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What are the use cases for selecting CHAR over VARCHAR in SQL?

...R(10) = 10 bytes (4 bytes of waste) The bottom line is CHAR can be faster and more space-efficient for data of relatively the same length (within two characters length difference). Note: Microsoft SQL has 2 bytes of overhead for a VARCHAR. This may vary from DB to DB, but generally, there is at lea...
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uint8_t vs unsigned char

... It wasn't clear in the original question if we were talking about a standard type or not. I'm sure there have been many variations of this naming convention over the years. – Mark Ransom Nov 12 '09 at 22:50 ...
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JavaScript moving element in the DOM

...ee <div> elements on a page. How can I swap positions of the first and third <div> ? jQuery is fine. 7 Answe...
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Split code over multiple lines in an R script

... issue, try R> setwd(paste("~/a/very/long/path/here", "/and/then/some/more", "/and/then/some/more", "/and/then/some/more", sep="")) which also illustrates that it is perfectly fine to break code across multiple lines. ...
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How can I prevent the backspace key from navigating back?

On IE I can do this with the (terribly non-standard, but working) jQuery 33 Answers 33...
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HTML colspan in CSS

...ing absolute positioning, sizing, along with a similar variety of browser- and circumstance-specific caveats. Read, and make the best informed decision you can based on what you find. share | impro...
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How to debug Google Apps Script (aka where does Logger.log log to?)

...de a spreadsheet todo-checklist type thing that sorted items by priorities and such. The only triggers I installed for that script were the onOpen and onEdit triggers. Debugging the onEdit trigger was the hardest one to figure out, because I kept thinking that if I set a breakpoint in my onEdit fun...
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Uploading both data and files in one form using Ajax?

I'm using jQuery and Ajax for my forms to submit data and files but I'm not sure how to send both data and files in one form? ...
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How do I access the host machine from the guest machine? [closed]

... On the XP machine, find your IP address by going to the command prompt and typing ipconfig. Try replacing the last number with 1 or 2. For example, if your IP address is 192.168.78.128, use http://192.168.78.1:3000. ...
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How to declare variable and use it in the same Oracle SQL script?

I want to write reusable code and need to declare some variables at the beginning and reuse them in the script, such as: 10...