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MySQL - why not index every field?

...y I've learned the wonder of indexes, and performance has improved dramatically. However, with all I've learned, I can't seem to find the answer to this question. ...
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How do you check “if not null” with Eloquent?

... Actually here 'and' does nothing but it would do if first parameter would be an array. Here is the method prototype : public function where($column, $operator = null, $value = null, $boolean = 'and'); and location - ".....\vendor...
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How to remove the first commit in git?

...med reference HEAD, so it will reset (softly, you will not lose your work) all your commits of your current branch. If what you want is to merge the first commit with the second one, you can use the rebase command: git rebase -i --root A last way could be to create an orphan branch, a branch wit...
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Remove folder and its contents from git/GitHub's history

...les from git history' git gc git push origin master --force What git actually does: The first line iterates through all references on the same tree (--tree-filter) as HEAD (your current branch), running the command rm -rf node_modules. This command deletes the node_modules folder (-r, without -r,...
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How to check if a particular service is running on Ubuntu

... I don't have an Ubuntu box, but on Red Hat Linux you can see all running services by running the following command: service --status-all On the list the + indicates the service is running, - indicates service is not running, ? indicates the service state cannot be determined. ...
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How to find children of nodes using BeautifulSoup

I want to get all the <a> tags which are children of <li> : 6 Answers 6...
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How do you push a tag to a remote repository using Git?

..."annotated" and "reachable from the pushed commits". I hoped it would push all reachable tags, whatever if annotated or not. Maybe edit to make sure it's not an OR? – Gauthier Jun 11 '15 at 13:00 ...
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Is JavaScript guaranteed to be single-threaded?

JavaScript is known to be single-threaded in all modern browser implementations, but is that specified in any standard or is it just by tradition? Is it totally safe to assume that JavaScript is always single-threaded? ...
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With GitHub how do I push all branches when adding an existing repo?

... Note: git push --all won't push your tags, only your branches. git push --all git push --tags would really push everything. See also "Set up git to pull and push all branches". Don't forget the --dry-run option to make some test before act...
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Git number of commits per author on all branches

I'd like to get the number of commits per author on all branches. I see that 1 Answer ...