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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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Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
I want to use my Amazon ec2 instance but faced the following error:
29 Answers
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How to terminate script execution when debugging in Google Chrome?
When stepping through JavaScript code in Google Chrome debugger, how do I terminate script execution if I do not want to continue? The only way I found is closing the browser window.
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Alternate table row color using CSS?
I am using a table with alternate row color with this.
9 Answers
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How to remove leading zeros from alphanumeric text?
I've seen questions on how to prefix zeros here in SO. But not the other way!
19 Answers
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Highlight bash/shell code in markdown
How to highlight the bash/shell commands in markdown files?
7 Answers
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What is the exact meaning of IFS=$'\n'?
If the following example, which sets the IFS environment variable to a line feed character...
6 Answers
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typecast string to integer - Postgres
I am importing data from a table which has raw feeds in Varchar, I need to import a column in varchar into a string column. I tried using the <column_name>::integer as well as to_number(<column_name>,'9999999') but I am getting errors, as there are a few empty fields, I need to retri...
How To Get IPython Notebook To Run Python 3?
I am new to Python to bear with me.
9 Answers
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How to retrieve checkboxes values in jQuery
How to use jQuery to get the checked checkboxes values, and put it into a textarea immediately?
15 Answers
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