then. Assuming he wants to check the result, I conclude his statement is more complex than a 'SET bar = 42', so within his session he will be able to make several queries to test the resulting set of data ...
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psql: FATAL: role “postgres” does not exist
...Create DB | {}
If there is not at least one role with superuser, then you have a problem :-)
If there is one, you can use that to login. And looking at the output of your \l command: The permissions for user on the template0 and template1 databases are the same as on my Ubuntu system for...
What is a good Hash Function?
...If you care about cryptographically secure or anything else more advanced, then YMMV. If you just want a kick ass general purpose hash function for a hash table lookup, then this is what you're looking for.
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What is reflection and why is it useful?
...ook at the object and find out if it has a method called 'doSomething' and then call it if you want to.
So, to give you a code example of this in Java (imagine the object in question is foo) :
Method method = foo.getClass().getMethod("doSomething", null);
method.invoke(foo, null);
One very commo...
Making macOS Installer Packages which are Developer ID ready
... For this we need to use a Scheme Action.
Edit Scheme and expand Archive. Then click post-actions and add a New Run Script Action:
In Xcode 6:
#!/bin/bash
PACKAGES="${ARCHIVE_PATH}/Packages"
PACKAGE_NAME=`echo "$PRODUCT_NAME" | sed "s/ /_/g"`
ARCHIVE_FILENAME="$PACKAGE_NAME.pkg"
PKG="${OBJROOT}...
Why does setTimeout() “break” for large millisecond delay values?
...ly coercing the delay to an unsigned 32-bit int value. If (1) is the case, then I'm really passing a negative value for the delay. If it's (2), then something like delay >>> 0 happens, so the delay passed is zero. Either way, the fact that the delay is stored as a 32-bit unsigned int explai...