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Is it a good idea to index datetime field in mysql?
I am working on designing a large database. In my application I will have many rows for example I currently have one table with 4 million records. Most of my queries use datetime clause to select data. Is it a good idea to index datetime fields in mysql database?
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error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
My problem started off with me not being able to log in as root any more on my mysql install. I was attempting to run mysql without passwords turned on... but whenever I ran the command
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How do I add a class to a given element?
I have an element that already has a class:
25 Answers
25
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what is the basic difference between stack and queue?
What is the basic difference between stack and queue??
11 Answers
11
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Design patterns or best practices for shell scripts [closed]
Does anyone know of any resources that talk about best practices or design patterns for shell scripts (sh, bash etc.)?
9 An...
How do I clone a generic List in Java?
I have an ArrayList<String> that I'd like to return a copy of. ArrayList has a clone method which has the following signature:
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How can I symlink a file in Linux? [closed]
I want to make a symbolic link in Linux. I have written this Bash command where the first path is the folder I want link into and the second path is the compiled source.
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How do I negate a test with regular expressions in a bash script?
Using GNU bash (version 4.0.35(1)-release (x86_64-suse-linux-gnu), I would like to negate a test with Regular Expressions. For example, I would like to conditionally add a path to the PATH variable, if the path is not already there, as in:
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Using only CSS, show div on hover over
I would like to show a div when someone hovers over an <a> element, but I would like to do this in CSS and not JavaScript. Do you know how this can be achieved?
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Can I squash commits in Mercurial?
I have a pair of commits that should really be just one. If I was using git, I would use:
8 Answers
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