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What GRANT USAGE ON SCHEMA exactly do?
...sion may arise from the fact that the public schema has a default GRANT of all rights to the role public, which every user/group is a member of. So everyone already has usage on that schema.
The phrase:
(assuming that the objects' own privilege requirements are also met)
Is saying that you mu...
Using Emacs to recursively find and replace in text files not already open
...to find out how to do something like this which should be easy, that especially stops me from getting more used to using Emacs and instead starting up the editor I'm already familiar with. I use the example here fairly often in editing multiple files.
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Xcode + remove all breakpoints
Is there any way to remove all the breakpoints in Xcode?
12 Answers
12
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How to fetch all Git branches
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You can fetch all branches from all remotes like this:
git fetch --all
It's basically a power move.
fetch updates local copies of remote branches so this is always safe for your local branches BUT:
fetch will not update local branch...
How can I extract all values from a dictionary in Python?
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If you want all of the values, use this:
dict_name_goes_here.values()
If you want all of the keys, use this:
dict_name_goes_here.keys()
IF you want all of the items (both keys and values), I would use this:
dict_name_goes_here.ite...
Copy all files with a certain extension from all subdirectories
Under unix, I want to copy all files with a certain extension (all excel files) from all subdirectories to another directory. I have the following command:
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How to remove all listeners in an element? [duplicate]
...at the fastest way to do this is to just clone the node, which will remove all event listeners:
var old_element = document.getElementById("btn");
var new_element = old_element.cloneNode(true);
old_element.parentNode.replaceChild(new_element, old_element);
Just be careful, as this will also clear ...
Rails :dependent => :destroy VS :dependent => :delete_all
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The difference is with the callback.
The :delete_all is made directly in your application and deletes by SQL :
DELETE * FROM users where compagny_id = XXXX
With the :destroy, there is an instantiation of all of your children. So, if you can't destro...
How to remove all whitespace from a string?
...\r\v\fy \t\n\r\v\f"
## [4] NA
The base R approach: gsub
gsub replaces all instances of a string (fixed = TRUE) or regular expression (fixed = FALSE, the default) with another string. To remove all spaces, use:
gsub(" ", "", x, fixed = TRUE)
## [1] "xy" "←→" ...
How can I list all collections in the MongoDB shell?
In the MongoDB shell, how do I list all collections for the current database that I'm using?
22 Answers
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