Databases
StackOverflow2013
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    1. POIdeal HTTP cache control headers for different types of resources
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    1. USPaul Bellora
    1. USAndrew L
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    1. CODifferent URLs for new builds are probably not an option: a) This would force the client to re-download the forever-cacheable files. They get unique names to avoid that. b) The main URL to my site should be just `https://www.example.com/` c) I want bookmarks to always refer to the newest version of my site (imagine, the bookmarks to a stackoverflow question would contain the build number of the site).
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      1. USChris Lercher
    2. COHi Chris, This approach is generally used for CSS and JS resources rather than documents. I agree it's not applicable for document identifiers, in which case you should simply set cache-control public, Last-Modified and etag on the headers which will cause a freshness check each time and only a 304 will be sent back if there are no changes since the last download. Alternatively, you could download the actual dynamic page content in each page via JS so you preserve the URL while still allowing effective caching.
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      1. USAndrew L
    3. COYes, that's pretty much the way, GWT handles this for me: My index.html (changing occasionally) includes mymodule.nocache.js (changing occasionally), which automatically includes the correct forever-cacheable files (large parts of js, GWT managed image bundles, ...) The only thing it leaves to me, is setting the correct http headers for each type. I want to reduce these headers to a minimum, since they account for a large percentage of the transfer volume. So do I need e.g. both Last-Modified *and* ETag etc.?
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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