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  1. #1
    Senior Member
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    Apr 2016
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    sql database tables

    so im getting a bit ahead of myself here, allowing myself to the end of the year to study front end stuff, but i was watching a video that went into sql databases and this question arose in my mind, how does a database store an image or video file, are tables the only way data can be stored?


  3. #2
    WDF Staff mlseim's Avatar
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    Apr 2004
    Cottage Grove, Minnesota
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    They are stored as "blobs" .... google MySQL blob

    I normally store binary files in a directory and just the filename in table.

  4. #3
    Senior Member Ronald Roe's Avatar
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    Mar 2011
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    Large files like videos or high resolution images should be stored like mlseim suggests. For smaller images, you can just grab the data URI and store it as a string.
    Ron Roe
    Web Developer
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  5. #4
    Unpaid WDF Intern TheGAME1264's Avatar
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    Dec 2002
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    I'm not sure how MySQL works, but storing media in BLOBs can create performance issues in MS-SQL server: <-- this article basically explains that there's a breakpoint at 1MB whereby using the file system is more efficient. Between 256K and 1MB, it depends on many factors. Under 256K, a blob is more efficient.

    Personally, I don't fully agree with the abstract. There are cases where even under 256K utilizing the filesystem would be more efficient that the article doesn't go into e.g. storing of cacheable media such as images. There are also cases whereby your database server may fill up quickly, and if you're using a cloud database server you're going to pay extra for the overhead.

    My method has always been to store the file on the server and references to the filename and possibly file info (e.g. width, height) in the database. I also make sure to store any original files that are uploaded by users, etc. in case I need to adjust them later on (e.g. put a watermark on all of them, resize the full-size web image). But to each their own, I suppose.
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  6. #5
    Junior Member
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    Nov 2016
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    From my previous experience, I use blob datatype to store the image into the database. I didn't know how to use it too back then. But I started to understand it by using opensource code that you can find at github. Just google blob mysql github. Hope this helping you.

    Sent from my iPhone using Tapatalk

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